Gotowe bibliografie tematyczne / JATROPHA BIODIESEL

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Gotowa bibliografia na temat „JATROPHA BIODIESEL”

Autor: Grafiati
Data publikacji: 11 września 2023

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Artykuły w czasopismach na temat "JATROPHA BIODIESEL"

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Mayowa, Jadesola. "Biodiesel Production Innovation Based on Jatropha Curcas and Soybean Oil". International Journal Papier Advance and Scientific Review 4, nr 1 (15.03.2023): 10–15. http://dx.doi.org/10.47667/ijpasr.v4i1.192.

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Biodiesel Production Innovation Based on Jatropha Curcas and Soybean Oil Jadesola Mayowa1 1University of Ibadan Abstract The study evaluated the potential of Jatropha curcas and soybean oil as feedstocks for biodiesel production and compared the performance of the biodiesels produced. The biodiesels were characterized and their performance was tested in terms of density, viscosity, engine efficiency, power output, and emissions. The results showed that both biodiesels had similar properties and performance compared to conventional diesel fuel, making them suitable alternatives. However, further research and optimization may be required to improve the properties of the biodiesels and ensure their sustainability as feedstocks for biodiesel production. The study provides valuable information for the development of sustainable and eco-friendly energy solutions based on Jatropha curcas and soybean oil as feedstocks for biodiesel production.
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Montes-Núñez, D. G., G. Montero-Alpírez, M. A. Coronado-Ortega, J. R. Ayala-Bautista, J. A. León-Valdez, A. M. Vázquez-Espinoza, R. Torres-Ramos i C. García-González. "From seeds to bioenergy: a conversion path for the valorization of castor and jatropha sedes". Grasas y Aceites 73, nr 4 (15.12.2022): e482. http://dx.doi.org/10.3989/gya.0571211.

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The world’s energy matrix can be diversified with biodiesel from castor and jatropha oil. Hence, the objective of this study was to assess a conversion path for the valorization of castor and jatropha seeds. The results showed the maximum extraction of castor oil at 90 °C, 2 rpm, and 6 mm nozzle, achieving a yield of 36.97% and for jatropha oil at 100 °C, 1.5 rpm, and 10 mm nozzle, achieving a yield of 20.11%. The acid value and cloud point of castor and jatropha oil were 0.797 and 23.44 mg KOH/g, 10±1 °C and 12±0.55 °C, respectively; while the pour point was -3 °C for both. The acid value and cloud point for biodiesels ranged from 0.26-0.43 mg KOH/g, and -12.50-6.10 °C, respectively. The viscosity of oils and biodiesel ranged from 0.02-1.3 P. GC-MS indicated 66.38% of methyl ricinoleate in castor biodiesel and 31.64% of methyl oleate in jatropha biodiesel. The HHV for castor and jatropha biodiesel ranged from 32.37-40.25 MJ/kg.
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Bombo, Katlego, Tumeletso Lekgoba, Oluwatosin Azeez i Edison Muzenda. "Production of Biodiesel from Moringa Oleifera and Jatropha Curcas Seed Oils over a Modified ZnO/Fly Ash Catalyst". Environmental and Climate Technologies 25, nr 1 (1.01.2021): 151–60. http://dx.doi.org/10.2478/rtuect-2021-0010.

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Abstract Methyl ester biodiesel was produced from Moringa Oleifera oil and Jatropha Curcas oil with the sole aim of assessing the feasibility of the feedstocks as viable sources of biodiesel in Botswana. Oil extraction and transesterification were carried out under identical experimental conditions for both Jatropha Curcas and Moringa Oleifera biomass. Oil was extracted from seeds through a soxhlet extraction method using the solvent, n-hexane. The extracted oil was then trans-esterified at 60 °C using a methanol/oil ratio of 12:1 at a stirring rate of 350 rpm, 3 wt. % catalyst loading and 120 min reaction time. Zinc Oxide modified with fly ash was used as heterogeneous catalyst for the process. GC analysis results of biodiesels produced indicated that the highest biodiesel yield was obtained from Jatropha seed oil. Moringa biodiesel showed a greater proportion of docosanedioic acid while Jatropha biodiesel composed of oleic acid in larger proportions. Both oleic and docosanedioic acid are unsaturated methyl esters. The results obtained suggests Jatropha as the more suitable feedstock as compared to Moringa.
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Ali, Mehmood, i Saqib Jamshed Rind. "Rendimiento del motor y análisis de emisiones utilizando biodiésel de Neem y Jatropha". La Granja 32, nr 2 (28.08.2020): 19–29. http://dx.doi.org/10.17163/lgr.n32.2020.02.

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This paper presents the production of biodiesel from indigenous species of Jatropha curcas and Neem (Azadirachta indica) oils, then its engine performance and emission characteristics of B10 blends measured at 1000 rpm. Biodiesel production yields were found 90% and 68% by weight from Jatropha curcas and Neem (Azadirachta indica), respectively. Three prepared biodiesel blends were 10% Neem biodiesel (NB10), 10% Jatropha biodiesel (JB10) and 5% Jatropha + 5% Neem biodiesels (NJB10). The engine emission test showed less carbon monoxide production from NB10 (94 +- 2.15 ppm), followed by JB10 (100+- 2.44ppm) and NJB10 (121 +- 3.65ppm) as compared to diesel (135+- 2.18ppm). However, the carbon dioxide emissions were found higher due to the better combustion characteristics of biodiesel blends as NB10 (3.21%), JB10 (3.06%) and NJB10 (2.53%) than diesel (2.13%) by volume. The reduced amounts of sulphur dioxide (SO2) emissions were found with blended biodiesel fuel in comparison to mineral diesel. Nitrogen dioxide (NO2) emissions were 5 ppm from diesel at 73 C exhaust temperature, while it was increased by using blended biodiesel, to 8 ppm with NB10 due to higher exhaust temperatures 85;33 C. The measured engine power and torque produced from the blended biodiesel samples were slightly lower than the conventional diesel by 12% and 7.7%, respectively. The experimental results showed that an engine performance and emission characteristic of Neem biodiesel (NB10) was better as compared to other biodiesel blends.
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Rao, Muthe Srinivasa, i R. B. Anand. "Working Characteristics of a DICI Engine by Using Water Emulsion Biodiesel Fuels". Applied Mechanics and Materials 592-594 (lipiec 2014): 1847–51. http://dx.doi.org/10.4028/www.scientific.net/amm.592-594.1847.

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The present experimental investigation is carried out to establish the stability, compatibility and feasibility of working characteristics of DICI engine by using Jatropha biodiesel, Pongamia biodiesel and related water emulsion biodiesels. Experiments are carried out in two phases on a DICI engine test rig which includes CI engine, electric loading device, exhaust gas analysers, and a data-acquisition system. The performance and emission characteristics of the engine are studied by using neat diesel, Jatropha and Pongamia biodiesel in the first phase, and similar experiments are conducted by water – biodiesel emulsion fuels in the second phase. The water–biodiesel emulsion fuels are prepared with the aid of a mechanical homogenizer in the proportion of 10% water, 88 % biodiesel, and 2 % surfactants (by volume). Sequentially, the stability characteristics of water–biodiesel emulsion fuels are analyzed. The results indicated that slight improvement in BTE and BSFC for water – biodiesel emulsion fuels compared to biodiesel fuels. The exhaust emissions of NOx and smoke opacity were decreased for the water biodiesel emulsion fuels as compared to respective neat biodiesel and neat diesel. CO & unburned HC emissions were slightly increased for the water biodiesel emulsion fuels compared to respective neat biodiesels and less than of neat diesel.
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Hossain, Abul, i Abdul Hussain. "Impact of Nanoadditives on the Performance and Combustion Characteristics of Neat Jatropha Biodiesel". Energies 12, nr 5 (10.03.2019): 921. http://dx.doi.org/10.3390/en12050921.

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Jatropha biodiesel was produced from neat jatropha oil using both esterification and transesterification processes. The free fatty acid value content of neat jatropha oil was reduced to approximately 2% from 12% through esterification. Aluminium oxide (Al2O3) and cerium oxide (CeO2) nanoparticles were added separately to jatropha biodiesel in doses of 100 ppm and 50 ppm. The heating value, acid number, density, flash point temperature and kinematic viscosity of the nanoadditive fuel samples were measured and compared with the corresponding properties of neat fossil diesel and neat jatropha biodiesel. Jatropha biodiesel with 100 ppm Al2O3 nanoparticle (J100A100) was selected for engine testing due to its higher heating value and successful amalgamation of the Al2O3 nanoparticles used. The brake thermal efficiency of J100A100 fuel was about 3% higher than for neat fossil diesel, and was quite similar to that of neat jatropha biodiesel. At full load, the brake specific energy consumption of J100A100 fuel was found to be 4% higher and 6% lower than the corresponding values obtained for neat jatropha biodiesel and neat fossil diesel fuels respectively. The NOx emission was found to be 4% lower with J100A100 fuel when compared to jatropha biodiesel. The unburnt hydrocarbon and smoke emissions were decreased significantly when J100A100 fuel was used instead of neat jatropha biodiesel or neat fossil diesel fuels. Combustion characteristics showed that in almost all loads, J100A100 fuel had a higher total heat release than the reference fuels. At full load, the J100A100 fuel produced similar peak in-cylinder pressures when compared to neat fossil diesel and neat jatropha biodiesel fuels. The study concluded that J100A100 fuel produced better combustion and emission characteristics than neat jatropha biodiesel.
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Sapee, Syazwana, Ahmad Fitri Yusop, Mohammad Nazri Mohd Jaafar, Rizalman Mamat, Wan Asma Ibrahim, Hazir Farouk, Norwazan Abdul Rahim, Ilyia Syafira Ab Razak, Muhammad Syahiran Abdul Malik i Zhang Bo. "Synthesis of non-edible biodiesel from crude jatropha oil and used cooking oil". MATEC Web of Conferences 225 (2018): 06008. http://dx.doi.org/10.1051/matecconf/201822506008.

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This study focuses on a feasibility study of alternative nonedible crude oil such as jatropha and used cooking oil in biodiesel production. Crude jatropha oil (CJO) and used cooking oil (UCO) were converted to biodiesel using a two-step transesterification process with presents of acid-based and alkaline-based catalysts. Each three biodiesel blends (B5, B15 and B25) have been produced by blended with conventional diesel fuel (CDF). Determination of the fuel properties for each blend including CDF, Jatropha Methyl Ester (JME) and Used Cooking Oil Methyl Ester (UCOME) have been carried out. The average yield for jatropha and used cooking oil biodiesels production was 94.3% and 92% respectively. The increment of the percentage of JME or UCOME in its blends is proportional to fuels physical properties such as density, specific gravity, kinematic viscosity and surface tension, however inversely proportional to fuels calorific value. Based on the results of this study, it is acceptable to conclude that non-edible CJO and UCO are viable alternatives to edible oil as feedstock to renewable fuel in order to reduce the greenhouse gases produced.
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Simon, Carla Da Penha, Edney Leandro da Vitória, Elcio Das Graça Lacerda i Ismael Lourenço de Jesus Freitas. "OPERATING PERFORMANCE OF A TRACTOR WORKING WITH DIFFERENT RATIOS OF CASTOR BEAN AND JATROPHA BIODIESEL". REVISTA ENGENHARIA NA AGRICULTURA - REVENG 26, nr 1 (23.02.2018): 35–42. http://dx.doi.org/10.13083/reveng.v26i1.844.

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There is a growing global quest for clean energy. One of the alternatives is the use of agroenergy, which is the use of vegetable and animal raw material for the production of biofuels. Among them, biodiesel stands out for its renewable and biodegradable nature. The objective of this study was to evaluate the operating performance and smoke opacity of an agricultural tractor fed with different types and ratios of castor bean and Jatropha biodiesels. The study was conducted at Fazenda Experimental CEUNES / UFES, Campus São Mateus - ES. The mixture ratios of biodiesel/diesel used were: B0 (0/100%), B5 (5% 95%), B15 (15%/85% diesel), B25 (25%/75%), B50 (50%/50%), B75 (75%/25%), and B100 (100%/0%). The results showed an increase of 20.0% and 14.8% in the specifc consumption comparing B0 to B100 of castor and Jatropha, respectively. The smoke opacity reduced 24.50% and 54.05% when working with castor and Jatropha biodiesel, respectively. The smoke opacity of the castor B100 is 65.68% higher when compared to Jatropha B100.
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Mariono, Mariono, Wahyudi Wahyudi i Muhammad Nadjib. "Effect of Density and Viscosity on Injection Characteristic of Jatropha - waste Cooking Oil Biodiesel Mixture." JMPM (Jurnal Material dan Proses Manufaktur) 7, nr 1 (1.07.2023): 44–52. http://dx.doi.org/10.18196/jmpm.v7i1.17896.

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Biodiesel has an important role in the world of transportation and its existence is taken into account. So the availability of biodiesel fuel in the future will be difficult to eliminate and must continue to be fulfilled. Therefore, it is necessary to innovate to increase the availability of biodiesel fuel. Biodiesel can be made from biological materials and includes renewable energy as a substitute for diesel oil. The production of biodiesel in this study jatropha and waste cooking oil as raw materials. This study aims to determine the effect of density and viscosity on the injection characteristics of jatropha-waste cooking oil biodiesel mixtures (1:4 and 4:1) on various B5-B40 fuels. Production of biodiesel from jatropha and waste cooking oil through degumming, esterification and transesterification processes. The results showed that the jatropha-waste cooking oil biodiesel mixed with 1:4 level B15 and 4:1 mixed with B10 level complied with SNI 7182-2015 biodiesel standards. The higher the density and viscosity values of jatropha-waste cooking oil biodiesel, the narrower the spray angle and the longer the spray penetration
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Yunus, Syarifah, Amirul Abd Rashid, Syazuan Abdul Latip, Nik Rosli Abdullah, Rizalman Mamat i Abdul Hakim Abdullah. "Performance and Emissions of Jatropha-Palm Blended Biodiesel". Applied Mechanics and Materials 393 (wrzesień 2013): 344–49. http://dx.doi.org/10.4028/www.scientific.net/amm.393.344.

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This paper deals with performances and emissions of Jatropha-Palm blended biodiesel as fuel for 4-stroke single vertical cylinder diesel engine. Five fuel samples were tested; i) Diesel fuel supplied by Petronas (PDF); ii) 5% of blended Jatropha-Palm biodiesel and 95% Diesel fuel (B5JPB); iii) 10% of blended Jatropha-Palm biodiesel and 90% Diesel fuel (B10JPB); iv) 15% of blended Jatropha-Palm biodiesel and 85% Diesel fuel (B15JPB); and v) 20% of blended Jatropha-Palm biodiesel and 80% Diesel fuel (B20JPB). Engine performances (specific fuel consumption, brake thermal efficiency) and emissions (exhaust gas temperature and Nox emission) were analyzed and have been discussed in this study. All tests were carried out at varied load conditions which were 0.13, 0.15, 0.17, 0.19 and 0.21 kW. The results revealed that B10JPB blended showed better engine performances compared to its other blends and comparable performances compared to PDF. Comparable Nox emitted of all Jatropha-Palm fuel blended biodiesel fuel sample has been demonstrated to those PDF.
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Rozprawy doktorskie na temat "JATROPHA BIODIESEL"

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Kasim, Farizul Hafiz. "In situ transesterification of Jatropha curcas for biodiesel production". Thesis, University of Newcastle Upon Tyne, 2012. http://hdl.handle.net/10443/1788.

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Biodiesel is primarily produced by transesterification of edible oils. Increasing concern about using food supplies for fuel has generated interest in alternative raw materials. Furthermore, there are numerous steps between harvesting of oilseeds and final production of biodiesel that can be integrated, thereby simplifying the process and making it more suitable for distributed production. Hence, in this study, the production of biodiesel via in situ transesterification of non-edible Jatropha curcas seed has been investigated. The main aim was to investigate the parameters of the process, with a view to reducing the substantial excess of methanol required. A significant secondary aim was to investigate the possibility of utilising other compounds that come out from the process. “Design of experiments” was employed to study the parameters at lab-scale, with the matrix boundary being determined beforehand using one-at-a-time experiments. The reduction of methanol excess was attempted by use of two co-solvents, hexane and diethylmethane (DEM), and by replacing methanol with methyl acetate. It was found that in situ transesterification run using particle sizes below 0.71 mm, a 400:1 molar ratio of methanol to oil, 60 minutes, and a minimum of 300 rpm mixing intensity yielded the highest biodiesel yield of 83 wt %. NaOH concentration and reaction temperature were not found to be significant variables, and were set at 1.0 N and 30oC respectively. DEM was a more effective co-solvent than hexane. The addition of DEM to the process at 400:1 molar ratio experiment increased the yield from 83 to 92 wt %. When methyl acetate was used to replace methanol, the requirement of molar ratio of solvent:oil reduced significantly to 175:1 to achieved 86.8 wt% of biodiesel. The solid meal was shown to contain substantial amounts of protein, making it a valuable co-product stream. Previously J. curcas meal had had little value as animal feed due to its toxicity, but this may be reduced or removed by this process.
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Almeida, Joana Teresa Gomes Dias. "Generic life cycle assessment of the Jatropha biodiesel system". Master's thesis, FCT - UNL, 2009. http://hdl.handle.net/10362/3362.

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Dissertação apresentada na Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa para obtenção do Grau de Mestre em Energia e Bioenergia
A espécie Jatropha curcas L. é uma planta selvagem pantropical que recentemente conquistou a atenção de investidores e cientistas enquanto matéria-prima para biodiesel. As opiniões positivas quanto a esta opção são abundantes, mas a falta de input científico extenso e intensivo impede uma avaliação clara de limitações e vantagens e, afinal, da sustentabilidade do sistema de biodiesel da Jatropha. A produção sustentável de energia corresponde a vários critérios e a sua ponderação deve incluir a análise ambiental de ciclo de vida. Este estudo pretende discernir, de modo genérico, o balanço ambiental, as fases de produção com maior impacto e as opções de produção com menor impacto do sistema de produção de biodiesel a partir de Jatropha. O estudo foi feito com base nas normas ISO14040 a 43. Os dados foram reunidos a partir de literatura e questionários enviados a investidores relevantes. A análise de impacte ambiental recorreu à ferramenta informática SimaPro®, com os métodos IMPACT2002+ e Ecoindicator99. A base de comparação é o sistema fóssil equivalente. Ambos os métodos apontaram para poupanças nas emissões de gases com efeito-estufa e de clorofluorocarbonetos e eficiência energética melhorada. Os potenciais de eutrofização e acidificação sofrem um agravamento. Os fertilizantes utilizados no cultivo constituem os principais responsáveis pelos impactes negativos. Os créditos provenientes do uso dos subprodutos dependem da categoria ambiental e do próprio uso. Porém, usar o bagaço das sementes como vector energético confere vantagem ao sistema. Pelo contrário, incluir passos adicionais de transporte na cadeia do biodiesel é desvantajoso. As conclusões são, todavia, restringidas pelas limitações inerentes à metodologia de análise de ciclo de vida. Além disso, o estado incipiente do desenvolvimento do sistema do biodiesel de Jatropha e do conhecimento envolvido dificultam a fiabilidade e aumentam a incerteza.
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Dalila, Augusto MUSSENGUE SAN. "Biodiesel Production from Jatropha and Waste Cooking Oils in Mozambique". Thesis, KTH, Skolan för industriell teknik och management (ITM), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-216984.

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Souza, Lívia Tereza de Andrade. "Síntese enzimática do biodiesel de Jatropha curcas pela rota etílica". Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/97/97137/tde-04102012-110800/.

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O esperado crescimento na demanda de biodiesel no mercado mundial tem impulsionado uma evolução constante em seu sistema de produção de forma a torná-lo mais eficiente e ambientalmente favorável. O presente trabalho teve como objetivo verificar o potencial do óleo de pinhão manso para obtenção de biodiesel pela via enzimática empregando etanol com agente acilante. Para alcançar o objetivo proposto, as atividades experimentais foram iniciadas pela adequação do óleo de pinhão manso bruto para sua utilização como matériaprima na reação de transesterificação, incluindo as etapas de degomagem, neutralização e secagem. O óleo tratado, após caracterização físico-química, foi utilizado nos testes de triagem do biocatalisador enzimático testando diferentes preparações de lipases (EC 3.1.1.3) tanto na forma livre como imobilizada em SiO2-PVA, para mediar à síntese de biodiesel em meio isento de solventes. Os testes indicaram que as lipases na forma imobilizada foram mais eficientes e permitiram selecionar os derivados imobilizados das lipases de Burkholderia cepacia e Pseudomonas fluorescens como as preparações mais adequadas para catalisar a síntese de biodiesel a partir do óleo de pinhão, com rendimentos reacionais de 93,18% e 85,67%, respectivamente. Na segunda etapa do trabalho, os derivados imobilizados selecionados foram testados na reação de interesse, mantendo-se fixa as condições reacionais (temperatura 45oC, 1:9 de razão molar óleo/etanol e 500 unidades de atividade lipolítica por grama de óleo), empregando reatores de vidro acoplados com condensador de refluxo, para evitar perda de etanol. O monitoramento da reação foi efetuado pela determinação dos ésteres etílicos formados (Cromatografia de fase gasosa) e viscosidade cinemática em amostras retiradas ao longo da reação. O produto transesterificado (biodiesel) foi purificado e submetido às análises para caracterização de suas propriedades físico-químicas, incluindo estudo reológico, espectroscopia de absorção na região do infravermelho (FTIR), análise termogravimétrica (TG) e ressonância magnética nuclear protônica (1H-RMN). Os resultados obtidos permitiram confirmar que a lipase de Burkholderia cepacia foi a preparação de lipase mais eficiente para mediar à síntese do biodiesel do óleo de pinhão manso, alcançando rendimento de transesterificação superior a 97% (72h). O biodiesel produzido manteve-se estável termicamente até 128oC e não sendo constatada contaminação do produto com glicerol ou água residual, assegurando a eficiência da etapa de purificação do produto transesterificado. Experimentos adicionais foram ainda efetuados sob irradiação de micro-ondas e os resultados obtidos indicaram que o aquecimento por micro-ondas constitui um procedimento potencial para a produção de biodiesel, tendo em vista a considerável redução do tempo global de reação. A estabilidade operacional da lipase imobilizada foi determinada em bateladas consecutivas sob aquecimento convencional e irradiação de micro-ondas, revelando um tempo de meia-vida do biocatalisador de 110 e 26,5h, respectivamente. A real contribuição da aceleração da reação por meio de irradiação de micro-ondas deverá ser reavaliada levando em consideração a acentuada perda da atividade sintética do biocatalisador.
The expected increase in the biodiesel demand worldwide has brought a constant evolution in its production system in order to make it more efficient and environmentally favorable. The objective of present work was to verify the potential of Jatropha oil as raw material to produce biodiesel by enzymatic route using ethanol as acilant agent. To attain the proposed objective, the experimental activities were starting by treating the oil to attain suitable properties to be used in the transesterification reaction, including the degumming, neutralization and drying steps. The treated oil, after physico-chemical characterization was used to carry out a screening test to select the most suitable biocatalyst by means of testing different preparations of lipases (EC 3.1.1.3) in free form as well as immobilized in SiO2-PVA, to mediate the biodiesel synthesis in solvent free system. The assays indicated that the immobilized lipases were more efficient than free ones and allowed selecting the immobilized derivatives from Burkholderia cepacia and Pseudomonas fluorescens as the most suitable preparations to catalyze biodiesel synthesis from Jatropha oil, attaining yields of 93.18% and 85.67%, respectively. In the second step, the selected immobilized derivatives were used to catalyze the reaction of interest maintaining the previous set conditions (temperature 45oC, 1:9 molar ratio oil/ethanol and 500 units of lipolytic activity per gram of oil) using a glass reactor coupled with condenser to avoid ethanol loss. The reaction was monitored by determining the formed ethyl esters by gas chromatography and viscosity in samples taken from the reactor during the reaction. The transesterified product (biodiesel) was purified and submitted to further analyses for physico-chemical properties, including rheological study, FTIR, TG and 1H NMR. The obtained results confirmed that the lipase from Burkholderia cepacia was the most efficient biocatalyst to mediate the biodiesel synthesis from Jatropha oil, attaining transesterification yields higher than 97% (72h. The product biodiesel was thermo stable up to 128oC and no residual glycerol or water contaminations were detected, assuring the efficiency of the down stream process. Additional experiments were performed under microwave irradiation and the results suggested that the microwave heating constitutes a potential procedure to enhance the reaction rate by reducing the global reaction time. The operational stability of the immobilized lipase was determined in repeated batch runs under conventional and microwave heating systems, revealing biocatalyst half-life time of 110 and 26.5 h, respectively. Therefore, the real contribution of the microwave irradiations to enhance the reaction should be revalued by taking into account the lost of the biocatalyst activity.
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Zanon, Natalia Barboza [UNESP]. "Análise econômica e de investimento da cultura do pinhão manso (Jatropha curcas L.)". Universidade Estadual Paulista (UNESP), 2012. http://hdl.handle.net/11449/124427.

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A busca por sistemas sustentáveis somada à gradual redução das reservas de petróleo, alternativas produtivas vêm sendo estudadas, visando obter sistemas economicamente viáveis, socialmente justos, ecologicamente adequados e energicamente equilibrados. Uma destas alternativas é o biodiesel, sendo que, o pinhão manso, dentre as culturas energéticas apontadas com grande potencial produtivo de óleo para fins combustíveis, é que apresenta cenário mais positivo. O Pinhão Manso tem despertado muito interesse a nível internacional e no Brasil por seu alto conteúdo de óleo (38 a 48% na semente) e baixo custo de produção, entretanto existe ainda falta de informação tecnológica, tanto agronômica como genética. Esta falta de informação limita o aumento de competitividade. O presente trabalho tem como objetivo central realizar uma análise econômica e de investimentosna cultura do Pinhão Manso, na região de Selvíria - MS. Os dados foram levantados a partir dos experimentos de campo, de entrevistas com técnicos e da literatura. Para o cálculo dos custos foi utilizada a estrutura do custo operacional total e estimados indicadores de lucratividade. Para análise de investimentos foram estimados o valor presente líquido, a taxa interna de retorno e o valor anual equivalente. Os resultados mostram que produtor recupera o capital investido no 9o ano de produção. Muito embora a relação B/C tenha sido de 1,3, o que pode considerar que, no horizonte de 15 anos, a atividade é rentável ao produtor, pode-se dizer que a atividade não é uma boa opção de investimento já que a TIR foi de 14,03%, valor esse pouco atrativo. O VAE total foi de 360,93, por se tratar de um valor maior que zero, afirma-se que a alternativa é economicamente viável. Apesar dos avanços no cultivo do pinhão manso ainda demandam muitas pesquisas, relacionadas não apenas a questões técnica como adubação e manejo fitossanitário, mas também...
The search for sustainable systems coupled with the gradual reduction of oil reserves, alternatives production are being studied in order to obtain systems economically viable, socially just, ecologically appropriate and energetically balanced. One of these alternatives is biodiesel, and, Jatropha, among energy crops with great potential productive oil for fuel, is presenting more positive scenario. The Jatropha has attracted much interest internationally and in Brazil for its high oil content (38 to 48% in the seed) and low production cost, however there is still a lack of technological information, both genetic and agronomic. This lack of information limits the increase of competitiveness. The present study aims to conduct an economic and investment analysis of Jatropha in the region of Selvíria - MS. The data were collected from the field experiments, interviews with experts and literature. To calculate the costs was used the structure of total operating cost and estimated profitability indicators. For investment analysis were estimated net present value, internal rate of return and the annual value equivalent. The results show that producer retrieves the capital invested in the 9th year of production. Although the ratio B / C was of 1.3, which may consider that in the 15-year horizon, the activity is profitable to the producer, it can be said that the activity is not a good investment option since the IRR was of 14.03%, a value unattractive. The total EAV was 360.93, because it is a positive value it is stated that the alternative is economically viable. Despite advances in the cultivation of Jatropha still require much research, not only related to technical issues such as fertilization and pest management, but also socioeconomic
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Zanon, Natalia Barboza. "Análise econômica e de investimento da cultura do pinhão manso (Jatropha curcas L.)". Ilha Solteira, 2012. http://hdl.handle.net/11449/124427.

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Orientador: Maria Aparecida Anselmo Tarsitano
Banca: Silvia Maria Almeida L. Costa
Banca: Neli Cristina Belmiro dos Santos
Resumo: A busca por sistemas sustentáveis somada à gradual redução das reservas de petróleo, alternativas produtivas vêm sendo estudadas, visando obter sistemas economicamente viáveis, socialmente justos, ecologicamente adequados e energicamente equilibrados. Uma destas alternativas é o biodiesel, sendo que, o pinhão manso, dentre as culturas energéticas apontadas com grande potencial produtivo de óleo para fins combustíveis, é que apresenta cenário mais positivo. O Pinhão Manso tem despertado muito interesse a nível internacional e no Brasil por seu alto conteúdo de óleo (38 a 48% na semente) e baixo custo de produção, entretanto existe ainda falta de informação tecnológica, tanto agronômica como genética. Esta falta de informação limita o aumento de competitividade. O presente trabalho tem como objetivo central realizar uma análise econômica e de investimentosna cultura do Pinhão Manso, na região de Selvíria - MS. Os dados foram levantados a partir dos experimentos de campo, de entrevistas com técnicos e da literatura. Para o cálculo dos custos foi utilizada a estrutura do custo operacional total e estimados indicadores de lucratividade. Para análise de investimentos foram estimados o valor presente líquido, a taxa interna de retorno e o valor anual equivalente. Os resultados mostram que produtor recupera o capital investido no 9o ano de produção. Muito embora a relação B/C tenha sido de 1,3, o que pode considerar que, no horizonte de 15 anos, a atividade é rentável ao produtor, pode-se dizer que a atividade não é uma boa opção de investimento já que a TIR foi de 14,03%, valor esse pouco atrativo. O VAE total foi de 360,93, por se tratar de um valor maior que zero, afirma-se que a alternativa é economicamente viável. Apesar dos avanços no cultivo do pinhão manso ainda demandam muitas pesquisas, relacionadas não apenas a questões técnica como adubação e manejo fitossanitário, mas também...
Abstract: The search for sustainable systems coupled with the gradual reduction of oil reserves, alternatives production are being studied in order to obtain systems economically viable, socially just, ecologically appropriate and energetically balanced. One of these alternatives is biodiesel, and, Jatropha, among energy crops with great potential productive oil for fuel, is presenting more positive scenario. The Jatropha has attracted much interest internationally and in Brazil for its high oil content (38 to 48% in the seed) and low production cost, however there is still a lack of technological information, both genetic and agronomic. This lack of information limits the increase of competitiveness. The present study aims to conduct an economic and investment analysis of Jatropha in the region of Selvíria - MS. The data were collected from the field experiments, interviews with experts and literature. To calculate the costs was used the structure of total operating cost and estimated profitability indicators. For investment analysis were estimated net present value, internal rate of return and the annual value equivalent. The results show that producer retrieves the capital invested in the 9th year of production. Although the ratio B / C was of 1.3, which may consider that in the 15-year horizon, the activity is profitable to the producer, it can be said that the activity is not a good investment option since the IRR was of 14.03%, a value unattractive. The total EAV was 360.93, because it is a positive value it is stated that the alternative is economically viable. Despite advances in the cultivation of Jatropha still require much research, not only related to technical issues such as fertilization and pest management, but also socioeconomic
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Freitas, Ricardo Galvão de. "Avaliação e seleção de genótipos de Jatropha curcas L". Universidade Federal de Viçosa, 2015. http://www.locus.ufv.br/handle/123456789/6800.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico
Jatropha curcas L. é uma das oleaginosas mais promissoras para a produção de biodiesel e bioquerosene. Por ser um cultivo perene ainda incipiente, a avaliação da produtividade é importante para o seu melhoramento genético. As estimativas de parâmetros genéticos são importantes para a caracterização da estrutura genética da população, para o entendimento genético dos caracteres e para a predição dos ganhos com seleção. O presente estudo avaliou o potencial de produtividade de 78 acessos (assumidos como famílias de meios irmãos) de J. curcas, com 48 e 60 meses, em dois anos de produção (2012/13 e 2013/14). O ensaio foi instalado em Araponga (latitude 20o 39’ S, longitude 42o 32’ W e altitude 823 m), MG, em quatro experimentos, todos em blocos casualizados com quatro repetições e parcelas de quatro plantas, utilizando o espaçamento 2x2m, e duas testemunhas comuns aos experimentos, totalizando 1376 plantas. Os caracteres avaliados foram produtividade de frutos (PF), de grãos (PG) e de óleo (PO), em kg.ha-1, teor de óleo da semente (TO), em %, peso de 50 frutos (P50F) e 100 sementes (P100S), em g, comprimento (CF) e largura (LF) do fruto, e comprimento (CS) e largura (LS) da semente, em mm. Processou-se a estimação de parâmetros genéticos e a predição dos ganhos genéticos com a seleção de indivíduos e clones. Para as produtividades e teor de óleo, os resultados evidenciaram a existência de variabilidade genética entre as famílias e herdabilidades individuais de moderada a média magnitude, entre 0,19 e 0,51, adequadas para a seleção da principal característica a ser explorada, PO (0,50). Com base nos valores de repetibilidade ( > 0,60) dos caracteres PG e PO, duas medições ou colheitas consecutivas são suficientes, uma vez que as famílias mantiveram seus desempenhos relativos ao longo dos dois anos. A seleção, pelo valor genotípico, das 20 plantas superiores quanto à produtividade de óleo proporcionou ganho médio de 162,7%, superior à seleção de plantas pelos valores genéticos aditivos (157%), indicando maiores possibilidades de sucesso com a implantação de plantios clonais.
Jatropha curcas L. is one of the most promising oilseed for the production of biodiesel and bio-kerosene. For being an incipient perennial crop, evaluating productivity is important for your breeding. Estimates of genetic parameters are important for the characterization of the genetic structure of the population to the genetic understanding of the characters and for the prediction of gains from selection. This study evaluated the 78 accessions productivity potential (assumed to families half-sib) of J. curcas, with 48 and 60 months, two years of production (2012/13 and 2013/14). The experiment was conducted in Araponga (latitude 20o 39 'S, longitude 42o 32' W and altitude 823 m), MG, in four trials, all randomized blocks with four replicates and four plants per plot, using the spacing 2x2m, and two common checks to the experiments, totaling 1376 plants. The characters evaluated were fruit yield (PF), grains (PG) and oil (PO), in kg ha-1, seed oil content (TO), in%, weight of 50 fruits (P50F) and 100 seeds (P100S) in g, length (FL) and width (LF) of the fruit, and length (CS) and width (LS) seed, in mm. Was estimated genetic parameters and prediction of genetic gain with selection of individuals and clones. For the yield and oil content, the results showed the existence of genetic variability between individual families and heritability of moderate to medium magnitude, between 0.19 and 0.51, suitable for selecting the main feature to be explored, PO ( 0.50). Based on the repeatability values (> 0.60) for the PG and PO characteristics , two consecutive measurements or harvests are sufficient, since the families retained their relative performances throughout the two years. The selection by the genotypic value, the top 20 plants on the oil yield provided average gain of 162.7%, higher than the plant selection by additive genetic values (157%), indicating greater chances of success with the implementation of clonal plantations .
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Santana, Ulisses Andrade. "Estudo dialélico para caracteres agronômicos em pinhão-manso (Jatropha curcas L.)". Pós-Graduação em Agroecossistemas, 2013. https://ri.ufs.br/handle/riufs/6590.

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The physic nut (Jatropha curcas L.) is oilseed species belonging to Euphorbiaceae family with a widespread distribution in tropical regions. The quality and high oil content in seeds, perenicity and rusticity makes this species a potential feedstock for biodiesel production. However, the success of this insertion involves research ranging from the exploration of divergent genetic materials to selection and acquisition of productive cultivars. In this context, this study aimed to assess the combining ability of jatropha access for agronomic traits of interest, as well as information about genetic parameters associated with morphological and agronomic characters, and investigate their correlations. The study was carried out in the Experimental Farm of the UFS during the year 2012 in hybrids of jatropha evaluated up to 24 months. The experimental design was in randomized blocks with three replications and plots with six plants. There were evaluated seed yield (PR), plant height (PH), number of secondary branches (NRS), the number of female flowers (NFF), stem diameter (DC), 100-seed weight (P100 ), branching height (AR) and crown diameter (DCO). The general combining ability (GCA) was significant for the variables PR, DC, NRS and AR (Group 1) and P100 and NRS (Group 2), whereas specific combining ability (SCA) was significant for variables NFF and NRS. The sum of squares due to GCA was higher than the sum of squares due to SCA for the majority of traits, indicating that the additive effects of loci are more important than the dominance effect loci. The genitors JCUFS-04 and JCUFS-05 highlight from the others for concentration of favorable alleles. The consistent estimation of the coefficient of genetic variation allows us to infer the existence of significant genetic variability among hybrids. The characters which more contributed to genetic diversity were NFF (20.99%), DC (16.83%), PR (15.06%), and NRS (14.06). High, significance and positive genotypic correlations were recorded among (NRS), (DC), (DCO) and grain yield (PR).
O pinhão-manso (Jatropha curcas L.) é uma espécie oleaginosa da família Euphorbiaceae com ampla distribuição em regiões tropicais. A qualidade de óleo e alto teor nas sementes, perenicidade e rusticidade fazem desta espécie uma matéria-prima potencial para produção de biodiesel. Todavia, o sucesso desta inserção passa por pesquisas que vão desde a prospecção de materiais genéticos divergentes, até a seleção e obtenção de cultivares produtivos. Nesse contexto, esse trabalho teve por objetivo avaliar a capacidade combinatória de acessos de pinhão-manso, para caracteres de interesse agronômico, bem como, obter informações acerca de parâmetros genéticos associados a caracteres morfo-agronômicos, e investigar a correlação entre estes. O trabalho foi realizado na Fazenda experimental da UFS durante o ano de 2012 em híbridos de pinhão-manso avaliados até os 24 meses de idade. O delineamento experimental empregado foi em blocos casualizados com três repetições e parcelas compostas por seis plantas. Os caracteres avaliados foram rendimento de sementes (PR), altura de planta (AP), número de ramos secundários (NRS), número de flores femininas do racemo floral (NFF), diâmetro de caule (DC), massa de 100 sementes (P100), altura de ramificação (AR) e diâmetro de copa (DCO). A capacidade geral de combinação (CGC) foi significativa para as variáveis PR, DC, NRS e AR (Grupo 1) e para P100 e NRS (Grupo 2), enquanto a capacidade específica de combinação (CEC) foi significativa para as variáveis NFF e NRS. A soma de quadrados devido à CGC foi maior que a soma de quadrados devido à CEC para a maioria dos caracteres, indicando que os locos de efeito aditivo têm maior importância que os locos de efeito dominante. Os genitores JCUFS-04 e JCUFS-05 se destacaram dos demais quanto à concentração de alelos favoráveis. As estimativas consistentes dos coeficientes de variação genética permitem inferir sobre a existência de variabilidade genética significativa entre os híbridos obtidos. Os caracteres que mais contribuíram para a diversidade genética encontrada entre a populações foram, NFF (20,99%), DC (16,83%), PR (15,06%) e NRS (14,06). Altas e significativas correlações genotípicas positivas foram registradas entre (NRS), (DC), (DCO) e o rendimento de grãos (PR).
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Shah, Mohibullah. "Análise proteômica de desenvolvimento de sementes Jatropha curcas L". reponame:Repositório Institucional da UFC, 2014. http://www.repositorio.ufc.br/handle/riufc/14935.

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SHAH, M. Análise proteômica de desenvolvimento de sementes Jatropha curcas L. 2014. 169 f. Tese (Doutorado em Bioquímica) - Centro de Ciências, Universidade Federal do Ceará, Fortaleza, 2014.
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Physic nut (Jatropha curcas L.) is an important crop due to its ability of storing high content of oil in the seeds, which can serve as raw material for biodiesel production. Because of the presence of toxic constituents like phorbol esters (PEs) and curcins, the seed cake produced as a result of oil extraction cannot be utilize for animal feed. Development of the genotypes better suited for the industrial applications and biodiesel production as well as with lower level of toxic constituents is being hampered by a lack of understanding about the a) proteins related to the biosynthesis and degradation of fatty acids (FAs) and triacylglycerides (TAGs), b) role of proteins deposited during seed development and c) proteins related to the synthesis and storage of toxic compounds during seed development. Agreeing with this, we have performed the anatomical analysis of the developing seeds of J. curcas, followed by the proteome analysis of the endosperm isolated from the seeds of J. curcas at five different developmental stages, which resulted into the identification of the 1517, 1256, 1033, 752 and 307 proteins, from Stage 6, 7, 8, 9 and 10, respectively, summing up to a total of 1760 proteins. Proteins with similar expression pattern were grouped into five different clusters and protein quantification based on spectral counts was determined. Besides identification of the proteins involved in the biosynthesis and degradation of the FAs and TAGs, we also identified a large number of proteins involved in the metabolism of the carbohydrates, which are important for supplying energy and carbon source for the synthesis of TAGs in heterotrophic seeds. Among the members of different classes of seed storage proteins (SSPs), we have identified four SSPs named as nutrients reservoir, which in contrast to the other SSPs showed decreasing deposition pattern during seeds development and revealed to have special role during seed development. In addition, peptidases belong to different mechanistic classes were identified, which have a range of functions, highlighting the role in reserve mobilization during germination. Isoforms of curcin were also identified in this proteome analysis which were absent in our previous proteome analysis of the other tissues from these seeds, suggesting that the deposition of these toxic proteins only occur in the endosperm. Similarly, several enzymes involved in the biosynthesis of diterpenoid precursors were identified in this proteome analysis but, like in our previous proteome analysis of the other tissues from J. curcas seeds,we were unable to identify any terpene synthase/cyclase, enzymes responsible for the synthesis of PEs, which collectively suggesting that the synthesis of PEs may not occur in seeds of this plant. In conclusion, the strategy used here enabled us to provide a first in depth proteome analysis of the endosperm from J. curcas developing seeds, which along with providing information regarding important aspects of the seed development, also set the foundation of a proteomic approach to study biotechnologically important plant species.
Pinhão manso (Jatropha curcas L.) é uma cultura importante devido à sua habilidade em armazenar alto conteúdo de óleo nas sementes, as quais podem servir como matéria-prima para a produção de biodiesel. Devido à presença de constituintes tóxicos como ésteres de forbol e curcina, a torta da semente produzida como resultado da extração do óleo não pode ser utilizada na alimentação animal. O desenvolvimento de genótipos mais adequados a aplicações industriais e à produção de biodiesel assim como apresentando baixos níveis de constituintes tóxicos está sendo prejudicado pela falta de entendimento sobre a) proteínas relacionadas a biossíntese e degradação de ácidos graxos e triacilgliceróis, b) o papel de proteínas depositadas durante o desenvolvimento da semente e c) proteínas relacionadas à síntese e reserva de compostos tóxicos durante o desenvolvimento da semente. Diante disso, nós realizamos uma análise anatômica de sementes em desenvolvimento de J. curcas, seguido por uma análise proteômica do endosperma isolado de sementes dessa espécie em cinco diferentes estágios de desenvolvimento, o que resultou na identificação de 1517, 1256, 1033, 752 e 307 proteínas, dos estágios 6, 7, 8, 9 e 10, respectivamente, somando um total de 1760 proteínas. Proteínas com padrão de expressão similar foram agrupadas em cinco grupos diferentes e a quantificação das proteínas baseada na contagem dos espectros foi determinada. Além da identificação das proteínas envolvidas na biossíntese e degradação de FAs e TAGs, nós identificamos um grande número de proteínas envolvidas no metabolismo de carboidratos, as quais são importantes para o fornecimento de energia e fontes de carbono para a síntese de TAGs em sementes heterotróficas. Entre os membros de diferentes classes de proteínas de reservas de sementes (SSPs), nós identificamos quatro SSPs denominadas reservatórios de sementes, que em contraste as outras SSPs mostraram decréscimo no padrão de deposição e revelaram ter um papel especial durante o desenvolvimento da semente. Em adição, peptidases pertencentes a diferentes classes mecanísticas foram identificadas destacando o papel da mobilização de reservas durante a germinação. Isoformas da curcina ausentes em nossas análises proteômicas prévias de outros tecidos da semente foram identificadas sugerindo que a deposição dessas proteínas tóxicas só ocorre no endosperma. Similarmente, várias enzimas envolvidas na biosíntese de precursores de diterpenóides foram identificadas nessa análise proteômica, mas como em nossas prévias análises proteômicas de outros tecidos de sementes de J. curcas, nós não fomos capazes de identificar sintases/ciclases de terpenos, enzimas responsáveis pela síntese de PEs, o que coletivamente sugere que a síntese desses compostos pode não ocorrer nas sementes dessa planta. Em conclusão, a estratégia utilizada nos fornece a primeira análise proteômica profunda do endosperma de sementes em desenvolvimento de J. curcas, o que além de fornecer informações sobre aspectos importantes do desenvolvimento da semente, também estabelece a base para uma pesquisa proteômica com o objetivo de estudar espécies vegetais importantes biotecnologicamente.
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Gaur, Sarthak. "Development and evaluation of an effective process for the recovery of oil and detoxification of meal from jatropha curcas". Diss., Rolla, Mo. : Missouri University of Science and Technology, 2009. http://scholarsmine.mst.edu/thesis/pdf/Gaur_09007dcc806c289e.pdf.

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Thesis (M.S.)--Missouri University of Science and Technology, 2009.
Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed August 31, 2009) Includes bibliographical references (p. 51-56).
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Książki na temat "JATROPHA BIODIESEL"

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Jatropha: Potential ethnomedicinal, stress resistant biodiesel plant. Jaipur: Aavishkar Publishers, Distributors, 2010.

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Mohammad, Arif. Bio-diesel: Jatropha curcas (a promising source). Delhi, India: Satish Serial Pub. House, 2009.

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1972-, Wu Weiguang, i Huang Jikun, red. Wo guo xi nan di qu sheng wu chai you yuan liao ma feng shu fa zhan qian li yan jiu. Beijing Shi: Zhongguo nong ye chu ban she, 2010.

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National Workshop on Institutional, Environmental, Economical, Technological, and Legal Issues Related to Production Possibilities of Bio-Diesel from Jatropha curcas (Ratanjot) & Pongamia pinnata (Karanja) (2006 Amity Jaipur Campus). National Workshop on Institutional, Environmental, Economical, Technological, and Legal Issues Related to Production Possibilities of Bio-Diesel from Jatropha curcas (Ratanjot) & Pongamia pinnata (Karanja), on 2nd-4th May, 2006 at Amity Jaipur Campus, Rajasthan: Proceedings. Noida: Amity School of Natural Resources & Sustainable Development, 2006.

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Prana, Made Sri. Budi daya jarak pagar (Jatropha curcas L.): Sumber biodiesel : menunjang ketahanan energi nasional. Jakarta: Lembaga Ilmu Pengetahuan Indonesia, Pusat Penelitian Bioteknologi, 2006.

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K, Dadhich Pradeep, i Energy and Resources Institute, red. Production and technology of bio-diesel: Seeding a change. New Delhi: The Energy and Resources Institute, 2008.

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Lele, Satish. Biodiesel and Jatropha Cultivation. Agrobios (India), 2006.

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Timilsina, Govinda R., i Ujjal Tiwari. The Economic Viability of Jatropha Biodiesel in Nepal. The World Bank, 2015. http://dx.doi.org/10.1596/1813-9450-7295.

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Jatropha curcas as biodiesel feedstocks / Erliza Hamba ... [et al.]. Jakarta: The National Team for Biofuel Development for Accelerating Poverty Alleviation and Job Creation, 2007.

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Boccanfuso, Dorothée, Massa Coulibaly, Govinda R. Timilsina i Luc Savard. Macroeconomic and Distributional Impacts of Jatropha-Based Biodiesel in Mali. The World Bank, 2013. http://dx.doi.org/10.1596/1813-9450-6500.

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Części książek na temat "JATROPHA BIODIESEL"

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Heikal, Ebtisam K., Salah A. Khalil i Ismaeil K. Abdou. "Biodiesel from Jatropha Oil". W Renewable Energy in the Service of Mankind Vol I, 39–46. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-17777-9_4.

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Chakrabarti, P. P., i R. B. N. Prasad. "Biodiesel Production from Jatropha curcas Oil". W Jatropha, Challenges for a New Energy Crop, 463–90. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-4806-8_25.

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Nazir, Novizar, Djumali Mangunwidjaja i M. A. Yarmo. "Production of Biodiesel and Nontoxic Jatropha Seedcakes from Jatropha curcas". W Advanced Biofuels and Bioproducts, 525–51. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-3348-4_23.

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de Lima, Ana Lúcia, i Claudio J. A. Mota. "Biodiesel: A Survey on Production Methods and Catalysts". W Jatropha, Challenges for a New Energy Crop, 475–91. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-3104-6_23.

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Dash, S. K., S. B. Chavan, A. Kumar, M. S. Ahamed i P. Lingfa. "Jatropha Biodiesel Blends as Renewable Diesel Fuel Additives". W Bioresource Utilization and Bioprocess, 93–105. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-1607-8_11.

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Wang, Zanxin. "Producing Jatropha Biodiesel in China: Policies, Performance and Challenges". W Jatropha, Challenges for a New Energy Crop, 95–121. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-4806-8_6.

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Lee, Keat Teong, i Steven Lim. "The In Situ Biodiesel Production and Its Applicability to Jatropha". W Jatropha, Challenges for a New Energy Crop, 537–56. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-4806-8_28.

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Saranya, G., i T. V. Ramachandra. "Carbon Footprint Assessment of Palm, Jatropha, and Microalgal Biodiesel". W Carbon Footprints of Manufacturing and Transportation Industries, 25–46. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-7226-3_2.

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Abioye, O. P., U. J. J. Ijah i S. A. Aransiola. "Phytoremediation of Soil Contaminants by the Biodiesel Plant Jatropha curcas". W Phytoremediation Potential of Bioenergy Plants, 97–137. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-3084-0_4.

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Wang, Zanxin. "A Cost-Benefit Analysis of Jatropha Biodiesel Production in China". W Cost-Benefit Studies of Natural Resource Management in Southeast Asia, 49–67. Singapore: Springer Singapore, 2015. http://dx.doi.org/10.1007/978-981-287-393-4_3.

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Streszczenia konferencji na temat "JATROPHA BIODIESEL"

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Suryawanshi, J. G., i N. V. Deshpande. "Experimental Investigations on a Jatropha Oil Methyl Ester Fuelled Diesel Engine". W ASME 2005 Internal Combustion Engine Division Spring Technical Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/ices2005-1040.

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Biodiesel is a non-toxic, biodegradable and renewable fuel with the potential to reduce engine exhaust emissions. The methyl ester of jatropha oil, known as biodiesel, is receiving increasing attention as an alternative fuel for diesel engines. The biodiesel is obtained through transesterification process. Various properties of the biodiesel thus developed are evaluated and compared in relation to that of conventional diesel oil. In the present investigation neat jatropha oil methyl ester (JME) as well as the blends of varying proportions of jatropha oil methyl ester (JME) and diesel were used to run a CI engine. A four stroke diesel engine having compression ratio of 17.5: 1 and developing 5.2 kW at 1500 rpm was used. Experiments were initially carried out on the engine at all loads using diesel to provide baseline data. Significant improvements in engine performance and emission characteristics were observed for JME fuel. The addition of jatropha methyl ester (JME) to diesel fuel has significantly reduced HC, CO, CO2 and smoke emissions but it increases the NOx emission slightly. The maximum reduction in smoke emission was observed by 35% in case of neat biodiesel operation as compared to diesel. The unburned hydrocarbon emission was drastically reduced by 53% for neat biodiesel operation.
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Kumar, R., M. Sharma, S. S. Ray, A. S. Sarpal, A. A. Gupta, D. K. Tull, R. Sarin, R. P. Verma i N. R. Raje. "Biodiesel From Jatropha curcas and Pongamia Pinnata". W SIAT 2004. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2004. http://dx.doi.org/10.4271/2004-28-0087.

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Kelkar, Kshitij, Cibi selvam Mathialaghan i Kamalkishore vora. "Process Parameter for Biodiesel Production - Jatropha Curcas". W 8th SAEINDIA International Mobility Conference & Exposition and Commercial Vehicle Engineering Congress 2013 (SIMCOMVEC). 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2013. http://dx.doi.org/10.4271/2013-01-2890.

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Jain, Darshan, Saravanan Kumarasamy i K. C. Vora. "Parametric Optimization for Biodiesel Production from Jatropha Curcus". W Symposium on International Automotive Technology 2015. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2015. http://dx.doi.org/10.4271/2015-26-0047.

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Ofori-Boateng, Cynthia, i Keat Teong Lee. "Feasibility of Jatropha Oil for Biodiesel: Economic Analysis". W World Renewable Energy Congress – Sweden, 8–13 May, 2011, Linköping, Sweden. Linköping University Electronic Press, 2011. http://dx.doi.org/10.3384/ecp11057463.

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Ganapathy, T., S. E. Arthiya i K. Murugesan. "Performance optimization of Jatropha biodiesel engine using RSM". W NATIONAL CONFERENCE ON ENERGY AND CHEMICALS FROM BIOMASS (NCECB). AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0005668.

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Choudhury, S., i P. K. Bose. "Jatropha derived Biodiesel – its suitability as CI engine fuel". W Fifth International SAE India Mobility Conference on Emerging Automotive Technologies Global and Indian Perspective. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2008. http://dx.doi.org/10.4271/2008-28-0040.

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Khan, M. Bilal, Ali Bahadar, Waqas Anjum, L. T. Handoko i Masbah R. T. Siregar. "Production of Biodiesel from Jatropha Curcas using Nano Materials". W INTERNATIONAL WORKSHOP ON ADVANCED MATERIAL FOR NEW AND RENEWABLE ENERGY. AIP, 2009. http://dx.doi.org/10.1063/1.3243252.

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Thangaraja, J., K. Anand i Pramod S. Mehta. "Experimental Investigations on Combustion, Performance and Emission Characteristics of Neat Jatropha Biodiesel and its Methanol Blend in a Diesel Engine". W ASME 2012 Internal Combustion Engine Division Fall Technical Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/icef2012-92041.

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While engines fueled with neat or blended biodiesel have favorable combustion-emission profile in terms of carbon monoxide, particulate matter and unburned hydrocarbons emissions, they are reported to have higher NOx emissions as compared to petro-diesel. On the other hand, use of alcohols especially methanol, though limited in diesel engines, is found to decrease engine exhaust emissions including smoke and NOx emissions. The present experimental investigation evaluates the use of biodiesel-methanol blend in mitigating higher NOx emissions in biodiesel fuelled engines along with its effect on other engine performance conditions. The experimental results obtained for a blend of 90% Jatropha methyl ester and 10% methanol (J90M10) and neat Jatropha methyl ester (J100) by varying engine output load at maximum torque speed of 1400 rpm are analyzed and discussed in this paper. The experimental results at full load operation for J90M10 blend compared with neat J100 indicate a reduction in exhaust nitric oxide and smoke concentrations by 28% and 50% respectively along with a reduction of 2% in peak pressure and 0.5% in brake thermal efficiency. Also, a marginal retard in injection timing and a higher ignition delay period is observed with Jatropha methyl ester -methanol blend operation.
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Gangwar, Harish Kumar, i Avinash Kumar Agarwal. "Emission and Combustion Characteristics of Biodiesel (Jatropha Curcas) Blends in a Medium Duty IDI Transportation Engine". W ASME 2007 Internal Combustion Engine Division Fall Technical Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/icef2007-1684.

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Vegetable oils, due to their agricultural origin, are able to reduce net carbon-di-oxide emissions to the atmosphere along with import substitution of petroleum products. However, several operational and durability problems in using straight vegetable oils as CI engine fuels are reported in the literature, which are because of their higher viscosity and low volatility compared to mineral diesel. In the present research, experiment were designed to study the effect of lowering Jatropha oil’s viscosity by transesterification and thereby eliminating adverse effects on combustion characteristics of the engine. In the present experimental research, Jatropha methyl ester is produced by transesterification of jatropha oil using methanol in presence of basic catalyst (Sodium hydroxide). Experimental investigations have been carried out to examine the combustion characteristics of in an indirect injection (IDI) transportation diesel engine running with diesel, biodiesel and its blends with diesel. Engine tests were performed at different engine loads ranging from no load to rated (100%) load at fixed engine speed (2000 rpm). A careful analysis of cylinder pressure rise, instantaneous heat release and cumulative heat release was carried out. All test fuels exhibited similar combustion stages as diesel however biodiesel and its blends showed earlier start of combustion and lower heat release during premixed combustion phase at all engine load. Maximum cylinder pressure reduces as the fraction of biodiesel increases in the blend and at higher engine loads, the crank angle position of peak cylinder pressure for biodiesel blends shifted away from top dead center. The maximum rate of pressure rise was found to be higher for diesel at higher engine loads however total combustion duration was higher for biodiesel blends.
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Raporty organizacyjne na temat "JATROPHA BIODIESEL"

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Whitaker, M., i G. Heath. Life-Cycle Assessment of the Use of Jatropha Biodiesel in Indian Locomotives (Revised). Office of Scientific and Technical Information (OSTI), marzec 2009. http://dx.doi.org/10.2172/950146.

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Whitaker, M., i G. Heath. Life Cycle Assessment Comparing the Use of Jatropha Biodiesel in the Indian Road and Rail Sectors. Office of Scientific and Technical Information (OSTI), maj 2010. http://dx.doi.org/10.2172/979832.

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Tomomatsu, Y., i B. Swallow. Jatropha curcas biodiesel production in Kenya: economics and potential value chain development for smallholder farmers ICRAF Working Paper no. 54. World Agroforestry Centre (ICRAF), 2007. http://dx.doi.org/10.5716/wp15396.pdf.

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