Relevant bibliographies by topics / Lignite Indonesia

Academic literature on the topic 'Lignite Indonesia'

Author: Grafiati
Published: 10 December 2022
Last updated: 29 January 2023

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Journal articles on the topic "Lignite Indonesia"

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Liu, Ming Qiang, Jian Zhong Liu, Yu Jie Yu, Zhi Hua Wang, Jun Hu Zhou, and Ke Fa Cen. "Investigation of Lignite Combustion Characteristics with Thermal Analysis." Advanced Materials Research 614-615 (December 2012): 25–30. http://dx.doi.org/10.4028/www.scientific.net/amr.614-615.25.

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Combustion characteristics of three types of lignite (coming from Indonesia, Ximeng, Hami), and a bituminous coal from Shenfu were studied by thermogravimetric analysis (TGA). Combustion parameters including characteristic temperatures, maximum rate of combustion, combustion performance index and activation energy of samples were analyzed. Kinetic parameters of samples were calculated using Jander model. The results showed that the characteristic temperatures of lignite samples are lower than that of bituminous coal. Indonesian lignite has the best combustion performance and the lowest activation energy. It indicates that high quality lignite such as Indonesian lignite has good combustion performance, even better than some bituminous coal, which makes it possible to use lignite by bulk combustion.
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Hamdani, Ahmad Helman, and Agus Didit Haryanto. "The Spontaneous Combustion Potency of Lignite Coal Based on FTIR." European Journal of Environment and Earth Sciences 3, no. 5 (October 5, 2022): 37–40. http://dx.doi.org/10.24018/ejgeo.2022.3.5.326.

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To understand the role of functional groups in the spontaneous combustion of lignite coal, the distribution of functional groups in the lignite coal of the Sajau Formation in the Berau Basin, Indonesia, was studied. The functional group characterization was carried out using the Fourier Transform Infra Red (FTIR) method. The results revealed the presence of four functional groups, namely hydroxyl structures, aliphatic structures, oxygen-containing structures, and aromatic structures. The lignite contained more hydroxyl and oxygen-bearing functional groups, from which aliphatic and aromatic; therefore, spontaneous combustion becomes easy in lignite coal.
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Zhao, Zhen Ning, and Qin Feng Zhang. "Burning Blended Coal of Indonesia Lignite and Vietnam Anthracite on a Face-Fired 600MW Boiler Original Designed for Bituminous Coal." Advanced Materials Research 347-353 (October 2011): 167–73. http://dx.doi.org/10.4028/www.scientific.net/amr.347-353.167.

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Elemental research of burning blended coal of Indonesia Lignite and Vietnam anthracite on a face-fired 600MW supercritical boiler is performed, which is original designed for burning high-quality bituminous coal. Maximum ratio of Vietnam anthracite can be 40 percent. With the increase of the ratio of the anthracite, the size of residue particles and the ratio of unburned carbon in residues (UBCRs) rise up markedly, the slag formation of Indonesia Lignite alleviate. The results reveal: the burnout of anthracite is more difficult than its ignition, the key way to solve this problem is to control Fineness of Pulverized Coal Powder (FPCP) of the blended coal according requirements of anthracite, but to control the Primary Air (PA) outlet temperature of mill and the mass ratio of PA to coal as flammable coal Lignite. Besides, Secondary Air (SA) Distribution mode of Centralized Oxygen Feeding(COF), Big Swirl Intensity also have obvious effects the combustion of blended coal.
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Mar, K. K., D. Karnawati, Sarto, D. P. E. Putra, T. Igarashi, and C. B. Tabelin. "Comparison of Arsenic Adsorption on Lignite, Bentonite, Shale, and Iron Sand from Indonesia." Procedia Earth and Planetary Science 6 (2013): 242–50. http://dx.doi.org/10.1016/j.proeps.2013.01.033.

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Efendi, M. Ade Andriansyah, N. Nurhadi, and P. Phiciato. "The effects of hydrothermal dewatering on Indonesia lignite characteristics for fixed-bed gasification." International Journal of Coal Preparation and Utilization 40, no. 2 (November 20, 2017): 146–54. http://dx.doi.org/10.1080/19392699.2017.1383245.

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Gantina, T. M., P. Iriani, and A. S. Kurniasetiawati. "The potential of liquid fuel production from lignite using bio-solubilization method in Indonesia." IOP Conference Series: Materials Science and Engineering 830 (May 19, 2020): 022021. http://dx.doi.org/10.1088/1757-899x/830/2/022021.

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Julismi, Rusdianasari, and Abu Hasan. "Syngas Underground Coal Gasification (UCG) Testing of In-Situ Type Lignite Coal and Fracture Type Coal." International Journal of Research in Vocational Studies (IJRVOCAS) 1, no. 2 (September 22, 2021): 67–78. http://dx.doi.org/10.53893/ijrvocas.v1i2.42.

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The advancement and utilization of technology require energy, namely electricity and fuel energy. The increasing cost of fossil energy, the scarcity of non-renewable energy sources and the increasing energy demand requires diversification of energy resources. One of the new renewable energy sources currently being developed in Indonesia is Underground Coal Gasification (UCG). UCG is a new technology that utilizes unmined coal. In the UCG process, coal is burned underground and the syngas produced is collected through bore wells for processing or direct use. The resulting syngas is analyzed to see the effect of in-situ type of lignite coal and fractured type of coal on syngas production using the UCG method. Tests carried out on fracture-type lignite coal for 120 minutes with a sample weight of 1.3 kg obtained a CH4 gas concentration of 0.24%, which is relatively low compared to the in-situ type lignite coal sample CH4 gas concentration of 1.13%. The CO2 concentration was 54.46% in the fracture sample, and the In-Situ type sample was 52.19%. The O2 content with a value of 19.43% for the Fracture Type sample and 4.94% for the In-Situ type sample. Fracture Type and In-situ Lignite Coal produced fewer syngas products due to UCG testing than high-rank coals such as sub-bituminous and bituminous coal.
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Stankiewicz, B. Artur, Michael A. Kruge, and Maria Mastalerz. "A geochemical study of macerals from a Miocene lignite and an Eocene bituminous coal, Indonesia." Organic Geochemistry 24, no. 5 (May 1996): 531–45. http://dx.doi.org/10.1016/0146-6380(96)00038-1.

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Puteri, Gina Chynthia Kamarudin, Roni Ridwan, and Ellin Harlia. "Ecological Diversity of Microbial Consortium Feces of Beef Cattle and Lignite Coal." HAYATI Journal of Biosciences 27, no. 3 (July 1, 2020): 180. http://dx.doi.org/10.4308/hjb.27.3.180.

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Increasing energy demand is not alongside the availability of limited fossil fuels. Alternative and renewable energy sources are not only an option to overcome energy problems but also essential to minimize global warming. Another critical and promising renewable energy source is biomass-derived from livestock feces. Beef cattle feces contain a microorganism consortium that can be used as a starter with coal media to form biogas. Indonesia recently developed coal waste processing into renewable energy, such as biogas. This study aimed to overview the ecological diversity of microbial consortium of beef cattle feces, lignite coal waste, and a combination of livestock and lignite coal waste under mesophilic conditions. This research is an explorative method, the data obtained were analyzed descriptively. The process of formation was carried out anaerobically on a bottle containing the rumen fluid medium. The fermentation process lasted 42 days at 39℃ of temperature. After that, the sample was electrophoresis, followed by next-generation sequencing (NGS) method. NGS data is processed with the MG-Rast website. This study demonstrates the ecological diversity of microbial consortium of beef cattle, lignite coal waste, and a combined consortium. The results showed ecological diversity in the form of taxonomy dominated by bacteria, eukaryotes, and archaea.
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Nurrahman, Arif, Edwin Permana, Diah Riski Gusti, and Intan Lestari. "Pengaruh Konsentrasi Aktivator Terhadap Kualitas Karbon Aktif dari Batubara Lignit." Jurnal Daur Lingkungan 4, no. 2 (September 28, 2021): 44. http://dx.doi.org/10.33087/daurling.v4i2.86.

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Activated carbon has been widely used in everyday life. One of them is in water purification. Materials for making activated carbon have been made and researched. Coal is one of the materials that can be processed into activated carbon. The availability of coal in Indonesia is quite abundant and has the potential to be used as activated carbon. The coal used is lignite. This coal is categorized as light coal where its use is only used as fuel in industry. It is hoped that the activated carbon from this coal will become an alternative source of coal use in Indonesia. Activated carbon from coal uses a variable concentration of 0.5 M, 1 M, 1.5 M, 2 M, 2.5 M, 3 M with HCL activator solution. It is hoped that the results of this study are in accordance with the quality standard of SNI 06-3730-1995.
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Dissertations / Theses on the topic "Lignite Indonesia"

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Remond, Emilie. "L'ouverture en question : quand des universités ouvertes se redéfinissent à l'ère de la globalisation numérique." Thesis, Valenciennes, 2017. http://www.theses.fr/2017VALE0039/document.

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Cette thèse se propose d’étudier les mutations engendrées par la globalisation numérique au sein de dispositifs de formation à distance. Elle s’intéresse au cas spécifique des universités ouvertes dans plusieurs pays. Ces systèmes, qui permettent généralement l’accès aux études à distance et sans condition spécifique d’admission, diffusent de façon massive des programmes d’enseignement. Majoritairement présentes en Asie, elles se sont implantées dans de nombreux pays, en particulier dans le Commonwealth. Le cas des universités ouvertes permet ainsi d’adopter une perspective comparative, sur des terrains habituellement peu fréquentés par la recherche francophone. À travers l’analyse d’entretiens confrontés à des discours institutionnels, la thèse s’appuie sur une méthodologie permettant de qualifier la transition numérique au sein de huit universités ouvertes du monde, en Afrique, en Europe et en Asie. Elle propose un modèle de compréhension des mutations subies dans ces organisations distancielles dans une perspective globale (MOTION). Ce modèle permet de décrire un système dans sa dynamique d’évolution et d’anticiper les évolutions futures
This thesis explores the variations of digital globalization within distance-learning systems. It studies the specific case of open universities in different countries. These systems, which generally provide access to post-secondary education with no prior requirement for admissions, develop educational programs on a massive scale. These programs, located in many countries, are predominantly active in Asia and most particularly in the Commonwealth. This example allows us to adopt a comparative perspective in an area that is not typically explored through Francophone research. Through the analysis of interviews contrasted to institutional discourses, the thesis presents a methodology qualifying the digital transition in eight open universities of the world: Africa, Europe and Asia. It proposes a model for understanding the transformations experienced in these distance-learning organizations within a global perspective (MOTION). This model provides a description of the dynamics within a system’s evolution process and anticipate future evolutions
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Books on the topic "Lignite Indonesia"

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Sangyōshō, Japan Keizai. Project assistance for private initiative infrastructure project in developing countries in fiscal year 2005: Feasibility study of environmentally friendly 1200 MW lignite fired minemouth power plant in South Sumatra, Indonesia : report. Tokyo]: Ministry of Economy, Trade and Industry, 2006.

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Coal, Lignite The, Lignite The Coal, and Peat Research Group. The 2000 Import and Export Market for Coal, Lignite, and Peat in Indonesia (World Trade Report). 2nd ed. Icon Group International, 2001.

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Lignite The Coke And Semi-Coke Of, Peat Research Group, The Coke, and Lignite Semi-Coke of Coal. The 2000 Import and Export Market for Coke and Semi-coke of Coal, Lignite and Peat in Indonesia (World Trade Report). 2nd ed. Icon Group International, 2001.

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Peat And Lignite Bri The Coal, Solid Fuels Research Group, and Ovoids Lignite Briquettes. The 2000 Import and Export Market for Coal, Peat and Lignite Briquettes, Ovoids and Solid Fuels in Indonesia (World Trade Report). 2nd ed. Icon Group International, 2001.

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Lignite The Coke And Semi-Coke Of, The Coke, Lignite, Peat Semi-Coke of Coal, and Briquettes Research Group. The 2000 Import and Export Market for Coke and Semi-coke of Coal, Lignite, Peat and Briquettes in Indonesia (World Trade Report). 2nd ed. Icon Group International, 2001.

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Book chapters on the topic "Lignite Indonesia"

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Kang, TaeJin, DoMan Jeon, Hueon Namkung, DongHa Jang, Youngshin Jeon, and Hyungtaek Kim. "Drying Kinetics Characteristic of Indonesia Lignite Coal (IBC) Using Lab Scale Fixed Bed Reactor." In Cleaner Combustion and Sustainable World, 239–44. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-30445-3_36.

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Meng, Liu, Xu Chao, Li Jian, and Duan Yufeng. "Physicochemical Properties and Pyrolysis Characteristics of Indonesian Lignite Upgraded by Organic Solvent." In Clean Coal Technology and Sustainable Development, 23–29. Singapore: Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-2023-0_3.

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Zain, Mardiati, Rusmana Wijaya Setia Ningrat, Heni Suryani, and Novirman Jamarun. "Effect of Various Feed Additives on the Methane Emissions from Beef Cattle Based on an Ammoniated Palm Frond Feeds." In Animal Feed Science and Nutrition - Health and Environment [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.100142.

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Methane gas has a very significant contribution to the increase in greenhouse gases (GHG) globally. The livestock sector, especially ruminants, causes the issue of increasing GHG concentrations. The chapter presents the issue of reducing methane gas production from cattle. Various experiments to reduce methane gas production from ruminants have been carried out and have shown varying results. This series of results of the author\'s research on reducing methane gas production in livestock in beef cattle based on agriculture by-product to animal feed is addressed with this background. Agriculture by-products such as oil palm fronds and rice straw can be used to feed beef cattle in Indonesia. However, agriculture by-product as animal feed can reduce feed efficiency and increase methane gas production due to the high lignin content. Therefore, various alternatives are carried out to optimize the utilization of this plantation waste. One of them is the use of feed additives and methanogenesis inhibitors. The author\'s series of research using feed additives (direct-fed microbial) and various methanogenesis inhibitors (plant bioactive compounds and dietary lipids) were tested to determine their effect on nutrient digestibility and methane gas production in feed based on plantation waste. Experiments were carried out in vitro and in vivo on various types of ruminants. Plant bioactive compounds such as tannins are proven to reduce methane production through their ability to defaunate in the rumen. Tannins may also have direct effect on methanogens and indirectly by reducing fiber digestion. In addition, direct-fed microbial (DFM) feed additives such as Saccharomyces cerevisiae, Bacillus amyloliquifaciens, and Aspergillus oryzae can be used in ruminants to increase livestock productivity. Furthermore, virgin coconut oil as a dietary lipid contains medium-chain fatty acids, mainly lauric acid, which can inhibit the development of ciliates of protozoa and methanogenic bacteria that produce methane in the rumen.
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Bardant, Teuku Beuna, Heru Susanto, and Arief Amier Rahman Setiawan. "Lignin Utilization as a Wood Surface Coating and its Role in Feasibility Assessment of Lignocellulose-Based Bioethanol in Indonesia: a Cheminformatics Approach." In Chemical Technology and Informatics in Chemistry with Applications, 207–26. Apple Academic Press, 2019. http://dx.doi.org/10.1201/9781351247450-10.

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Conference papers on the topic "Lignite Indonesia"

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Sari, I. P., E. Saepudin, and Y. K. Krisnandi. "Effect of temperature in depolymerization of lignin from oil palm empty bunches over NiO/HY zeolite catalyst." In THE 8TH INTERNATIONAL CONFERENCE OF THE INDONESIAN CHEMICAL SOCIETY (ICICS) 2019. AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0001093.

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Atikah, Okta L., Laily F. Pelawi, Bertha V. Wihelmina, Wahyu H. Ibrahim, and Firsty A. Aribah. "The Isolation of Lignin from Coconut Fiber as Bioadsorbent of Cr(III) in Lake of University of Indonesia." In the 2017 International Conference. New York, New York, USA: ACM Press, 2017. http://dx.doi.org/10.1145/3155077.3155086.

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Acosta, Elias R., Bhagwanpersad Nandlal, and Ryan Harripersad. "SATURATION EXPONENT AS A FUNCTION OF RESERVOIR HETEROGENEITY AND WETTABILITY IN THE TAMBAREDJO OIL FIELD, SURINAME." In 2021 SPWLA 62nd Annual Logging Symposium Online. Society of Petrophysicists and Well Log Analysts, 2021. http://dx.doi.org/10.30632/spwla-2021-0118.

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This research proposed an alternative method for determining the saturation exponent (n) by finding the best correlations for the heterogeneity index using available core data and considering wettability changes. The log curves of the variable n were estimated, and the effect on the water saturation (Sw) calculations and the Stock Tank Oil Initially In Place (STOIIP) in the Tambaredjo (TAM) oil field was analyzed. Core data were employed to obtain the relationship between n and heterogeneity using cross-plots against several heterogeneity indices, reservoir properties, and pore throat size. After filtering the data, the clay volume (Vcl), shale volume, silt volume, basic petrophysical property index (BPPI), net reservoir index, pore grain volume ratio, and rock texture were defined as the best matches. Their modified/improved equations were applied to the log data and evaluated. The n related to Vcl was the best selection based on the criteria of depth variations and logical responses to the lithology. The Sw model in this field showed certain log readings (high resistivity [Rt] reading ≥ 500 ohm.m) that infer these intervals to be probable inverse-wet (oil-wet). The cross-plots (Rt vs. Vcl; Rt vs. density [RHOB]; Rt vs. total porosity [PHIT]) were used to discard the lithologies related to a high Rt (e.g., lignites and calcareous rocks) and to correct Sw when these resulted in values below the estimated irreducible water saturation (Swir). The Sw calculations using the Indonesian equation were updated to incorporate n as a variable (log curves), comparing it with Sw from the core data and previous calculations using a fixed average value (n = 1.82) from the core data. An integrated approach was used to determine n, which is related to the reservoir’s heterogeneity and wettability changes. The values of n for high Rt (n > 2) intervals ranged from 2.3 to 8.5, which is not close to the field average n value (1.82). Specific correlations were found by discriminating Swir (Swir < 15%), (Swir 15%–19%), and Swir (> 19%). The results showed that using n as a variable parameter improved Sw from 39.5% to 36.5% average in the T1 and T2 sands, showing a better fit than the core data average and increasing the STOIIP estimations by 6.81%. This represents now a primary oil recovery of 12.1%, closer to the expected value for these reservoirs. Although many studies have been done on n determination and its effect on Sw calculations, using average values over a whole field is still a common practice regardless of heterogeneity and wettability considerations. This study proposed a method to include the formation of heterogeneity and wettability changes in n determination, allowing a more reliable Sw determination as demonstrated in the TAM oil field in Suriname.
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