Relevant bibliographies by topics / Renewable methane generation

Academic literature on the topic 'Renewable methane generation'

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

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Journal articles on the topic "Renewable methane generation"

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Steinlechner, Christoph, and Henrik Junge. "Renewable Methane Generation from Carbon Dioxide and Sunlight." Angewandte Chemie International Edition 57, no. 1 (November 24, 2017): 44–45. http://dx.doi.org/10.1002/anie.201709032.

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Lo Basso, Gianluigi, Lorenzo Mario Pastore, and Livio de Santoli. "Power-to-Methane to Integrate Renewable Generation in Urban Energy Districts." Energies 15, no. 23 (December 2, 2022): 9150. http://dx.doi.org/10.3390/en15239150.

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The deployment of distributed energy systems must take place paying attention to the self-consumption of renewable generation. Innovative sector coupling strategies can play that role linking local electricity and gas grids. The present work aims to evaluate the energy and economic feasibility of the Power-to-Methane strategy application in urban energy districts. A residential cluster was considered as a case study. Two PV configurations have been applied to evaluate the Substitute Natural Gas (SNG) production under different renewable excess conditions. Thereafter, the Power-to-Methane strategy was implemented by varying the system’s size. Some significant configurations have been compared to each other in terms of energy and economics. Beyond a certain threshold limit, an increase in the photovoltaic size slightly enhances the effectively self-consumed energy. The Power-to-Methane strategy can exploit all the renewable excess once the system is properly sized, almost doubling the potential energy consumption reduction compared to the PV system alone. The SNG production cost is between 100 and 200 EUR/MWh in most configurations, which is competitive with the high natural gas prices on the European market. Therefore, decentralised SNG production can reduce the households’ annual expenditures and it can mitigate the energy poverty conditions over the current energy crisis period.
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Vujic, Goran, Nebojsa Jovicic, Maja Petrovic-Djurovic, Dejan Ubavin, Branka Nakomcic, Gordana Jovicic, and Dusan Gordic. "Influence of ambience temperature and operational-constructive parameters on landfill gas generation: Case study Novi Sad." Thermal Science 14, no. 2 (2010): 555–64. http://dx.doi.org/10.2298/tsci1002555v.

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Researches in the area of landfill gas generation and energy utilization are currently underway and widespread in the world for several reasons: reducing effects of greenhouse gases, possibilities for utilizing alternative energy sources, reducing conventional energy resources exploitation, and environmental protection. First part of this research is conducted with an aim to establish the influence of meteorological parameters, primarily ambience temperature, on the methane generation processes at Novi Sad landfill. The second part of the research refers to functional characteristics of landfill such as the waste age, closing practice, and the age of certain parts of landfill body, as well as the waste depth and quantity of generated methane. Based on several years of investigation, it is concluded that methane generation varies in the range of 0-34 vol.% m3/m3, and that seasonal variations have significant influence on methane generation. At low temperatures, during winter, methane generation and migration is stagnant while in summer periods, due to higher temperatures, the process of methane generation is more intensive.
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Klimenko, V. M., and T. T. Suprun. "METHANATION TECHNOLOGIES FOR PRODUCING SYNTHETIC RENEWABLE METHANE." Thermophysics and Thermal Power Engineering 46, no. 3 (July 22, 2022): 63–72. http://dx.doi.org/10.31472/ttpe.3.2022.6.

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Methanation, or the generation of synthetic methane through the combination of carbon dioxide and hydrogen, has been attracting more and more attention of researchers and energy scientists in recent years due to the fact that the development of an effective and economically feasible technology for the implementation of this process will allow solving a number of energy and environmental problems. First, it is the accumulation of excess renewable electricity from solar and wind power plants by using it in the creation of another energy-intensive product, namely synthetic natural gas, which removes the problem of coordinating unstable sources of electricity with energy networks. Secondly, methanation becomes another technology for enriching biogas and turning it into biomethane, which will allow it to be used through existing gas networks and contribute to solving the problem of natural gas shortage. The development and improvement of methanation technologies are engaged in many organizations of the world - Germany, Denmark, France, the USA, Japan and others. Research is conducted in two main directions: catalytic methanation and biological methanation. In the first direction, methanation is carried out through the Sabatier reaction using catalysts. The problems of such methanation are: the development of catalysts with high activity, selectivity and resistance to the heat of reaction, the provision of optimal reaction modes, in particular temperature and pressure, through the use of various methods of reactor cooling, control of the reaction mechanism, the use of three-phase reactors, changing their structure, and so on. Biological methanation is carried out using of biological methanogens - so-called archaea, which act as a kind of catalyst. The methanation is carried out either directly in the biomass anaerobic digestion reactor (in-situ methanation) or in a separate reactor into which biogas and hydrogen are fed separately (ex-situ methanation). One of the main problems of in-situ methanation is the simultaneous provision of optimal conditions for both acetoclastic and hydrogenotrophic methanogens. This problem is solved by ex-situ methanation, in which the optimal conditions for anaerobic digestion and methanation processes are provided separately. It is clear that optimal conditions are also provided for biomethanation of pure CO2 and H2, when the «broth» for archaea is created separately. A comparison of catalytic and biological methanation technologies shows that catalytic methanation provides higher energy efficiency and requires much smaller reactor sizes than biological methanation for the same methane yield. However, the latter has a higher resistance to harmful impurities than the catalytic one.
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Younas, T., M. Taha, S. F. Ehtesham, and M. F. Siddiqui. "Biogas Generation Using Kitchen Waste." E3S Web of Conferences 51 (2018): 01002. http://dx.doi.org/10.1051/e3scconf/20185101002.

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The previous years has been very crucial for the whole world so in Pakistan. This situation arise due to shocking increment in the rates of oil. In order to overcome this issue most of the countries are working for the development of technology using renewable resources. These resources include solar, wind and biomass. Biomass includes cow dung, kitchen waste, wood etc. The geographical location of Pakistan is a best suit for biomass energy operation. Among these biomasses this paper will be focusing on the kitchen waste which will result in around 60% of methane gas, 30% will include carbon dioxide, 8% nitrogen and rest 1 to 2 % of hydrogen sulphide. This paper will state the best possible option to perform anaerobic digestion process in order to generate excess amount of biogas at homes. It will also discuss procedure for the removal of toxic gases which exist in biogas and can be harmful for humans as well as it degrade biogas quality. In our research, the generation of biogas and methane is done from the sugary and starch-rich material and is determined at small scale using the elementary digesters.
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Younas, T., M. Taha, S. F. Ehtesham, and M. F. Siddiqui. "Biogas Generation Using Kitchen Waste." E3S Web of Conferences 51 (2018): 01002. http://dx.doi.org/10.1051/e3sconf/20185101002.

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The previous years has been very crucial for the whole world so in Pakistan. This situation arise due to shocking increment in the rates of oil. In order to overcome this issue most of the countries are working for the development of technology using renewable resources. These resources include solar, wind and biomass. Biomass includes cow dung, kitchen waste, wood etc. The geographical location of Pakistan is a best suit for biomass energy operation. Among these biomasses this paper will be focusing on the kitchen waste which will result in around 60% of methane gas, 30% will include carbon dioxide, 8% nitrogen and rest 1 to 2 % of hydrogen sulphide. This paper will state the best possible option to perform anaerobic digestion process in order to generate excess amount of biogas at homes. It will also discuss procedure for the removal of toxic gases which exist in biogas and can be harmful for humans as well as it degrade biogas quality. In our research, the generation of biogas and methane is done from the sugary and starch-rich material and is determined at small scale using the elementary digesters.
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Chagas Bezerra, Francisco Edmar, and Auzuir Ripardo De Alexandria. "Biomethane Generation Produced in Municipal Landfill." International Journal for Innovation Education and Research 8, no. 12 (December 11, 2020): 01–21. http://dx.doi.org/10.31686/ijier.vol8.iss12.2644.

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Biogas emerged as a renewable technology that converts waste organic matter into energy. Among its components, in terms of energy, methane is the most important chemical composition, particularly for the combustion process in vehicle engines. The use of methane derived from organic matter residues in landfills to replace fossil fuel minimizes the environmental impact, providing a significant reduction in the emission of greenhouse effect gases,as does the use of the amount of urban waste generated by the population in a planned way, with a specific technological focus at the forefront of generating solutions for ecological, social, economic and management challenges, which are themes that characterize smart cities. Thus, this study is based on the investigation and analysis of the potential of biogas generated by the theMunicipal Landfill West of Caucaia (MLWC - AterroSanitário Municipal Oeste de Caucaia/CE (ASMOC))with the objective of estimating the amount of methane gas produced in the referred landfill, based on data already published related to the amount of solid waste disposed at the landfill and applying it in the Biogas - Energy Generation and Use Aterro(version 1.0) software, developed by the Environmental Company of the State of São Paulo (ECSSP - Companhia Ambiental do Estado de São Paulo (CETESB)).As main outcomes, it was found that the landfill can generate, between the years 2018 to 2034, more than 3 million m³of CH4, capable of supplying more than 201,362 vehicles fuel.
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Banihabib, Reyhaneh, and Mohsen Assadi. "A Hydrogen-Fueled Micro Gas Turbine Unit for Carbon-Free Heat and Power Generation." Sustainability 14, no. 20 (October 16, 2022): 13305. http://dx.doi.org/10.3390/su142013305.

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The energy transition with transformation into predominantly renewable sources requires technology development to secure power production at all times, despite the intermittent nature of the renewables. Micro gas turbines (MGTs) are small heat and power generation units with fast startup and load-following capability and are thereby suitable backup for the future’s decentralized power generation systems. Due to MGTs’ fuel flexibility, a range of fuels from high-heat to low-heat content could be utilized, with different greenhouse gas generation. Developing micro gas turbines that can operate with carbon-free fuels will guarantee carbon-free power production with zero CO2 emission and will contribute to the alleviation of the global warming problem. In this paper, the redevelopment of a standard 100-kW micro gas turbine to run with methane/hydrogen blended fuel is presented. Enabling micro gas turbines to run with hydrogen blended fuels has been pursued by researchers for decades. The first micro gas turbine running with pure hydrogen was developed in Stavanger, Norway, and launched in May 2022. This was achieved through a collaboration between the University of Stavanger (UiS) and the German Aerospace Centre (DLR). This paper provides an overview of the project and reports the experimental results from the engine operating with methane/hydrogen blended fuel, with various hydrogen content up to 100%. During the development process, the MGT’s original combustor was replaced with an innovative design to deal with the challenges of burning hydrogen. The fuel train was replaced with a mixing unit, new fuel valves, and an additional controller that enables the required energy input to maintain the maximum power output, independent of the fuel blend specification. This paper presents the test rig setup and the preliminary results of the test campaign, which verifies the capability of the MGT unit to support intermittent renewable generation with minimum greenhouse gas production. Results from the MGT operating with blended methane/hydrogen fuel are provided in the paper. The hydrogen content varied from 50% to 100% (volume-based) and power outputs between 35kW to 100kW were tested. The modifications of the engine, mainly the new combustor, fuel train, valve settings, and controller, resulted in a stable operation of the MGT with NOx emissions below the allowed limits. Running the engine with pure hydrogen at full load has resulted in less than 25 ppm of NOx emissions, with zero carbon-based greenhouse gas production.
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Taghinazhad, Jabraeil, Reza Abdi, and Mehrdad Adl. "Kinetic and Enhancement of Biogas Production For The Purpose of Renewable Fuel Generation by Co-digestion of Cow Manure and Corn Straw in A Pilot Scale CSTR System." International Journal of Renewable Energy Development 6, no. 1 (March 22, 2017): 37–44. http://dx.doi.org/10.14710/ijred.6.1.37-44.

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Biogas production from anaerobic co-digestion of cow manure (CM) and corn straw residue (CSR) were experimentally investigated using a completely stirred tank reactor (CSTR) under semi- continuously feeding circumstance at mesophilic (35°C±2) temperature. The pilot-scale digester with 180 L in volume was employed under experimental protocol to examine the effect of the change in organic loading rate on efficiency of biogas production and to report on its steady-state performance. An average organic loading rates of 2 and 3 kg VS. (m-3.d-1) and a hydraulic retention time (HRT) of 25 days was examined with respect to two different CM to CSR mixing ratios of 100:0 , 75:25 and 50:50, respectively. The results showed both organic loading rates at co-digestion of CM+ CSR gave better methane yields than single digestion of cow manure. The biogas production efficiency was obtained 0.242, 0.204, 0.311 0.296, 259.5 and 235 m3.(kg VS input)-1 for 2 and 3 kg VS.(m-3.d-1) at CM to CSR mixing ratios of100:0 , 75:25 and 50:50, respectively. The reactor showed stable performance with VS reduction between 55-74% during different runs. With increment of loading rate, the VS degradation and biogas yield decreased. Modified Gompertz and logistic plot equation was employed to model the methane production at different organic loading rates and substrate concentrations. The equations gave a good approximation of the maximum methane production (rm) and the methane yield potential (P) with correlation coefficient (R2) over 0.99.Article History: Received Oct 25th 2016; Received in revised form Dec 19th 2016; Accepted 2nd January 2017; Available onlineHow to Cite This Article: Taghinazhad. J., Abdi, R. and Adl, M. (2017). Kinetic and Enhancement of Biogas Production for the purpose of renewable fuel generation by Co-digestion of Cow Manure and Corn Straw in a Pilot Scale CSTR System. Int Journal of Renewable Energy Development, 6(1),37-44http://dx.doi.org/10.14710/ ijred.6.1.37-44
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Abdullah, Taufik, Nur Rosman Hidayat, and Hijriati Sholehah. "The Potential of Methane Gas as an Alternative Energy Source in Kebon Kongok Landfill." Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan 17, no. 3 (November 25, 2020): 334–43. http://dx.doi.org/10.14710/presipitasi.v17i3.334-343.

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Waste management in West Nusa Tenggara Provincial Government focuses on two main things, namely the reduction and handling and providing of TPA which is still operated with an open dumping system. Application of an open system in TPA will cause many problems, including air pollution by methane gas and the greenhouse effect. This study aims to determine the potential methane gas content of the Kebon Kongok landfill as an alternative energy source by modelling using LandGEM. The data in this study consisted of the year of the TPA operation plan and the annual data on the waste generation of TPA. The results showed that the potential content of methane gas was 12,999,633.62 m3/year, or equivalent to 14,520.88 MWh/year, in the form of gas as much as 9,966.38 Megagrams of LPG/ year. Therefore, the Kebon Kongok TPA has the potential to be used as a power plant fuelled by methane gas and facilitates electricity connections for the surrounding community because when compared to other existing renewable energy plants in the Lombok Electricity System, the capacity of 1.66 Megawatts was already equivalent to the power generation capacity which are already operating commercially.
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Dissertations / Theses on the topic "Renewable methane generation"

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Real, Daniel Jordan. "Renewable Electricity Generation via Solar-Powered Methanol Reforming: Hybrid Proton Exchange Membrane Fuel Cell Systems Based on Novel Non-Concentrating, Intermediate-Temperature Solar Collectors." Diss., 2015. http://hdl.handle.net/10161/11388.

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Tremendous research efforts have been conducted studying the capturing and conversion of solar energy. Solar thermal power systems offer a compelling opportunity for renewable energy utilization with high efficiencies and excellent cost-effectiveness. The goal of this work was to design a non-concentrating collector capable of reaching temperatures above 250 °C, use this collector to power methanol steam reforming, and operate a proton exchange membrane (PEM) fuel cell using the generated hydrogen. The study presents the construction and characterization of a non-concentrating, intermediate-temperature, fin-in-tube evacuated solar collector, made of copper and capable of reaching stagnation temperatures of 268.5 °C at 1000 W/m2 irradiance. The collector was used to power methanol steam reforming, including the initial heating and vaporization of liquid reactants and the final heating of the gaseous reactants. A preferential oxidation (PROX) catalyst was used to remove CO from simulated reformate gas, and this product gas was used to operate a PEM fuel cell. The results show 1) that the outlet temperature is not limited by heat transfer from the absorber coating to the heat transfer fluid, but by the amount of solar energy absorbed. This implicates a constant heat flux description of the heat transfer process and allows for the usage of materials with lower thermal conductivity than copper. 2) It is possible to operate a PEM fuel cell from reformate gas if a PROX catalyst is used to remove CO from the gas. 3) The performance of the fuel cell is only slightly decreased (~4%) by CO2 dilution present in the reformate and PROX gas. These results provide a foundation for the first renewable electricity generation via solar-powered methanol reforming through a hybrid PEM fuel cell system based on novel non-concentrating, intermediate-temperature solar collectors.


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Book chapters on the topic "Renewable methane generation"

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Papadopoulou, Christina, Haris Matralis, and Xenophon Verykios. "Utilization of Biogas as a Renewable Carbon Source: Dry Reforming of Methane." In Catalysis for Alternative Energy Generation, 57–127. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-0344-9_3.

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Cassim, Shaakirah, and Shehzaad Kauchali. "Minimising CO2 Emissions from Coal Gasification." In Recent Advances in Gasification Technologies [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.105587.

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Traditional coal-to-liquid processes use gasification with excess steam to obtain hydrogen-rich syngas for downstream manufacturing of methanol or Fischer-Tropsch liquids. Such processes are shown to produce very large amounts of CO2 directly by the Water-Gas-Shift (WGS) reaction or, indirectly, by combustion in raising steam. It is shown how any coal gasifier can operate under auto-thermal conditions with methane as source of hydrogen instead of steam. This co-gasification system produces syngas for a poly-generation facility while minimising the formation of process CO2. It is shown that minimal steam is required for the process and a limit on the maximum amount of H2:CO can be obtained. Co-gasification of coal is shown to have a major advantage in that a separate WGS reactor is not required, less CO2 is formed and methane is reformed non-catalytically within the gasification unit. Furthermore, regions of thermally balanced operations were identified that enabled a targeting approach for the design of co-gasification systems. The method will guide gasification practitioners to incorporate fossil fuels and renewable-H2 into coal-to-liquids processes that require syngas with H2:CO ratio of 2. An important result shows that low-grade coals can be co-gasified with methane to obtain CO2-free syngas ideal for power generation.
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Sholahuddin, Sholahuddin, Yoshitoshi Nakamura, and Chikako Asada. "Steam Explosion Pretreatment: Biomass Waste Utilization for Methane Production." In Biomass [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.102850.

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Lignocellulosic biomass as a second-generation biofuel resource such as waste from agricultural, forester industry, and unutilized wood and non-wood biomass was widely reported to use it as feedstock for methane production. As the carbon-neutral resources, biomass waste conversion for biofuel is in line with the SDGs 7 and 15 goal that can meet the needs and qualify to the standard of sustainable consumption and production pattern, and increasing the renewable energy. The wood and non-wood unutilized biomass and biomass waste are commonly faced with the recalcitrant character of the lignocellulose complex (LCC) which impacted the digestion process of the methane fermentation. Steam explosion pretreatment was enhanced the methane production by breaking the LCC into cellulose, hemicellulose, and lignin-derived product generated from the pretreatment process. Those steam-exploded products were reported effective in the conversion process into methane. The combination of steam explosion pretreatment which is an environmentally friendly pretreatment, and the use of carbon-neutral resources will provide the green biofuel which helps decrease the greenhouse gasses from the biomass waste dumping process and convert it into sustainable biofuel i.e. methane. This chapter will describe the steam explosion system development on the utilization of biomass for methane production, and the action of methane production enhancement.
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A. Adelodun, Adedeji, Temitope M. Olajire, and Ochuko Mary Ojo. "Biogas Generation from Co-Digestion Waste Systems: The Role of Water Hyacinth." In Sustainable Rural Development [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.101568.

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Using biomass as a renewable energy source has earned tremendous interest from researchers in recent decades, especially because the technology is environmentally benign. This article reviews the recent methods for generating biogas from water hyacinth (WH, Eichornia crassipes), arguably the world’s most evasive aquatic macrophyte. Therefore, various economic, environmentally benign, and renewable procedures that enhance biogas production from WH biomass are reviewed. WH has been co-digested with numerous waste types, including poultry droppings, municipal wastes, animal tissue wastes, pig wastes, cow dungs, etc., recording varying success degrees. Other studies focused on optimizing the operation parameters, such as mixing ratio, contact time, pH, temperature, organic loading rate, etc. We observed that most attempts to generate biogas from WH alone were not promising. However, when co-digested with other biomasses or wastes, WH either increases the process rate or improves the methane yield content. Also, the potential of WH as a phytoremdiator-cum-biogas source was investigated. This chapter provides mathematical models, scale-up installation models, and specific experimental results from various studies to guide future study plans toward optimizing CH4 generation from WH co-digestion.
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Louis de Almeida d’Avignon, Alexandre, and Gustavo Abreu Malaguti. "Biogas Generation from Bovine Confinement: An Energy Policy Option for Brazil." In Bovine Science - Challenges and Advances. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.99828.

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Brazil has the largest commercial beef herd in the world and is one of the most important players in the global agricultural market, notably for soybeans. Agriculture has an important demand for energy and emits significant quantities of greenhouse gases (GHG). To minimize the effects generated by livestock activities, from both the energetic and environmental perspectives, there exists the possibility of the use of biogas generated from beef cattle confinement. This productive system allows the reduction of methane emissions from enteric fermentation and from manure through the production of biogas. This has become an option for energy policy by contributing to the offer of energy and the reduction of the demand of agriculture for fossil fuels. With a renewable energy resource, the agricultural sector dependent on non-renewable resources, also reduces its dependence on exhaustible resources, so that a policy aimed at the use of biogas and partial energetic autonomy becomes strategic for the sector. The article analyses biogas production potential from waste throughout the entire beef production chain in more intensive systems (total or partial confinement of beef cattle). These solutions can contribute both to the offer of electric energy to the agricultural sector in the country, increasing its productivity, and to the reduction of greenhouse gases.
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Beschkov, Venko. "Biogas Production: Evaluation and Possible Applications." In Biogas [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.101544.

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Biogas is an excellent example of renewable feedstock for energy production enabling closure of the carbon cycle by photosynthesis of the existing vegetation, without charging the atmosphere with excessive carbon dioxide. The present review contains traditional as well as new methods for the preparation of raw materials for biogas production. These methods are compared by the biogas yield and biogas content with the possible applications. Various fields of biogas utilization are discussed. They are listed from simple heating, electricity production by co-generation, fuel cell applications to catalytic conversions for light fuel production by the Fischer-Tropsch process. The aspects of carbon dioxide recycling reaching methane production are considered too.
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Boveri, Alessandro, and Franco Porcellacchia. "An Innovative Cruise-Ship Onshore Power Supply Facility in the Port of Marseille." In Progress in Marine Science and Technology. IOS Press, 2022. http://dx.doi.org/10.3233/pmst220043.

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This paper proposes a summary of a preliminary technical economic study that has been promoted by the Gran Port Maritime de Marseille (GPMM) and Costa Crociere, which was focused on the possible integration of distributed renewable energy sources at port (i.e. mainly photovoltaic power generation). These were mainly aimed at powering two cruise ships connected at the port electric grid at the same time, by means of an innovative Onshore Power Supply (OPS) system. Going towards a net zero emission port, also the possible use of bio-methane (bioCH4), produced by means city waste in a site close to the port of Marseille, has been considered in the technical assessment as possible solution for powering a high temperature reversible fuel cell (revHTFC) capable of producing hydrogen or electricity, whether it is used as an electrolizer or as fuel cell, respectively.
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Lozano-Camargo, Maria Luisa, Laura Galicia-Luis, and Pablo Jesús Figueroa- Delgado. "Biogas Production, through low-cost tubular system for energy in the Tlalmanalco municipality." In CIERMMI Women in Science Engineering and Technology TXV, 1–9. ECORFAN, 2021. http://dx.doi.org/10.35429/h.2021.6.1.19.

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Biogas is a renewable biofuel product of anaerobic digestion, of the decomposition of organic matter (biomass) generating methane (CH4) with high energy value that represents 50 and 75% gas, it is an excellent ecological alternative in energy production, in order to take advantage of the biogas production from human and animals generated feces in the municipality of Tlalmanalco in the State of Mexico, a theoretical study was carried out in order to verify how feasible it is to implement a system of tubular biodigesters of low cost favoring the community with the lowest resources, as well as reducing the environmental impact of CO2 emissions.
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Conference papers on the topic "Renewable methane generation"

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Pospolita, Wojciech, Maciej Cholewiński, and Krzysztof Jesionek. "The Concept of Autonomous Instalation for Methane Generation Coupled with Renewable Energy Sources." In MultiScience - XXXI. microCAD International Multidisciplinary Scientific Conference. University of Miskolc, 2017. http://dx.doi.org/10.26649/musci.2017.068.

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Maier, Thomas R., and Ned J. Hardman. "The Next Generation of Carbon Black: Plasma Black from Renewable Energy and Methane." In 200th Fall Technical Meeting of the Rubber Division, American Chemical Society 2021. Akron, Ohio, USA: Rubber Division, American Chemical Society, 2021. http://dx.doi.org/10.52202/064426-0046.

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Jiang, Jun, Zhuowei Wang, Chaohai Zhang, Wanli Xu, and Yuan Feng. "Simultaneous Detection of Dissolved Methane and Ethane in Transformer Oil Based on Laser Raman Spectroscopy." In 2019 International Conference on Power Generation Systems and Renewable Energy Technologies (PGSRET). IEEE, 2019. http://dx.doi.org/10.1109/pgsret.2019.8882694.

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Laraib, Sajida Riffat, Qiang Lu, Suhaib Sajid, Zulfiqar Ali, and Tahir Iqbal. "Experimental Study on Ni/γ-Al2O3 and Its Modified Catalysts for Catalytic Steam Reforming of Methane." In 2018 International Conference on Power Generation Systems and Renewable Energy Technologies (PGSRET). IEEE, 2018. http://dx.doi.org/10.1109/pgsret.2018.8686013.

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Holton, Maclain M., Michael S. Klassen, Leo D. Eskin, Richard J. Joklik, and Richard J. Roby. "Low Emissions, Renewable, Dispatchable Power Generation Using Ethanol/Natural Gas Blends." In ASME 2014 Power Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/power2014-32114.

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Nearly all states now have renewable portfolio standards (RPS) requiring electricity suppliers to produce a certain fraction of their electricity using renewable sources. Many renewable energy technologies have been developed to contribute to RPS requirements, but these technologies lack the advantage of being a dispatchable source which would give a grid operator the ability to quickly augment power output on demand. Gas turbines burning biofuels can meet the need of being dispatchable while using renewable fuels. However, traditional combustion of liquid fuels would not meet the pollution levels of modern dry, low emission (DLE) gas turbines burning natural gas without extensive back-end clean-up. A Lean, Premixed, Prevaporized (LPP) combustion technology has been developed to vaporize liquid ethanol and blend it with natural gas creating a mixture which can be burned in practically any combustion device in place of ordinary natural gas. The LPP technology delivers a clean-burning gas which is able to fuel a gas turbine engine with no alterations made to the combustor hardware. Further, the fraction of ethanol blended in the LPP gas can be quickly modulated to maintain the supplier’s overall renewable quotient to balance fluctuations in power output of less reliable renewable power sources such as wind and solar. The LPP technology has successfully demonstrated over 1,000 hours of dispatchable power generation on a 30 kW Capstone C30 microturbine using vaporized liquid fuels. The full range of fuel mixtures ranging from 100% methane with no ethanol addition to 100% ethanol with no methane addition have been burned in the demonstration engine. Emissions from ethanol/natural gas mixtures have been comparable to baseline natural gas emissions of 3 ppm NOx and 30 ppm CO. Waste heat from the combustor exhaust is recovered in an indirect heat exchanger and is used to vaporize the ethanol as it is blended with natural gas. This design allows for startup on natural gas and blending of vaporized ethanol once the heat exchanger has reached its operating temperature.
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Mourhly, Asmaa, Mariam Khachani, Mohammed Kacimi, Mohammed Halim, and Said Arsalane. "A New Low-Cost Mesoporous Silica as a Promising Support of Ni-Catalysts for High-Hydrogen Generation via Dry Reforming of Methane." In 2017 International Renewable and Sustainable Energy Conference (IRSEC). IEEE, 2017. http://dx.doi.org/10.1109/irsec.2017.8477271.

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Khursheed, Aaiysha, George Simons, Brad Souza, and Jennifer Barnes. "Quantification of Greenhouse Gas Emission Reductions From California Self-Generation Incentive Program Projects." In ASME 2007 Power Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/power2007-22109.

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Over the past few decades, interest in the effects of greenhouse gas (GHG) emissions on global climate change has peaked. Increasing temperatures worldwide have been blamed for numerous negative impacts on agriculture, weather, forestry, marine ecosystems, and human health. The U.S. Environmental Protection Agency reports that the primary GHG emitted in the U.S. is carbon dioxide (CO2), most of which stems from fossil fuel combustion [1]. In fact, CO2 represents approximately 85% of all GHG emissions nationwide. The other primary GHGs include nitrous oxide (N2O), methane (CH4), ozone (O3), and fluorinated gases. Since the energy sector is responsible for a majority of the GHGs released into the atmosphere, policies that address their mitigation through the production of electricity using renewable fuels and distributed generation are of significant interest. Use of renewable fuels and clean technologies to meet energy demand instead of relying on traditional electrical grid systems is expected to result in fewer CO2 and CH4 emissions, hence reducing global climate change impacts. Technologies considered cleaner include photovoltaics, wind turbines, and combined heat and power (CHP) devices using microturbines or internal combustion engines. The Self-Generation Incentive Program (SGIP) in California [2] provides incentives for the installation of these technologies under certain circumstances. This paper assesses the GHG emission impacts from California’s SGIP during the 2005 program year by estimating the reductions in CO2 and CH4 released when SGIP projects are in operation. Our analysis focuses on these emissions since these are the two GHGs characteristic of SGIP projects. Results of this analysis show that emissions of GHGs are reduced due to the SGIP. This is because projects operating under this program reduce reliance on electricity generated by conventional power plants and encourage the use of renewable fuels, such as captured waste heat and methane.
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Sabnis, Sandeep P., and Srinivas Seethamraju. "Dry Reforming of Biogas to Syngas: An Eco-Friendly Renewable Fuel for I C Engines." In ASME 2020 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/imece2020-24559.

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Abstract Biogas, a promising alternative fuel, a substitute for fossil fuels, is predominantly a mixture of methane and carbon dioxide. Both are major greenhouse gases. Methane has a long-term effect on the environment while carbon dioxide is recycled by the plants. Hence, capture and burning of biogas to consume methane as a fuel is desired both from energy and environmental outlook. The presence of a large amount of carbon dioxide in biogas, however, impairs combustion in engines resulting into slow burning and higher hydrocarbon and carbon monoxide emissions. Dry reforming, a conversion process of biogas to synthesis gas (syngas), a mixture of hydrogen and carbon monoxide, is a catalytic process that has the potential to greatly improve biogas combustion in engines. The researchers’ focus in dry reforming, however, has been for the generation of hydrogen for fuel cells and reactants for Fischer Tropsch process in industry — this approach aims towards maximum conversion of methane and carbon dioxide. The work presented here investigates the possibility of partial conversion of biogas to harness maximum energy and reduce emissions from I.C. Engines. The published research on dry reforming of biogas has examples of high concentrations of methane in the syngas with calorific values suitable for I.C. Engine application. For example, a 50:50 v/v CH4/CO2 composition biogas has calorific value of 13.33 MJ/kg which when converted to a syngas at 550°C results in a gas with 18:42:14:26 v/v CO2/CH4/H2/CO and a calorific value of 19.96 MJ/kg). Such compositions have moderate percentage of hydrogen to act as combustion enhancer and the carbon dioxide present helps to control NOx emissions. The major contributors of energy are methane and carbon monoxide in these cases. The dry reforming reaction is an endothermic reaction, which produces hydrogen. The side reactions that happen are the reverse water gas shift reaction, which reduces hydrogen yield and the Bouduard reaction which results in carbon deposition on the catalyst surface. The reactor conditions need to be chosen appropriately, especially the reactor temperature. Simulation of dry reforming reaction using a process simulation software (Aspen Plus) is carried out to find the extent of conversion and exit syngas composition for different biogas compositions. The endothermic heat for the reactor can be provided by the heat of the engine exhaust — therefore, an opportunity exists to use waste heat recovery from the engine exhaust. However, there is a tradeoff between the reactor temperature, syngas composition going to engine inlet and the engine exhaust heat — which is investigated in this study.
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Hatzignatiou, Dimitrios Georgios, and Christine Ehlig-Economides. "Coupled Enhanced Natural Gas Recovery and Blue Hydrogen (EGRBH) Generation." In SPE Annual Technical Conference and Exhibition. SPE, 2022. http://dx.doi.org/10.2118/210356-ms.

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Abstract Natural gas can be used to generate either blue or grey hydrogen depending on whether or not the carbon dioxide byproduct is captured and stored. When captured, the carbon dioxide (CO2) produced from a steam methane reforming (SMR) or partial oxidation (POX) process can be injected into the same natural gas reservoir for enhanced gas recovery (EGR) while simultaneously storing CO2. The objective of this work is the effective integration of these three major processes – blue hydrogen generation, carbon dioxide capture and storage, and enhanced natural gas production. Surface processes include separation of methane from CO2 and other inorganic and organic components in the produced natural gas. Produced CO2 will be injected back into the reservoir, and other components would be managed in ways standard to produced natural gas processing. An SMR or POX process followed by a shift reaction one will generate hydrogen and CO2 followed by separation of the hydrogen and CO2. To avoid a need for post combustion capture, continuous operation can use produced hydrogen to energize the SMR process. Integration of natural gas reservoir production, blue hydrogen generation, and CO2 injection back into the same reservoir leads to a process termed enhanced gas recovery and blue hydrogen (EGRBH). To optimize the reservoir management, analytical and numerical simulation models that address physical mechanisms such as CO2 diffusion, advection, and CO2 solubility in connate water provide guidelines on placement of injection and production wells, on their geometry (vertical or horizontal) and completion interval locations, and on well operating conditions. Displacing methane with CO2 is a miscible process with favorable mobility ratio, and simulations show that the methane recovery factor at CO2 breakthrough depends on both molecular diffusion and dispersivity related to reservoir heterogeneity. Continued production at constant methane rate enables additional blue hydrogen generation while increasing CO2 flow through the reservoir under declining average reservoir pressure. Injection of additional CO2 captured from other stationary point sources can achieve enhanced CO2 storage (ECS) up to a limit pressure less than the original reservoir pressure. The EGRBH process produces blue hydrogen at a price competitive with gasoline or diesel for transportation applications. When used for power generation, blue hydrogen decarbonizes natural gas fired generation at lower cost than can be achieved with post combustion capture from standard natural gas power plants. Blue hydrogen is also less than half the cost of so-called green hydrogen produced via electrolysis using electricity generated with renewable energy. This appears to be an ideal approach for developing and producing new natural gas discoveries.
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Berenblyum, Roman, and Michael Surguchev. "Subsurface Hydrogen Generation: Low Cost and Low Footprint Method of Hydrogen Production." In SPE Norway Subsurface Conference. SPE, 2022. http://dx.doi.org/10.2118/209558-ms.

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Abstract Hydrogen is one of the key components in clean energy systems of the future (Hydrogen Council, 2017). Currently, clean hydrogen production requires either availability of large quantities of renewable energy (in competition with other high power demanding industries) in a capitally expansive electrolysis process or need for carbon capture and storage solutions for the steam methane reforming process. Hydrogen Source developed and is commercializing Hydrogen Generation from Hydrocarbons Subterrain technology allowing to reduce both costs and associated emissions. The process allows converting non- commercial gas reserves to clean hydrogen available for recovery and commercial use with costs considerably below today's state-of-the-art hydrogen production technologies such as electrolysis or steam methane reforming. The paper presents the experimental studies, including adiabatic reactor, core, and combustion tube experiments, confirming process efficiency and simulation studies using state-of-the-art reservoir simulation tools, laying basis for technoeconomic evaluation of the process at the field level. Experimental investigations confirmed process efficiency. Numerical simulation, monte-carlo and P10-P50-P90 statistical analysis showed hydrogen production costs on the scale of 0.1-0.5 $/kg with low associated emissions. Techno-economic estimates of application to several field case evaluations for offshore and onshore hydrogen production are presented. Potential for technology application worldwide is also presented.
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Reports on the topic "Renewable methane generation"

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Jugessur, Sharmila, Qi Xun Low, Christiaan Gischler, Augusto Bonzi Teixeira, Carlton Thomas, Tanagna Lessey-Kelly, Analeise Ramgattie, and Marcia Maynard. The roadmap for a green hydrogen economy in Trinidad and Tobago. Inter-American Development Bank, November 2022. http://dx.doi.org/10.18235/0004555.

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This publication presents the results of a pre-feasibility study to introduce a green hydrogen (GH2) market in Trinidad and Tobago (T&T). The study analyzed the potential supply and competitiveness of producing GH2 in T&T and the actions needed to build a foundation for producing green ammonia and methanol. The study updated previous estimates of renewable energy generation potential in the country. The study also highlighted Trinidad and Tobago's comparative advantage to produce GH2, with its ability to capitalize on existing infrastructure, its know-how and capabilities, and its long-standing trade relations. Lastly, the study identifies demonstration projects and created a roadmap for developing a low carbon hydrogen economy in Trinidad and Tobago.
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