Academic literature on the topic 'Purification biogas technologies'

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Journal articles on the topic "Purification biogas technologies"

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Awe, Olumide Wesley, Yaqian Zhao, Ange Nzihou, Doan Pham Minh, and Nathalie Lyczko. "A Review of Biogas Utilisation, Purification and Upgrading Technologies." Waste and Biomass Valorization 8, no. 2 (January 9, 2017): 267–83. http://dx.doi.org/10.1007/s12649-016-9826-4.

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Gaj, Kazimierz. "Adsorptive Biogas Purification from Siloxanes—A Critical Review." Energies 13, no. 10 (May 20, 2020): 2605. http://dx.doi.org/10.3390/en13102605.

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Siloxanes are among the most technologically troublesome trace compounds present in biogas. As a result of their combustion, hard-to-remove sediments are formed, blocking biogas energy processing devices and reducing the efficiency of biogas plants. The purpose of this study was to help investors and designers to choose the optimal technology for the adsorptive removal of volatile methylsiloxanes (VMSs) from biogas and to identify adsorbents worth further development. This paper critically reviews and discusses the state-of-the-art technologies for the adsorption removal of siloxanes from biogas, indicating potentially beneficial directions in their development and deficiencies in the state of knowledge. The origin of VMSs in biogas, their selected physicochemical properties, technological problems that they can cause and their typical versus limit concentrations in biogases are presented. Both the already implemented methods of adsorptive VMSs removal from landfill and sewage gases and the ones being under development are verified and systematized. The parameters and effectiveness of adsorption processes are discussed, and individual adsorbents are compared. Possible ways of regenerating spent adsorbents are evaluated and prospects for their application are assessed. Finally, zeolite-based adsorbents—which can also be used for biogas desulfurization—and adsorbents based on polymer resins, as being particularly active against VMSs and most amenable to multiple regeneration, are identified.
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Chernysh, Yelizaveta, Magdalena Bálintová, and Viktoriia Chubur. "Modeling of hydrogen sulfide removal under biomethane production in the concept of renewable energy potential growth of Ukraine." E3S Web of Conferences 280 (2021): 05001. http://dx.doi.org/10.1051/e3sconf/202128005001.

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Today, the global trend in the development of renewable energy sources is the implementation of integrated processing of organic waste with the production of biogenic gases such as biomethane. In this case, an essential focus is the study of biogas purification processes to methane. This paper focuses on the process of modeling biochemical purification of biogas from hydrogen sulfide to develop the direction of biomethane production. Simulation of hydrogen sulfide bio-oxidation process with the use of granulated carrier based on phosphogypsum was conducted using experimental data from previous studies to verify the adequacy of the proposed mathematical model. Thus, to implement the process of phosphogypsum utilization in technological systems of biogas purification, it is important to consider the level of bioactivity in the immobilization of bacteria on the loading surface of phosphogypsum and the degree of biotransformation of phosphogypsum components in the oxidation of carbon dioxide and hydrogen sulfide impurities to achieve the highest ecological effect. Also, the use of overlay visualization allowed to form the main clusters of development of research potential in the field of biogas technologies for Ukraine.
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Szolyák, Zsuzsanna, and István Szunyog. "Investigation of amine based carbon-dioxide and hydrogen-sulphide separation technologies for biogases." Multidiszciplináris tudományok 11, no. 1 (2021): 115–22. http://dx.doi.org/10.35925/j.multi.2021.1.12.

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Biogas has been used since the beginning of the 19th century, which is a gaseous material formed during the anaerobic fermentation of organic substance. It is extremely versatile in its use, it is mostly used to produce heat and electricity, but it can also be used as a motor fuel. To produce these gases we can use organic materials and wastes from agriculture, food industry and communal sector. When the produced biogas is utilized, less CO2 is released into the environment than with other primary energy sources, it has zero emissions for the whole “carbon cycle” and can therefore be considered positive. The calorific value of biogas is much lower than in the case of natural gas, however, we can increase the energy content by compression and decarbonisation, which can even produce a biomethane which can be equivalent to natural gas. Depending on the feedstock, the methane content of the biogas can change over a very wide range, and the gas mixture can also contain other gases and water vapor. Thus, in order to improve these parameters, undesirable components must be removed from the gas. Several methods can be used to remove unwanted components of the biogas, however, this study focuses exclusively on amino purification technology.
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Krusir, Galina, Olga Sagdeeva, Alfred Tsykalo, Yuliia Vilhovska, and Tatyana Shpyrko. "Improvement of purification technology of the liquid waste from fermentation production." Environmental Problems 6, no. 1 (2021): 7–14. http://dx.doi.org/10.23939/ep2021.01.007.

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One of the areas of waste disposal of fermentation industries is anaerobic fermentation and biogas production, which becomes increasingly attractive for researchers not only because of the global energy crisis but also the environmental one. Biogas production is based on methane fermentation fundamentally different from other types of fermentation, which creates certain difficulties in its implementation on a large scale. Therefore, the development of innovative energy and resource-saving technologies for the processing of liquid waste from fermentation industries is an urgent task for the development of the domestic food industry. The aim of the work is to develop, theoretically substantiate and experimentally test the technology of processing liquid waste from fermentation plants.
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Negro, Viviana, and Davide Mainero. "An integrated approach to energy use: the case study of the ACEA site." E3S Web of Conferences 119 (2019): 00023. http://dx.doi.org/10.1051/e3sconf/201911900023.

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Currently, ACEA utilises biogas obtained from the treatment of the organic fraction of municipal solid waste for thermal and electric energy recovery through endothermic engines (3 MW, in total). By 2020, the biogas produced at the site will no longer be used as a fuel for the combined heat and power units, but it is expected to feed a purification system in order to obtain a flow of biomethane to be injected into the natural gas network. This is part of the Italian strategy to achieve the Horizon 2020 European targets aimed at promoting the renewable production of transport fuels. In order to encourage sustainability and innovative prototype technologies, ACEA has also been involved in some European research projects, in particular for the conversion of biogas into other energy carriers. furthermore, ACEA ha recently built a flexible experimental platform that can used for the validation step of prototypes in an industrial field.
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Florio, Ciro, Gabriella Fiorentino, Fabiana Corcelli, Sergio Ulgiati, Stefano Dumontet, Joshua Güsewell, and Ludger Eltrop. "A Life Cycle Assessment of Biomethane Production from Waste Feedstock Through Different Upgrading Technologies." Energies 12, no. 4 (February 22, 2019): 718. http://dx.doi.org/10.3390/en12040718.

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Upgrading consists of a range of purification processes aimed at increasing the methane content of biogas to reach specifications similar to natural gas. In this perspective, an environmental assessment, based on the Life Cycle Assessment (LCA) method, of different upgrading technologies is helpful to identify the environmental characteristics of biomethane and the critical steps for improvement. The aim of this work is to conduct an LCA of biomethane production from waste feedstock, using the SimaPro software. The study focuses on the comparison of several upgrading technologies (namely, membrane separation, cryogenic separation, pressure swing adsorption, chemical scrubbing, high pressure water scrubbing) and the on-site cogeneration of electricity and heat, including the environmental benefits deriving from the substitution of fossil-based products. The results show a better environmental performance of the cogeneration option in most of the impact categories. The Fossil resource scarcity is the impact category which is mainly benefited by the avoided production of natural gas, with savings of about 0.5 kg oil eq/m3 of biogas for all the investigated technologies, with an average improvement of about 76% compared to conventional cogeneration. The results show that the membrane upgrading technology is slightly more environmentally convenient than the other upgrading technologies.
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Guo, Pengfei, Yuejin Zhang, and Yongjun Zhao. "Biocapture of CO2 by Different Microalgal-Based Technologies for Biogas Upgrading and Simultaneous Biogas Slurry Purification under Various Light Intensities and Photoperiods." International Journal of Environmental Research and Public Health 15, no. 3 (March 15, 2018): 528. http://dx.doi.org/10.3390/ijerph15030528.

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Wang, Gang, Zhongshen Zhang, and Zhengping Hao. "Recent advances in technologies for the removal of volatile methylsiloxanes: A case in biogas purification process." Critical Reviews in Environmental Science and Technology 49, no. 24 (July 3, 2019): 2257–313. http://dx.doi.org/10.1080/10643389.2019.1607443.

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Sun, Shiqing, Changwei Hu, Shumei Gao, Yongjun Zhao, and Jie Xu. "Influence of three microalgal‐based cultivation technologies on different domestic wastewater and biogas purification in photobioreactor." Water Environment Research 91, no. 8 (April 2019): 679–88. http://dx.doi.org/10.1002/wer.1097.

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Dissertations / Theses on the topic "Purification biogas technologies"

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Santos, Marcelo Valerio dos. "Principais problemas dos motores a biogás e tecnologias de biometanização : estudo de caso." Universidade de Taubaté, 2016. http://www.bdtd.unitau.br/tedesimplificado/tde_busca/arquivo.php?codArquivo=865.

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O presente trabalho realizou o estudo dos principais problemas dos motores movidos a biogás e das principais tecnologias de purificação do biogás em biometano. Para tanto, foram avaliados vários tipos de motores movidos a biogás e estudadas possíveis modificações para aumentar, consideravelmente, sua vida útil. Na purificação do biogás para produção de biometano, foram estudadas as mais diversas tecnologias disponíveis no mercado e na literatura, além da realização de um estudo de caso para melhoria da tecnologia no processo de purificação de biogás, ou seja, a biometanização utilizada na Granja Haacke. A configuração atual de purificação de biogás ocorre via processo físico-químico, utilizando uma coluna de limalha de ferro oxidada, para remoção da fração grosseira, principalmente, do H2S. A ocorrência de falhas ou manutenção desta fase do processo provoca a interrupção da operação. A segunda etapa de purificação consiste na utilização de duas colunas de adsorção tipo Pressure Swing Adsorption (PSA), cuja função é remover a fração resultante de CO2 da composição do biogás. Pode-se concluir que, a melhor proposta de upgrade para o estudo de caso seria introduzir, no início do processo, uma torre de biodessulfurização de biogás Thiobacillus ferroxidans, seguida de duas colunas de limalha de ferro oxidado, montadas em paralelo, para remoção de H2S e CO2, mantendo toda a configuração posterior para remoção da fração fina. Com isto, o sistema ficará, consideravelmente, ecoeficiente, pois reduzirá a produção de inservíveis, aumentando a vida útil dos filtros.
This investigation aimed to accomplish the study of the major problems of engines operating with biogas and the main purification technologies in biomethane. Therefore, was evaluated several types of engines operating with biogas and studied possible changes to improve significantly the lifetime. In the purification of biogas to produce biomethane, was studied several technologies available in the market and in literature, besides to accomplish a case study to improve the purification process, that is, the biomethanization used in Granja Haacke. The current configuration of biogas purification is via physical-chemical process using a rusty column iron for removal of the coarse fraction mainly H2S. The occurrence of faults or maintenance of this stage of the process causes the stop operation. The second step purification use two Pressure Swing Adsorption (PSA) columns whose function is to remove the resulting fraction of CO2 from biogas composition. We can conclude that the best proposal to case study upgrade would be introduced at the beginning of the process a biogas desulphurization tower of the Thiobacillus ferroxidans followed by two columns of rusty column iron mounted in parallel for removing H2S and CO2, and thus keep all subsequent setting for the fine fraction removal. With this the system will be considerably ecofriendly because will be reduced the scrap production increasing the lifetime of the filters.
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Grave, Gwendoline. "Synthèse catalytique directe d'éthers à partir de glycérol et d'alcools pour des applications lubrifiantes." Thesis, Montpellier, Ecole nationale supérieure de chimie, 2017. http://www.theses.fr/2017ENCM0001.

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Le défi de cette thèse est d’utiliser le glycérol, co-produit de la production de biodiesel, pour synthétiser des molécules ayant des propriétés lubrifiantes en restant dans le cadre d’une chimie verte. Cette étude porte sur l’éthérification en deux étapes du glycérol par un alcool par catalyse acide. Les objectifs principaux de ce projet sont donc la synthèse et la purification de mono-, di- et tri-éthers de glycérol (MEG, DEG, TEG), ainsi que l’étude des relations entre leurs structures et leurs propriétés pour des applications lubrifiantes. Les propriétés tribologiques de ces molécules comme modificateurs de frottements pour les lubrifiants ont été évaluées au Centre de Recherches de Solaize (CReS).La formation d’éthers de glycérol par des alcools a déjà été largement étudiée dans la littérature. Pour contourner le problème d’immiscibilité entre le glycérol et les alcools gras, la première éthérification a été réalisée avec un alcool court (6 carbones) et la seconde avec un alcool long (>7 carbones), les mono-éthers de glycérol étant miscibles avec les alcools gras. Ainsi la formation de MEG et DEG avec plus de vingt carbones est rendue possible. Dans ce travail, les paramètres de réaction (ratio entre les réactifs, nature et quantité de catalyseurs, purification) ont été optimisés pour deux réactions modèles. La première réaction est l’éthérification entre le glycérol et le 1-hexanol, et la seconde, l’éthérification entre le mono-hexyl de glycérol obtenu et le 1-hexanol. Une des difficultés principales de ces réactions est la séparation et la purification des différents éthers obtenus, à cause notamment de leurs structures très proches, ainsi que de la présence de sous-produits tels que des oligomères de glycérol. L’optimisation du procédé de purification des produits a donc représenté un des volets importants de cette thèse. Les meilleures conditions de purification déterminées ont permis d’extraire 80% du mono-hexyl éther de glycérol synthétisé du milieu réactionnel brut. L’optimisation des conditions opératoires et de la purification ont permis d’étendre l’éthérification du glycérol à plusieurs autres alcools de structures différentes. Par cette méthode, dix-huit échantillons de mono et/ou di-éthers de glycérol différents ont été obtenus. Chacun de ces échantillons a été testé au Centre de Recherches TOTAL de Solaize en tant qu'additifs modificateurs de frottements pour les lubrifiants. Ces tests ont permis d’établir des corrélations entre la structure chimique des molécules et leurs propriétés tribologiques
The challenge of this PhD is to use glycerol, by-product of biodiesel production, to generate molecules of interest via green processes. This study is focused on the two step etherification of glycerol with alcohols over acid catalysts. The main prospect of this project is the study of the relationships between the structures of the mono-, di- and tri-ethers (MEG, DEG and TEG) and their properties for lubricant applications. The tribological properties of these products as friction modifiers have been evaluated at the TOTAL Research Center in Solaize. The formation of ethers of glycerol with alcohols has already been widely studied in the literature. To overpass the immiscibility between glycerol and fatty alcohols the first etherification has be performed with a short alcohol as a reactant, while the second has been performed with a fatty alcohol, the previously obtained mono-ethers being miscible with fatty alcohols. Thus, the formation of di- and tri-ethers of glycerol with more than twenty carbons becomes possible. In this work, the reaction parameters (ratio between reactants, the nature and amount of catalyst, and the purification) were optimized for two model reactions. The first reaction was the etherification between glycerol and 1-hexanol and the second was the etherification of the previously obtained MEG with 1-hexanol. One of the main challenges of these reactions is the separation and purification of the ethers, because of their very structures, and the presence of by-products such as oligomers of glycerol or ethers. The optimization of the purification process of the ethers has then been one of the major challenges of this work. The best purification conditions have allowed the extraction of 80% of the synthesized mono-hexyl ether from the reaction medium.The optimization of operating conditions of the various reactions used, as well as the purification of the obtained ethers, allowed the extension of the scope of reaction to several alcohols of different structures. Consequently, eighteen different samples of mono- and/or di-ethers of glycerol have been obtained and tested at the TOTAL Research Center in Solaize as friction modifiers in lubricants. These tests have led to the establishment of relationships between the chemical structure of the molecules and their tribological properties
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Books on the topic "Purification biogas technologies"

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Ramaswamy, Shri, Bandaru V. Ramarao, and Hua-Jiang Huang. Separation and Purification Technologies in Biorefineries. Wiley & Sons, Incorporated, John, 2013.

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Ramaswamy, Shri, Bandaru V. Ramarao, and Hua-Jiang Huang. Separation and Purification Technologies in Biorefineries. Wiley & Sons, Incorporated, John, 2013.

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Separation And Purification Technologies In Biorefineries. John Wiley and Sons Ltd, 2013.

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Book chapters on the topic "Purification biogas technologies"

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Rodero, María Rosario, Roxana Ángeles, David Marín, Israel Díaz, Alexandre Colzi, Esther Posadas, Raquel Lebrero, and Raúl Muñoz. "Biogas Purification and Upgrading Technologies." In Biofuel and Biorefinery Technologies, 239–76. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-77335-3_10.

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Huang, Hua-Jiang, and Shri Ramaswamy. "Overview of Biomass Conversion Processes and Separation and Purification Technologies in Biorefineries." In Separation and Purification Technologies in Biorefineries, 1–36. Chichester, UK: John Wiley & Sons, Ltd, 2013. http://dx.doi.org/10.1002/9781118493441.ch1.

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Conference papers on the topic "Purification biogas technologies"

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"A Review of Biogas Purification through Chemical Absorption." In International Conference on Chemical Engineering and Advanced Computational Technologies. International Institute of Engineers, 2014. http://dx.doi.org/10.15242/iie.e1114022.

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Yadav, S. D., B. Kumar, and S. S. Thipse. "Biogas purification: Producing natural gas quality fuel from biomass for automotive applications." In 2013 International Conference on Energy Efficient Technologies for Sustainability (ICEETS). IEEE, 2013. http://dx.doi.org/10.1109/iceets.2013.6533425.

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Pinzo´n Coronado, Horacio, Lesme Corredor Marti´nez, Nilma Rosa Barsallo Pacheco, and Armando Luis Lacera Rinco´n. "A Novel Proposed Method for Achieving Cities With Zero Anthropogenic Methane Emissions." In ASME 2011 5th International Conference on Energy Sustainability. ASMEDC, 2011. http://dx.doi.org/10.1115/es2011-54484.

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The growth of urban population is increasing quickly worldwide, especially in developing countries. This fact substantially affects the generation of waste, whether liquid, gaseous or solid, which are deposited in places commonly known as landfills. The organic matter in solid residues promotes methane production, which is a high impact greenhouse gas. Researches on uses of biogas from anaerobic fermentation’s processes have been made; nevertheless most have focused on Biogas direct burning or on site generation of electricity, and a few on biofuel production for transportation purposes. Regardless of the development of technologies to use biogas as renewable energy source, there is not wide documentation of projects involving population growth and urban planning with sustainable power generation based on organic residues produced within cities. For the Latin American case the implementation of technologies for biogas utilization is poor and projects that allow the integration of methane production based on population growth with its energy needs would highly promote planning and implementation of policies for sustainable resources exploitation. Their impact in the short, medium and long term would be unprecedented at all levels. The model proposed here serves as analysis tool for developing sustainable energy policies based on urban growth prognostics leading to 100% utilization biogas emissions for both electrical and fuel power generation. In the methodology used is performed an identification and geographic location of the main emissions sources such as landfills and sewage plants. Main solid waste generation sources are identified and an estimation of organic residues amount is made. Based on organic residues and methane production models provided by EPA, it is possible to obtain a long-term estimate of landfill biogas generation according to demographic growth prognostics. The overall power generation provided by a purification and separation plant is obtained from past estimations. Electrical energy and pure methane are produced. Model is validated in Panama City, which authors analyze the implementation of a separation plant whose objective is the adaptation of biogas for automotive purposes covering all their energy demand with electrical energy generated from a percentage of collected biogas. It hopes to have a major impact on the public urban transport fleet of Panama and a future implementation of pipeline that will feed the energy requirements of the city.
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Franzoni, A., L. Galanti, A. Traverso, and A. F. Massardo. "Thermoeconomic Analysis of Integrated Systems for Electricity and Hydrogen Production." In ASME 2008 Power Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/power2008-60115.

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This paper describes and compares the results of thermodynamic and economic modelling based on integrating an existing large size steam power plant (ENEL’s Brindisi power plant-660 MWe) with hydrogen production and purification plants. ENEL is one of the main Italian power utility. The high quality of the hydrogen produced would guarantee its usability for distributed generation (e.g. by micro gas turbine, Stirling engine, fuel cell, etc.) and also for public transport (using PEM fuel cells). The proximity of an hydrogen production and purification plant to an existing steam power plant can favour connections in terms of energy requirements exchanges; the integrated system, proposed here, can represent an attractive approach to a flexible hydrogen-electricity co-production. Two different technologies for the syngas production section are considered: the pyrolysis process and direct pressurised gasification. These technologies produce syngas with different characteristics in terms of temperature, pressure and composition: this has a profound effect on the layout of the complete systems proposed in this paper. The model for the pyrolysis process is based on an existing 800 kWt coal- and biomass-fed pyrolysis ENEL’s plant placed in Bastardo (Perugia, Italy): a detailed model of the plant was created. Different coals (Ashland, South Africa, Sulcis) and biomass (Poplar, Mischantus, Wood residuals, Husk) are considered in this study to explore the real potential of mixed-fuels in terms of thermodynamic performances and costs. The results were obtained using WTEMP software, developed by the TPG of the University of Genoa, showing the performance attainable by integrating a real steam power plant with systems for hydrogen production and purification for a novel vision of clean distributed hydrogen generation.
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Braun, Robert J., Luke G. Hanzon, and Jered H. Dean. "System Analysis of Thermochemical-Based Biorefineries for Co-Production of Hydrogen and Electricity." In ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-39002.

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Fuels derived from biomass feedstocks are a particularly attractive energy resource pathway given their inherent advantages of energy security via domestic fuel crop production and their renewable status. However, there are numerous questions regarding how to optimally produce, distribute, and utilize biofuels such that they are economically, energetically, and environmentally sustainable. Comparative analyses of two conceptual 2000 tonne/day thermochemical-based biorefineries are performed to explore the effects of emerging technologies on process efficiencies. System models of the biorefineries, created using ASPEN Plus®, include all primary process steps required to convert a biomass feedstock into hydrogen, including gasification, gas cleanup and conditioning, hydrogen purification, and thermal integration. The biorefinery concepts studied herein are representative of ‘near-term’ (ca. 2015) and ‘future’ (ca. 2025) plants. The ‘near-term’ plant design serves as a baseline concept and incorporates currently available commercial technologies for all non-gasifier processes. The ‘future’ plant design employs emerging gas cleaning and conditioning technologies for both tar and sulfur removal unit operations. Gasifier technology employed in these analyses is centered on directly-heated, oxygen-blown, fluidized-bed systems. Selection of the gasifier pressurizing agent (CO2 v. N2) is found to be a key factor in achieving high hydrogen production efficiency. Efficiency gains of 8-percentage points appear possible with CO2 capture using Selexol or Rectisol-type processes. A 25% increase in electric power production is observed for the ‘future’ case over the baseline configuration due to improved thermal integration while realizing an overall plant efficiency improvement of 2 percentage points. Exergy analysis reveals the largest inefficiencies are associated with the (i) gasification, (ii) steam and power production, and (iii) gas cleanup and purification processes.
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Galanti, Leandro, Alessandro Franzoni, Alberto Traverso, and Aristide F. Massardo. "Electricity and Hydrogen Co-Production From Coal and Biomass." In ASME Turbo Expo 2009: Power for Land, Sea, and Air. ASMEDC, 2009. http://dx.doi.org/10.1115/gt2009-59068.

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This paper presents and discusses the results of a complete thermoeconomic analysis of an integrated power plant for co-production of electricity and hydrogen via pyrolysis and gasification processes, applied to an existing large steam power plant (ENEL Brindisi power plant-660 MWe). The two considered technologies produce syngas with different characteristics in terms of temperature, pressure and composition, and this has a significant effect on the layouts of the complete systems proposed in the paper. Moreover, the proximity of a hydrogen production and purification plants to an existing steam power plant favour the inter-exchange of energy streams, mainly in the form of hot water and steam, which reduces the costs of auxiliary equipment. Various coals (Ashland, South African and Sardinian Sulcis coal) and mixtures of South African coal and biomass (Poplar) are considered in this study, in order to explore the real potential of mixed fuels in terms of impact on plant economics and reducing CO2 emissions. Furthermore, the high quality of the hydrogen, produced through a Pressure Swing Adsorption unit or a dense Membrane unit, allows it to be used for distributed generation (e.g. by microturbine, Stirling engine, etc.) as well as public transport (using PEM fuel cells). The results were obtained using WTEMP thermoeconomic software [9], developed by the TPG (Thermochemical Power Group) of the University of Genoa, and this project has been carried out within the framework of the FISR National project “Integrated systems for hydrogen production and utilization in distributed power generation” [10]. The complete systems proposed here can represent an attractive approach to flexible hydrogen-electricity co-production.
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Hijazi, Iyad, Yang Zhang, and Robert Fuller. "A Simple EAM Potential for Hydrogen-Selective Palladium Based Membranes for Biomass Derived Syngas Processing." In ASME 2018 12th International Conference on Energy Sustainability collocated with the ASME 2018 Power Conference and the ASME 2018 Nuclear Forum. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/es2018-7369.

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Biomass offers the potential to economically produce hydrogen via gasification from an abundant and renewable feedstock. When hydrogen is produced from a biomass gasifier, it is necessary to purify it from syngas streams containing components such as CO, CO2, N2, CH4, and other products. Therefore, a challenge related to hydrogen purification is the development of hydrogen-selective membranes that can operate at elevated temperatures and pressures, provide high fluxes, long operational lifetime, and resistance to poisoning while still maintaining reasonable cost. Palladium based membranes have been shown to be well suited for these types of high-temperature applications and have been widely utilized for hydrogen separation. Palladium’s unique ability to absorb a large quantity of hydrogen can also be applied in various clean energy technologies, like hydrogen fuel cells. In this paper, a fully analytical interatomic Embedded Atom Potential (EAM) for the Pd-H system has been developed, that is easily extendable to ternary Palladium based hydride systems such as Pd-Cu-H and Pd-Ag-H. The new potential has fewer fitting parameters than previously developed EAM Pd-H potentials and is able to accurately predict the cohesive energy, lattice constant, bulk modulus, elastic constants, melting temperature, and the stable Pd-H structures in molecular dynamics (MD) simulations with various hydrogen concentrations. The EAM potential also well predicts the miscibility gap, the segregation of the palladium hydride system into dilute (α) and concentrated (β) phases.
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