Modeling of coupling gasification and anaerobic digestion processes for maize bioenergy conversion |
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| Affiliation: | 1. University of Modena and Reggio Emilia, Department of Engineering ‘Enzo Ferrari’, Via Vignolese 905, 41125 Modena, Italy;2. Bioboost SRL, Via Geminiano Capilupi 21, 41122 Modena, Italy;1. School of Biochemical Engineering, Pontificia Universidad Católica de Valparaíso, Av. Brasil 2085, Valparaíso, Chile;2. Bioenercel S.A. Barrio Universitario s/n, Ideaincuba Building, Concepción, Chile;3. Departamento de Silvicultura, Facultad de Ciencias Forestales, Universidad de Concepción, Chile;4. School of Forest Sciences, University of Eastern Finland, PO Box 111, FI FI-80101, Joensuu, Finland;5. Norwegian Forest and Landscape Institute, PO 115, NO-1431, Ås, Norway;6. Department of Chemical Engineering, Institute of Technology, University of Santiago de Compostela, 15782, Santiago de Compostela, Spain;1. Dipartimento di Ingegneria Elettrica, Gestionale e Meccanica, University of Udine, 33100 Udine, Italy;2. International Institute for Applied Systems Analysis, Schlossplatz 1, A-2361 Laxenburg, Austria;3. Mälardalen University, P.O. Box 883, SE – 72123 Västerås, Sweden;1. Department of Chemical and Biochemical Engineering, Technical University of Denmark, DTU, 2800 Kgs. Lyngby, Denmark;2. INRA - AgroParisTech, UMR1402 EcoSys, Thiverval-Grignon, France;1. School of Economics, Sichuan University of Science & Engineering, Zigong, Sichuan, 643000, China;2. School of Economics, Sichuan University, Chengdu, Sichuan, 610065, China;3. Chengdu Vocational University of the Arts, Chengdu, Sichuan, 611433, China;4. Department of Electrical Engineering, Yeungnam University, Yeungnam, South Korea;1. The Department of Mechanical Engineering, Delta State University, P.M.B. 1, Abraka – Oleh Campus, Delta State, Nigeria;2. Energy and Thermofluids Research Group, Department of Mechanical Engineering, University of Port Harcourt, PMB 5323, Choba, Port Harcourt, Rivers State, Nigeria;3. School of Engineering and Physical Science, Mechanical Engineering and Design, Aston University, Aston Triangle, B4 7ET, Birmingham, UK |
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| Abstract: | This work estimates the advantages of using maize as fuel in a power plant composed of an anaerobic digester, a gasifier and an Internal Combustion (IC) engine. The digester is fed with maize grains, while, the remaining part of the plant, the stover, is gasified. Then biogas and syngas streams are both used as fuel into the engine. The performance of this plant was evaluated coupling gasification and anaerobic digestion mathematical models. Results of the proposed solution are compared with the performance of a 100 kW biogas power plant fed with the whole crop silaged. Results show that the overall energy yield of the improved solution is 39% higher than the conventional one fed with maize silage. This method will lead to the design of small and cheap digesters as a result of the increased conversion rate. In fact, the solution proposed fully converts the high cellulose-fiber parts of the maize plant that were tough to degrade in anaerobic digesters. |
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| Keywords: | Stover Corn grains Gasification Anaerobic digestion Modeling |
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