Biogas production from malt bagasse from craft beer industry: kinetic modeling and process simulation.

Autor: Tschoeke ICP; Department of Food Science, Federal University of Pernambuco Agreste (UFAPE), Bom Pastor Avenue, W/N, Boa Vista, Garanhuns, PE 55292-270 Brazil., Fraga TJM; Department of Food Science, Federal University of Pernambuco Agreste (UFAPE), Bom Pastor Avenue, W/N, Boa Vista, Garanhuns, PE 55292-270 Brazil.; Department of Chemical Engineering, Federal University of Pernambuco (UFPE), 1235 Prof. Moraes Rego Av, Cidade Universitária, Recife, PE 50670-901 Brazil., da Silva MP; Department of Chemical Engineering, Federal University of Pernambuco (UFPE), 1235 Prof. Moraes Rego Av, Cidade Universitária, Recife, PE 50670-901 Brazil., Costa E Souza TP; Department of Food Science, Federal University of Pernambuco Agreste (UFAPE), Bom Pastor Avenue, W/N, Boa Vista, Garanhuns, PE 55292-270 Brazil., Chinelate GCB; Department of Food Science, Federal University of Pernambuco Agreste (UFAPE), Bom Pastor Avenue, W/N, Boa Vista, Garanhuns, PE 55292-270 Brazil.
Jazyk: angličtina
Zdroj: Journal of material cycles and waste management [J Mater Cycles Waste Manag] 2023 Jun 09, pp. 1-13. Date of Electronic Publication: 2023 Jun 09.
DOI: 10.1007/s10163-023-01715-7
Abstrakt: In this work, biogas was synthesized from malt enriched-craft beer bagasse with the objective to generate clean energy. Thus, a kinetic model based on thermodynamic parameters was proposed to represent the process with coefficient determination ( R 2 ) of 0.82. A bench-top biodigester of 2.0 × 10 -3  m 3 was built in glass, and equipped with sensors to measure pressure, temperature, and methane concentration. The inoculum selected for the anaerobic digestion was the granular sludge, and malt bagasse was used as substrate. Data were fitted to a pseudo-first-order model for the formation of methane gas using the Arrehnius equation as basis. For the simulations of biogas production, the Aspen Plus ™ software was used. Results from 2 3 factorial design experiments evidenced that equipment was efficient, and the craft beer bagasse showed great biogas production, with nearly 95% of methane yield. The temperature was the variable that showed most influence in the process. Moreover, the system has a potential for the generation of 10.1 kWh of clean energy. Kinetic constant rate for methane production was 5.42 × 10 -7  s -1 and activation energy 8.25 kJ mol -1 . A statistical analysis using a math software was performed and evidenced that the temperature played a major role in the biomethane conversion.
Supplementary Information: The online version contains supplementary material available at 10.1007/s10163-023-01715-7.
Competing Interests: Conflict of interestThe authors declare that they have no conflict of interest.
(© The Author(s), under exclusive licence to Springer Nature Japan KK, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.)
Databáze: MEDLINE
Externí odkaz: