Improvements in fermentation and cogeneration system in the ethanol production process: Hybrid membrane fermentation and heat integration of the overall process through Pinch Analysis

Autor(es)

Lopez-Castrillon, Carolina ^[1] ; Leon, Juan Alvaro ^[1] ; Palacios-Bereche, Milagros Cecilia ^[1] ; Palacios-Bereche, Reynaldo ^[1] ; Nebra, Silvia Azucena ^{[1, 2]}

Afiliação do(s) autor(es)

^[1] Fed Univ ABC CECS UFABC, Ctr Engn Modelling & Social Sci, Rua Santa Adelia 166, BR-09210170 Santo Andre, SP - Brazil

^[2] Univ Campinas NIPE UNICAMP, Interdisciplinary Ctr Energy Planning, Rua Cora Coralina 330, POB 6166, BR-13083896 Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: ENERGY; v. 156, p. 468-480, AUG 1 2018.
• Citações Web of Science: 2

Resumo

The incorporation of an alternative technology for the fermentation process, and an improved cogeneration system in the first-generation ethanol production process were evaluated; and a heat integration analysis was performed as well. The hybrid membrane fermentation, the alternative technology, was considered as a non-conventional operation, and its impact on the overall energy consumption of the integrated process was estimated. The improved cogeneration system contemplated a supercritical cycle, and the increase in surplus electricity was also evaluated assuming a mixture of bagasse and sugarcane straw as fuel. The heat integration of the process streams was performed applying the Pinch Analysis in order to determine the targets for minimum external heating and cooling. Furthermore, the integration of the multiple-effect evaporator of sugarcane juice, to the process, was optimised based on the heat integration analysis results. Moreover, the results showed a possibility of generating a surplus electricity of 138 MW (275 kWh/t of cane) with the new technologies applied. (C) 2018 Elsevier Ltd. All rights reserved. (AU)

• Processo FAPESP: 11/51902-9 - Simulação da biorrefinaria de cana-de-açúcar de 1ª. geração na plataforma EMSO
• Beneficiário: Antonio Maria Francisco Luiz Jose Bonomi
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOEN - Temático