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

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  • Lopez-Castrillon, Carolina
  • Leon, Juan Alvaro
  • Palacios-Bereche, Milagros Cecilia
  • Palacios-Bereche, Reynaldo
  • Nebra, Silvia Azucena

Abstract

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.

Suggested Citation

  • Lopez-Castrillon, Carolina & Leon, Juan Alvaro & Palacios-Bereche, Milagros Cecilia & Palacios-Bereche, Reynaldo & Nebra, Silvia Azucena, 2018. "Improvements in fermentation and cogeneration system in the ethanol production process: Hybrid membrane fermentation and heat integration of the overall process through Pinch Analysis," Energy, Elsevier, vol. 156(C), pages 468-480.
    • Handle: RePEc:eee:energy:v:156:y:2018:i:c:p:468-480
    DOI: 10.1016/j.energy.2018.05.092
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    Cited by:

    1. Zhang, Bo & Chen, Jixiang & Kandasamy, Sabariswaran & He, Zhixia, 2020. "Hydrothermal liquefaction of fresh lemon-peel and Spirulina platensis blending -operation parameter and biocrude chemistry investigation," Energy, Elsevier, vol. 193(C).
    2. Botshekan, Maryam & Moheb, Ahmad & Vatankhah, Fatemeh & Karimi, Keikhosro & Shafiei, Marzieh, 2022. "Energy saving alternatives for renewable ethanol production with the focus on separation/purification units: A techno-economic analysis," Energy, Elsevier, vol. 239(PE).
    3. Kondaveeti, Sanath & Patel, Sanjay K.S. & Pagolu, Raviteja & Li, Jinglin & Kalia, Vipin C. & Choi, Myung-Seok & Lee, Jung-Kul, 2019. "Conversion of simulated biogas to electricity: Sequential operation of methanotrophic reactor effluents in microbial fuel cell," Energy, Elsevier, vol. 189(C).
    4. Palacios-Bereche, M.C. & Palacios-Bereche, R. & Ensinas, A.V. & Gallego, A. Garrido & Modesto, Marcelo & Nebra, S.A., 2022. "Brazilian sugar cane industry – A survey on future improvements in the process energy management," Energy, Elsevier, vol. 259(C).

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