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Modelling the energy performance of a farm-scale cellulose to ethanol process with on-site cellulase production and anaerobic digestion

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  • Lever, Mitchell

Abstract

A farm-scale process for converting wheat straw to ethanol was modelled to assess its energy performance. The process incorporates the on-site production of crude unprocessed liquid cellulase produced via solid-state fermentation, and the anaerobic digestion of process residues to supply heat and electricity. Results include energy yield ratios from 6 to 9, reductions of 80–90 % in the energy required to produce and transport the cellulase compared to commercial preparations, and a net surplus of on-site heat and electricity. From these improvements in process efficiency, environmental benefits follow.

Suggested Citation

  • Lever, Mitchell, 2015. "Modelling the energy performance of a farm-scale cellulose to ethanol process with on-site cellulase production and anaerobic digestion," Renewable Energy, Elsevier, vol. 74(C), pages 893-902.
    • Handle: RePEc:eee:renene:v:74:y:2015:i:c:p:893-902
    DOI: 10.1016/j.renene.2014.08.069
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    References listed on IDEAS

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    1. Sarkar, Nibedita & Ghosh, Sumanta Kumar & Bannerjee, Satarupa & Aikat, Kaustav, 2012. "Bioethanol production from agricultural wastes: An overview," Renewable Energy, Elsevier, vol. 37(1), pages 19-27.
    2. Lever, Mitchell & Ho, Goen, 2012. "Reducing energy for cellulose ethanol production by the use of sterilising agents in lieu of steam," Renewable Energy, Elsevier, vol. 43(C), pages 403-406.
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    Cited by:

    1. Elsayed, Mahdy & Li, Wu & Abdalla, Nashwa S. & Ai, Ping & Zhang, Yanlin & Abomohra, Abd El-Fatah, 2022. "Innovative approach for rapeseed straw recycling using black solider fly larvae: Towards enhanced energy recovery," Renewable Energy, Elsevier, vol. 188(C), pages 211-222.
    2. Avelino Gonçalves, Fabiano & dos Santos, Everaldo Silvino & de Macedo, Gorete Ribeiro, 2015. "Use of cultivars of low cost, agroindustrial and urban waste in the production of cellulosic ethanol in Brazil: A proposal to utilization of microdistillery," Renewable and Sustainable Energy Reviews, Elsevier, vol. 50(C), pages 1287-1303.

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