LAPSE:2018.0131
Preprint
LAPSE:2018.0131
Techno-economic comparison of Acetone-Butanol-Ethanol fermentation using various extractants
Giancarlo Dalle Ave, Thomas A. Adams II
June 12, 2018
This work compares various chemicals for use as extractants in second-generation Acetone-Butanol-Ethanol fermentation on economic and environmental bases. Both non-toxic and toxic extractants are considered in this study. The combinative extractive-distillation separation process was modelled using a combination of Microsoft Excel 2013, MATLAB 2015 and Aspen Plus v8.8. Separation trains were designed and optimized for each extractant to best take advantage of extractant properties. Upstream units considered in this analysis include: biomass (switchgrass) solids processing, biomass pre-treatment and saccharification, and fermentation. Downstream processes considered include utility generation and wastewater treatment. The cost of CO2 equivalent emissions avoided (CCA) was used as the metric to compare the environmental impact of each process as compared to conventional petroleum-based gasoline. The economic and environmental best extractant is shown to be 2-ethyl-hexanol with a minimum butanol selling price of $1.58/L and a CCA of $471.57/tonne CO2 equivalent emissions avoided.
Keywords
Acetone, Butanol, Cost of CO2 Emissions Avoided, Ethanol, Extraction, Fermentation, Technoeconomic Analysis
Suggested Citation
Dalle Ave G, Adams TA II. Techno-economic comparison of Acetone-Butanol-Ethanol fermentation using various extractants. (2018). LAPSE:2018.0131
Author Affiliations
Dalle Ave G: McMaster University
Adams TA II: McMaster University [ORCID] [Google Scholar]
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Journal Name
Energy Conversion and Management
Volume
156
First Page
288
Last Page
300
Year
2017
Publication Date
2017-11-15
Version Comments
Original Submission
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LAPSE:2018.0131
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doi:10.1016/j.enconman.2017.11.020
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LAPSE:2018.0132
Techno-economic comparison of Aceto...
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Jun 12, 2018
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Original Submitter
Thomas A. Adams II
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Techno-economic comparison of Acetone-Butanol-Ethanol fermentation using various extractants