Multi-objective optimization of operation of lignocellulosic acetone-butanol-ethanol fermentation with ex situ butanol recovery (ESBR)

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This study proposes a multi-objective operation strategy for a continuous acetone-butanol-ethanol (ABE) fermentation process with ex situ recovery by adsorption (termed "lignocellulosic ESBR-by-adsorption system";), which is used to produce biobutanol from lignocellulosic biomass. In this study, a model-based cyclic steady state (CSS) optimization of the lignocellulosic ESBR-by-adsorption system is performed to find the best operating conditions and gain better understandings of its dynamic behavior. To gain insights into the relationships between operating conditions and performance of the system, key operating variables are optimized with respect to three different objective functions: maximizing productivity, maximizing yield, and minimizing substrate loss. In addition, an optimization study is conducted for two different types of feedstocks to investigate the effect of feedstock type on system performance. Furthermore, an open-loop sensitivity analysis is performed to identify the most influential parameters and operating conditions that provide more stable system behavior when uncertainties are present.
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Issue Date
2020-09
Language
English
Article Type
Article
Citation

COMPUTERS & CHEMICAL ENGINEERING, v.140, pp.106915

ISSN
0098-1354
DOI
10.1016/j.compchemeng.2020.106915
URI
http://hdl.handle.net/10203/275862
Appears in Collection
CBE-Journal Papers(저널논문)
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