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標題: Direct in situ butanol recovery inside the packed bed during continuous acetone-butanol-ethanol (ABE) fermentation
作者: Wang, Yin-Rong
Chiang, Yu-Sheng
Chuang, Po-Jen
Chao, Yun-Peng
Li, Si-Yu
關鍵字: Acetone-butanol-ethanol (ABE) fermentation;Glucose utilization;Immobilized Clostridium acetobutylicum;Integrated extraction-gas stripping;Packed bed in a vertical mode;Acetone;Bioreactors;Biotechnology;Butanols;Clostridium acetobutylicum;Ethanol;Fatty Alcohols;Fermentation;Glucose
Project: Applied microbiology and biotechnology, Volume 100, Issue 17, Page(s) 7449-56.
In this study, the integrated in situ extraction-gas stripping process was coupled with continuous ABE fermentation using immobilized Clostridium acetobutylicum. At the same time, oleyl alcohol was cocurrently flowed into the packed bed reactor with the fresh medium and then recycled back to the packed bed reactor after removing butanol in the stripper. A high glucose consumption of 52 g/L and a high butanol productivity of 11 g/L/h were achieved, resulting in a high butanol yield of 0.21 g-butanol/g-glucose. This can be attributed to both the high bacterial activity for solvent production as well as a threefold increase in the bacterial density inside the packed bed reactor. Also reported is that 64 % of the butanol produced can be recovered by the integrated in situ extraction-gas stripping process. A high butanol productivity and a high glucose consumption were simultaneously achieved.
DOI: 10.1007/s00253-016-7443-6
Appears in Collections:化學工程學系所

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