Separation of butanol from acetone-butanol-ethanol fermentation by a hybrid extraction-distillation process

Impacts of acetone on the spray combustion of Acetone–Butanol–Ethanol (ABE)-Diesel blends under low ambient temperature

“…Acetone-Butanol-Ethanol (ABE) fermentation is one of the major methods used to produce bio-butanol. This process involves bacterial fermentation of biomass feedstock to produce acetone, n-butanol and ethanol at a volume ratio of roughly 3:6:1 [5][6][7][8]. Bio-butanol usually uses a strain of bacteria from the Clostridia Class (Clostridium Family).…”

Acetone–butanol–ethanol (ABE) fermentation integrated with simplified gas stripping using sweet sorghum bagasse as immobilized carrier

“…Butanol, the main product of ABE fermentation, shows severe inhibition to the cells, which results in the low butanol yield and productivity [9,10]. More importantly, the recovery of butanol from the low titer fermentation broth has been recognized to be energy intensive [11,12]. Although efforts have been taken to construct metabolic engineering strains, however, there was only $2% of butanol in the broth when such skills were applied in the solventogenic fermentation, which was far behind the bio-ethanol titer (12-15%) [8,13].…”

4. Introduction to bioconversion and downstream processing: principles and process examples

“…Afterwards, the condensate is purified via distillation, achieving 99 wt% pure butanol, with a total energy demand of 7.4 MJ/kg. Kraemer et al [46] suggested a combined extraction-distillation method for the separation of butanol from an acetone-butanol-ethanol fermentation by C. acetobutylicum. At first, butanol is extracted with mesitylene (1,3,5-trimethylbenzene), which is subsequently recovered in a distillation process.…”