Integrated Bioprocessing and Simultaneous Product Recovery for Butanol Production

摘要: This chapter describes process integration for butanol fermentation and simultaneous recovery. In unintegrated fermentation, the concentration of biofuel rarely exceeds 30 g/L due to its toxic nature. Such a low results in reactor productivities 0.30 g/L h, as well acetone-butanol-ethanol (ABE) yields that result an uneconomic process. effort improve productivity yield, researchers have employed alternative product recovery techniques remove from broth it is produced, thus never allowing reach level. As result, integrated bioreactor systems used glucose produce ABE excess 461-690 g/L. The these include adsorption, liquid-liquid extraction, perstraction, pervaporation, gas stripping, vacuum reverse osmosis. High-productivity reactors (up 5.0 g/L h) employing removal resulted processes could be commercialized fermentation. Some involved been studied production whey permeate agricultural residues through hydrolysis, (SSFR). butanol-producing cultures such can hydrolyze lactose present during processes. However, hydrolysis residues, hydrolytic enzymes are added system, with performed components single system.