摘要:
Strict anaerobic thermophilic bacterium belonging to the group of Thermoanaerobacter mathranii and mutants and derivatives thereof. The bacterium is particularly suitable for the production of fermentation products such as ethanol, lactic acid, acetic acid and hydrogen from lignocellulosic biomass.
摘要:
PROBLEM TO BE SOLVED: To provide a method of dehydrating and purifying a fermentation liquid, capable of sufficiently saving energy while suppressing loss of a fermentation product in a low level and to provide a system therefor. SOLUTION: The method for dehydration and purification comprises a distillation step of generating ethanol-water mixed vapor by feeding an ethanol fermentation liquid to an uppermost stage part of a distillation column 5 and also feeding steam to a lowest stage part of the distillation column 5, and a dehydration step of dehydrating ethanol-water mixed vapor generated by the distillation using a separation film 13. In the method, the feed amount of steam in gas-liquid equilibrium limit point of ethanol and water in the uppermost stage part of the distillation column 5 is set as a target steam feed amount, and the feed amount of steam fed to the lowest stage part of the distillation column 5 is controlled so as to agree with the target steam feed amount. COPYRIGHT: (C)2010,JPO&INPIT