Patent ID: 8551747
Filing Date: 2013-10-08
Classification: C08H,C12P,D21C,Y02E

Abstract:
1. A process for producing bioethanol from a lignocellulosic plant raw material, comprising the successive steps of: a)destructuring a lignocellulosic plant raw material by contacting the lignocellulosic plant raw material with a mixture containing formic acid and water at a temperature between 95° C. and 110° C.; b)separating the destructured lignocellulosic plant raw material at atmospheric pressure into a solid phase mainly composed of said cellulose constituting a first substrate, and a liquid phase containing in aqueous solution, hemicelluloses, lignins and the formic acid, constituting a second substrate; c) hydrolysing the first and second substrates to produce a hydrolysed material; d)fermenting the hydrolysed material to produce a fermented material containing ethanol; and e) distilling ethanol from the fermented material to produce bioethanol.