Patent ID: 8835156
Filing Date: 2014-09-16
Classification: C12P,D21C,Y02E

Abstract:
1. A method for pretreating non-wood lignocellulosic material containing less than 5% (w/w) starch and less than 5% (w/w) sugar for use in a process for production of ethanol from lignocellulose, said pretreating comprising the steps of: a) adding organic acid or organic acid-producing bacteria to the lignocellulosic material; b) storing the lignocellulosic material in the presence of the organic acid for a period of at least two weeks in an atmosphere of less than 5% oxygen to obtain organic acid-impregnated material; and c) heating the organic acid-impregnated material at a temperature of at least 160° C. to obtain pretreated lignocellulosic material, wherein no, or substantially no, inorganic acid or base, including SO