公开(公告)号：US10087476B2

公开(公告)日：2018-10-02

申请号：US15034867

申请日：2014-12-04

Applicant: Iogen Corporation

Inventor： Brian E. Foody ,  Kristin Martens ,  Patrick J. Foody ,  Jeffrey S. Tolan

IPC: C07G1/00 ,  C08H8/00 ,  C12P7/04 ,  C12P7/10 ,  C12P19/02 ,  C12P19/14 ,  D21C1/02 ,  D21C3/04 ,  D21C11/00 ,  C08H7/00

Abstract: A process for hydrolyzing a pretreated lignocellulosic feedstock is disclosed herein. The process comprises hydrolyzing the pretreated lignocellulosic feedstock with an enzyme mixture comprising at least cellulase enzymes to produce a hydrolyzed slurry comprising glucose and lignin solids. The hydrolyzing is conducted in the presence of a polymer, such as an aliphatic polyether. A solids-liquid separation is conducted to recover lignin solids from a process stream comprising the lignin solids and the polymer. A process stream is then obtained comprising recovered lignin solids resulting from the solids-liquid separation. Also provided are processes for recovering the polymer from the lignin solids and/or from solution.

公开(公告)号：US20160273011A1

公开(公告)日：2016-09-22

申请号：US15034867

申请日：2014-12-04

Applicant: IOGEN CORPORATION

Inventor： Brian E. Foody ,  Kristin Martens ,  Patrick J. Foody ,  Jeffrey S. Tolan

IPC: C12P19/14 ,  C12P7/10 ,  C12P7/04 ,  C12P19/02

CPC classification number: C12P19/14 ,  C07G1/00 ,  C08H6/00 ,  C08H8/00 ,  C12P7/04 ,  C12P7/10 ,  C12P19/02 ,  C12P2201/00 ,  D21C1/02 ,  D21C3/04 ,  D21C11/0007 ,  Y02E50/16

Abstract: The present invention relates to a process for hydrolyzing a pretreated lignocellulosic feedstock. The process comprises hydrolyzing the pretreated lignocellulosic feedstock with an enzyme mixture comprising at least cellulase enzymes to produce a hydrolyzed slurry comprising glucose and lignin solids. The hydrolyzing is conducted in the presence of a polymer, such as for example an aliphatic polyether. A solids-liquid separation is conducted to recover lignin solids from a process stream comprising the lignin solids and the polymer. A process stream is then obtained comprising recovered lignin solids resulting from the solids-liquid separation. Also provided are processes for recovering the polymer from the lignin solids and/or from solution.

Abstract translation: 本发明涉及一种水解预处理的木质纤维素原料的方法。 该方法包括用至少包含纤维素酶的酶混合物水解预处理的木质纤维素原料，以产生包含葡萄糖和木质素固体的水解浆料。 水解在聚合物如脂族聚醚存在下进行。 进行固体 - 液体分离以从包含木质素固体和聚合物的工艺流中回收木质素固体。 然后获得包含由固体 - 液体分离产生的回收的木质素固体的工艺流。 还提供了从木质素固体和/或从溶液中回收聚合物的方法。