公开(公告)号：US20090176286A1

公开(公告)日：2009-07-09

申请号：US12093630

申请日：2006-11-15

申请人： Ryan P. O'Connor ,  Robert Wooley ,  Jeffrey John Kolstad ,  Robert Thomas Kean ,  David A. Glassner ,  Beth Mastel ,  Jon Michael Ritzenthaler ,  Robert Henry Birk ,  Jeffrey Warwick ,  James R. Hettenhaus ,  Rebecca Kerin Brooks

发明人： Ryan P. O'Connor ,  Robert Wooley ,  Jeffrey John Kolstad ,  Robert Thomas Kean ,  David A. Glassner ,  Beth Mastel ,  Jon Michael Ritzenthaler ,  Robert Henry Birk ,  Jeffrey Warwick ,  James R. Hettenhaus ,  Rebecca Kerin Brooks

IPC分类号： C12P7/56 ,  C12P7/10 ,  C07G1/00 ,  C07H1/08

CPC分类号： C08H8/00 ,  C08B37/0003 ,  C08B37/0057 ,  Y02E50/16

摘要： The invention herein is an efficient, flexible biomass fractionation process comprising digesting a lignocellulosic-biomass material at about 120-220° C. and a pH of less than about 4, in an aqueous mixture containing an effective concentration of at least one solvent for lignin, and separating to recover a solid phase that contains a large fraction of the cellulose originally in the starting lignocellulosic material and a liquid phase that contains most of the lignin and hemicellulose originally in the starting lignocellulosic biomass. The process can produce a solid phase that contains at least 75% cellulose and less than 10% lignin. The cellulose-rich solid product can be converted very efficiently to glucose. The solid product can also be used in commercial pulp applications, such as papermaking or fluff pulp. Hemicellulose sugars and lignin can be used directly or converted to other products.

摘要翻译： 本发明是一种有效，灵活的生物质分馏方法，包括在含有有效浓度的至少一种木质素溶剂的含水混合物中，在约120-220℃和pH小于约4℃下消化木质纤维素生物质材料 并且分离以回收原始在起始木质纤维素材料中含有大部分纤维素的固相，以及最初在起始木质纤维素生物质中含有大部分木质素和半纤维素的液相。 该方法可以产生含有至少75％纤维素和小于10％木质素的固相。 富含纤维素的固体产物可以非常有效地转化为葡萄糖。 固体产品也可用于商业纸浆应用，如造纸或绒毛浆。 半纤维素糖和木质素可直接使用或转化为其他产品。