公开(公告)号：EP3271406A1

公开(公告)日：2018-01-24

申请号：EP16765608.1

申请日：2016-03-16

申请人： Georgia-Pacific LLC

发明人： CARROLL, Michael E. ,  KROON, Johannes A. ,  PARTON, Rudy F. M. J. ,  SEN, Subrata ,  WOESTENBORGHS, Pierre L.

IPC分类号： C08B37/14 ,  C08B15/08 ,  C08B1/00

CPC分类号： C08H8/00 ,  C07C51/43 ,  C08B1/00 ,  C08B15/08 ,  C08B37/0057 ,  C08B37/14

摘要： Methods and systems are provided for improved liquefaction of a lignocellulosic biomass. The methods include reacting a lignocellulosic biomass slurry at mild conditions for a short period to produce a first reaction mixture having a reduced viscosity as compared to the lignocellulosic biomass slurry and that is substantially free of levulinic acid and hydroxymethylfurfural. The methods further include separating the first reaction mixture into a solid fraction and a liquid fraction, the solid fraction having a majority of lignin from the lignocellulosic biomass slurry and the liquid fraction having a majority of hemicellulose and greater than about 30% by weight of cellulose from the lignocellulosic biomass slurry. The method advantageously prevents or eliminates the formation of tar and/or char.