公开(公告)号：US20220002330A1

公开(公告)日：2022-01-06

申请号：US17296605

申请日：2019-11-26

申请人： BOARD OF TRUSTEES OF MICHIGAN STATE UNIVERSITY

发明人： Mikhail Redko ,  JamesE. Jackson ,  Christopher M. Saffron ,  Leo Lacivita

IPC分类号： C07G1/00 ,  A23K20/163 ,  C08B1/00

摘要： The disclosure relates to methods for extracting lignin from lignocellulosic biomass using volatile trialkylamines. A lignocellulosic biomass is combined with an aqueous extraction solution including the trialkylamine and water to provide a biomass extraction mixture that can at least partially extract lignin from the lignocellulosic biomass. The method further includes removing the trialkylamine from the biomass extraction mixture. The method further relates to the utilization of the resulting materials. For example, the lignin extract can be used to make carbon fibers, carbon-carbon materials, or polyamines. The delignified biomass can be used as feed for animals, fungi and/or bacteria. Also, the cellulosic or carbohydrate components of the delignified biomass can be hydrolyzed into pentoses and/or hexoses, which can be used as a feed or starting material for the subsequent conversion into other products. Acetic acid, removed from the biomass in form of trialkylammonium acetate, can be recovered from the mixture for further use or conversion into other chemicals.