-
公开(公告)号:WO2016149300A1
公开(公告)日:2016-09-22
申请号:PCT/US2016/022539
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.
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.
摘要翻译: 提供了用于改善木质纤维素生物质液化的方法和系统。 所述方法包括使木质纤维素生物质浆料在温和条件下短时间反应以产生与木质纤维素生物质浆料相比具有降低的粘度并且基本上不含乙酰丙酸和羟甲基糠醛的第一反应混合物。 所述方法还包括将第一反应混合物分离成固体部分和液体部分,固体部分具有来自木质纤维素生物质浆料的大部分木质素和具有大多数半纤维素的液体部分和大于约30重量%的纤维素 来自木质纤维素生物质浆料。 该方法有利地防止或消除焦油和/或焦炭的形成。