公开(公告)号：US20150072389A1

公开(公告)日：2015-03-12

申请号：US14274265

申请日：2014-05-09

Applicant: API INTELLECTUAL PROPERTY HOLDINGS, LLC

Inventor： Theodora RETSINA ,  Vesa PYLKKANEN ,  Rolf RYHAM

IPC: C13K1/02 ,  C08H7/00 ,  C01F11/46 ,  C12P7/10

CPC classification number: C13K1/02 ,  C01F11/46 ,  C08B3/00 ,  C08B37/0057 ,  C08H6/00 ,  C08H8/00 ,  C12P7/10 ,  C12P7/40 ,  C12P2201/00 ,  C12P2203/00 ,  D21C3/04 ,  D21C3/20 ,  D21C11/0007 ,  Y02E50/16 ,  Y02P40/44

Abstract: A method for the fractionation of lignocellulosic materials into reactive chemical feedstock in a batch or semi continuous process by the stepwise treatment with aqueous aliphatic alcohols in the presence of sulfur dioxide or acid. Lignocellulosic material is fractionated in a fashion that cellulose is removed as pulp, or converted to esterified cellulose, cooking chemicals are reused, lignin is separated in the forms of reactive native lignin and reactive lignosulfonates and hemicelluloses are converted into fermentable sugars, while fermentation inhibitors are removed. In an integrated vapor compression stripper and evaporator system, aliphatic alcohol is removed from a liquid stream and the resulting stream is concentrated for further processing.

Abstract translation: 通过在二氧化硫或酸的存在下用脂族醇水溶液分级处理将分批或半连续方法中的木质纤维素材料分馏成反应性化学原料的方法。 将木质纤维素材料以纤维素作为纸浆去除或转化为酯化纤维素，蒸煮化学品被再利用，木质素以反应性天然木质素和反应性木质素磺酸盐的形式分离，半纤维素转化为可发酵糖，而发酵抑制剂为 删除。 在集成蒸汽压缩汽提器和蒸发器系统中，从液体流中除去脂族醇，并将所得流浓缩以进行进一步处理。