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2. 发明申请

WO2012156941A1 PROCESS FOR ACETIC ACID REMOVAL FROM PRETREATED BIOMASS 审中-公开
标题翻译：从预处理生物量中除去乙酸的方法
公开(公告)号：WO2012156941A1
公开(公告)日：2012-11-22
申请号：PCT/IB2012/052490
申请日：2012-05-17
申请人： BETA RENEWABLES S.p.A. , FERRERO, Simone , CORBELLANI, Paolo
发明人： FERRERO, Simone , CORBELLANI, Paolo
IPC分类号： C12P7/10 , B01D61/02
CPC分类号： D21B1/02 , B01D61/022 , C12P7/10 , C12P2201/00 , D21C1/02 , D21C1/04 , D21C11/0042 , Y02E50/16
摘要： The process for treating a ligno-cellulosic biomass feed stream comprised of solids, C5's, C6's, lignin, and water comprises the steps of: - pretreating the ligno-cellulosic biomass feed stream by contacting the ligno-cellulosic biomass with water in the temperature range of 40 to 210 °C to create a pre-treated ligno- celluosic biomass comprised of a pre -treatment ligno-cellulosic biomass liquid comprised of suspended solids, C5's, C6's, and acetic acid, wherein the ratio of the C6's to C5's is less than 0.8 to 1.0, and a pre-treated ligno-cellulosic biomass solids; - separating a portion of the pre -treatment ligno cellulosic biomass liquid from the pre- treated ligno-cellulosic biomass feed stream; - separating a portion of the suspended solids from the pre -treatment ligno-cellulosic biomass liquid using filters, centrifuge or combination thereof, to create a clarified liquid stream, and - nano filtering a portion of the clarified liquid stream to create a nano-filtered permeate stream comprised of acetic acid and water and a nano-filtered retentate stream comprised of C5's, C6's, acetic acid and water, wherein the ratio of acetic acid to the total amount of C5's, C6's in the clarified liquid stream is greater than the ratio of the acetic acid to the total amount of C5's, C6's in the nano-filtered retentate.
摘要翻译：用于处理由固体C5，C6，木质素和水组成的木质纤维素生物质进料流的方法包括以下步骤： - 通过使木质纤维素生物质与水在温度范围内接触来预处理木质纤维素生物质进料流 40至210℃，以产生预处理的木质纤维素生物质，其由包含悬浮固体，C5，C6和乙酸的预处理木质纤维素生物质液体组成，其中C6与C5的比例较小超过0.8至1.0，以及预处理的木质纤维素生物质固体; - 将一部分预处理木质纤维素生物质液体与预处理的木质纤维素生物质进料流分离; - 使用过滤器，离心机或其组合将一部分悬浮固体与预处理木质纤维素生物质液体分离，以产生澄清的液体流，以及 - 将一部分澄清液体流过滤以产生纳滤由乙酸和水组成的渗透物流和由C5，C6，乙酸和水组成的纳滤过的滞留物流，其中乙酸与澄清液体流中的C 5的总量的比例大于该比例的乙酸与C5的总量，C6在纳米过滤的滞留物中。

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