文献类型：期刊文献

英文题名：CELLULOSE TRANSFORMATION INTO METHYL GLUCOSIDES CATALYZED BY H3PW12O40: ENHANCEMENT OF IONIC LIQUID PRETREATMENT

作者：Zheng, Weizhong[1];Cui, Yanjin[1];Xu, Zhimei[1];Zhao, Ling[1];Sun, Weizhen[1]

机构：[1]East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2018

卷号：96

期号：6

起止页码：1250

外文期刊名：CANADIAN JOURNAL OF CHEMICAL ENGINEERING

收录：;EI(收录号：20174904498144);WOS:【SCI-EXPANDED(收录号:WOS:000431508600002)】；

基金：The financial support by the Scientific Research Foundation for the Returned Overseas Chinese Scholars is gratefully acknowledged.

语种：英文

外文关键词：cellulose alcoholysis; ionic liquid; heteropolyacid

摘要：The efficient alcoholysis of cellulose to monosaccharide is of great importance to produce fuels and fine chemicals from renewable feedstocks. In this work, the conversion of cellulose into methyl glucosides was investigated by combining the pretreatment process of the ionic liquid 1-allyl-3-methylimidazolium chloride ([Amim]Cl) and the subsequent alcoholysis catalyzed by the heteropolyacid H3PW12O40. The X-ray diffraction characterization of [Amim]Cl-pretreated cellulose shows that the pretreatment process could transform cellulose I to cellulose II resulting in the loss of crystalline structure. The subsequent alcoholysis of the pretreated cellulose catalyzed by H3PW12O40 proves to be a highly efficient way to convert cellulose to methyl glucosides in the medium of methanol. Under the optimized conditions of the [Amim]Cl pretreatment and alcoholysis reaction, the highest yield of methyl glucosides reaches up to 70.2 mass%, which is much higher than those previously published without pretreatment process.