Ru/MCM-41催化葡萄糖加氢制备山梨醇的研究  

Study on hydrogenation of glucose into sorbitol by Ru/MCM-41 catalyst

作　　者：张军[1] 林鹿[1] 

机构地区：[1]华南理工大学制浆造纸国家重点实验室,广东广州510640

出　　处：《食品工业科技》2011年第12期409-411,共3页Science and Technology of Food Industry

基　　金：国家自然科学基金(50776035;U0733001);教育部博士点基金(20070561038);863计划(2007AA05Z408);国家科技支撑计划(2007BAD34B01);973计划(2010CB732201)资助项目

摘　　要：以MCM-41分子筛为载体,采用甲醛还原法制备Ru/MCM-41催化剂,将其用于葡萄糖氢化制备山梨醇。考察了反应温度、反应时间以及Ru/MCM-41催化剂循环使用次数对山梨醇产率和选择性的影响。实验结果表明:在葡萄糖浓度为10%、催化剂用量为20%(以葡萄糖用量计),反应温度为120℃时,反应1.5h后,葡萄糖转化率达到100%,而山梨醇产率可达94.43%。同时,催化剂循环使用研究表明,Ru/MCM-41是一种较理想的催化剂,可循环使用3～4次。Sorbitol was produced from glucose by hydrogenation reaction with MCM-41 molecular sieve supported Ru catalysts prepared by formaldehyde reduction process. Effects of various factors reaction temperature,reaction time,and recycling index of Ru/MCM-41 on glucose conversion and sorbitol yield were discussed. Experimental results had shown that the highest sorbitol yield of 94. 43% could be got at the temperature of 120℃ and reacted for 1. 5h when the glucose concentration was 10%,the amount of catalyst was 20%（calculating by the dosage of glucose）,and the glucose conversion was as high as 100%. At the mean time,research on catalyst recyling had shown that Ru/MCM-41 was an ideal catalyst for hydrogenation of glucose,which could be recycled three or four times.

关 键 词：MCM-41 Ru/MCM-41 葡萄糖 氢化 山梨醇 

分 类 号：TS202.1[轻工技术与工程—食品科学]