化工进展2017，Vol.36Issue(11)：3927-3939,13.DOI:10.16085/j.issn.1000-6613.2017-1285
环氧乙烷水合制乙二醇多相催化剂的最新进展
Advances in heterogeneous catalysts for ethylene glycol production via hydration of ethylene oxide
摘要
Abstract
Mono ethylene glycol(MEG) is an important bulk chemical,yet the self-sufficiency of which in China is not higher than 40％. The method for producing MEG in industry by non-catalytic direct hydration of ethylene oxide ( EO ) under high molar ratio of water to EO is of high-energy-consumption. Hence,it is urgent to develop catalytic hydration of EO with low molar ratio of water to EO. Herein,based on the catalysis and deactivation mechanism,the newly developed resin-based catalysts,metallic oxide-based catalysts,CoⅢ(Salen)-based catalysts and Sn-doped zeolites were introduced in detail and depth for the first time. Moreover,constructive suggestions for overcoming the disadvantages of these catalysts were proposed. It was advocated that the activity,thermal stability and anti-swelling property of ion-exchange resins could be improved by choosing new functional groups and additives such as carbon nanotubes with various draw ratios,graphene with various layers and kinds of nano oxides. It was suggested that the porous niobic acid materials with different acidity could provide higher activity. For the stability improvement of CoⅢ(Salen)-based catalysts,the development of new CoⅢ(Salen) active species by changing organic ligands and counter-ions could be a good consideration. As for improving the activity and active site number of now-available zeolites,it was reasonable to synthesize kinds of metal-doped zeolites with different framework topologies by different methods and metal sources. It was anticipated that this review would play an instructive role to some extent in developing catalysts for producing MEG with low cost and energy consumption in industry.关键词
乙二醇/多相催化剂/环氧乙烷/水合/节能降耗Key words
mono ethylene glycol/heterogeneous catalyst/ethylene oxide/hydration/low cost and energy consumption分类
化学化工引用本文复制引用
陶桂菊,何文军,俞峰萍,李亚男,杨为民..环氧乙烷水合制乙二醇多相催化剂的最新进展[J].化工进展,2017,36(11):3927-3939,13.基金项目
第61批中国博士后科学基金项目(2017M611643). （2017M611643）
