化工进展2023，Vol.42Issue(12)：6301-6309,9.DOI:10.16085/j.issn.1000-6613.2023-0075
Pt-WOx系催化剂上甘油氢解制1,3-丙二醇的研究进展
Research progress of hydrogenolysis of glycerol to 1,3-propanediol over supported Pt-WOx catalysts
摘要
Abstract
The development of biodiesel is of great scientific significance for achieving carbon emission reduction and energy substitution.The high-value green conversion of biodiesel by-product glycerol are conducive to the development and extension of the biodiesel industry chain.1,3-Propanediol produced by catalytic hydrogenation of glycerol has become a research hotspot,and the design of catalysts with high activity and selectivity is the key.The dehydration-hydrogenation mechanism,direct hydrogenation mechanism and redox mechanism of glycerol to 1,3-propanediol on Pt-WOx supported catalysts are elaborated.Pt dispersion,WOx state and Pt-WOx interface contact behavior in Pt-WOx catalysts are further analyzed as they are the main influence factors on the catalytic performance.Pt dispersion affects the activation of H2 and the further hydrogenation of intermediates.The WOx state not only promotes the dispersion of Pt,but also closely relates with the Brönsted acid site of the catalyst.The Pt-WOx interface affects the hydrogen overflow on the catalyst surfaces and the in-situ formation of the Brönsted acid site.Finally,it is proposed that Pt-WOx catalysts should be rational designed from these three aspects,and the influence of each component and their interactions on the direct catalytic hydrogenation of glycerol should be deeply explored.Reaction mechanism and the influence of the different hydrogenation mode on the selective hydrogenation of glycerol should be investigated in order to promote the large-scale development and application of the hydrogenation of glycerol to 1,3-propanediol.关键词
甘油/氢解/1,3-丙二醇/Pt-WOx催化剂/反应机理Key words
glycerol/hydrogenolysis/1,3-propanediol/Pt-WOx catalysts/reaction mechanism分类
化学引用本文复制引用
陈宇晴,齐随涛,杨伯伦..Pt-WOx系催化剂上甘油氢解制1,3-丙二醇的研究进展[J].化工进展,2023,42(12):6301-6309,9.基金项目
国家自然科学基金重点项目(22038011). （22038011）
