摘要
Abstract
The huge surplus of by-product glycerol due to the rapid development of biodiesel industry, people were motivated to find a way to convert glycerol to high value-added chemicals. This review summarized the catalytics and mechanisms of the glycerol to 1,2-propanediol. Catalyst is the key factor in the hydrogenolysis of glycerol to 1,2-propanediol. At present,Cu,Ni,Ru,Pt,Rh-based catalysts are often used in hydrogenolysis of glycerol. Among them, Cu-based catalysts are the most widely studied. The activity,selectivity,stability of Cu-based catalysts, and product separation are affected by the supports,promoters,preparations,solvent and process conditions. To improve the performance of glycerol hydrogenolysis, it is necessary to strengthen the basic researches on the mechanism for hydrogenolysis of glycerol and catalyst preparation technologies. Composited metal catalysts, composite multifunctional catalysts and glycerol in situ hydrogenolysis had been received much attention due to their own advantages. The regeneration of catalyst and deactivation mechanism are new directions for the future researches.关键词
甘油/氢解/1,2-丙二醇/催化剂/加氢/载体Key words
glycerol/hydrogenolysis/1/2-propanediol/catalyst/hydrogenation/support分类
化学化工
