摘要
Abstract
Using biomass methyl biooleate(MO)as raw material,1-decene and methyl 9-decenoate could be simultaneously prepared by cross-metathesis reaction with ethylene.Firstly,the effects of three commonly used olefin metathesis catalysts on the system were evaluated,and Grubbs 1 was selected as the best catalyst.The conversion rate of methyl oleate and the yield of 1-decene and methyl 9-decenoate were taken as evaluation indexes to explore the process conditions of Grubbs I catalyst.The results showed that when the temperature was 40 ℃,the ethylene pressure was 0.2 MPa,the reaction time was 2 h,the catalyst dosage was 1％of methyl oleate,the solvent was toluene,and the concentration was 0.1 mol/L,the conversion rate of methyl oleate was 97.4％,the yield and selectivity of 1-decene were 97.4％and 100％,respectively,and the yield and selectivity of methyl 9-decenoate were 76.4％and 78.4％,respectively.Then,the process conditions of Grubbs Ⅱ catalyst were explored.When ethylene pressure was 0.5 MPa,temperature was 40 ℃,reaction time was 1 h,and catalyst dosage was 0.5％of methyl oleate,the yield of 1-decene reached 76.4％,the yield of methyl 9-decenoate was 80.1％,and the conversion rate was 92.7％.关键词
Grubbs催化剂/生物质/1-癸烯/9-癸烯酸甲酯Key words
Grubbs catalyst/biomass/1-decene/methyl 9-decenoate分类
化学化工
