Complete kinetic model for esterification reaction of lauric acid with glycerol to synthesize glycerol monolaurate
作者机构:Research Center of the Ministry of Education for High Gravity Engineering and TechnologyBeijing University of Chemical TechnologyBeijing 100029China State Key Laboratory of Organic-Inorganic CompositesBeijing University of Chemical TechnologyBeijing 100029China Petrochemical Research InstituteChina National Petroleum CorporationBeijing 102206China
出 版 物:《Chinese Journal of Chemical Engineering》 (中国化学工程学报(英文版))
年 卷 期:2024年第70卷第6期
页 面:211-221页
核心收录:
学科分类:081702[工学-化学工艺] 080103[工学-流体力学] 0817[工学-化学工程与技术] 08[工学] 0807[工学-动力工程及工程热物理] 0703[理学-化学] 0701[理学-数学] 0702[理学-物理学] 0801[工学-力学(可授工学、理学学位)]
基 金:supported by the National Research and Development Program of China(2021YFC3001100) the National Natural Science Foundation of China(22288102)
主 题:Glycerol monolaurate p-Toluenesulfonic acid Esterification Kinetics Mass transfer
摘 要:Glycerol monolaurate(GML)is a widely used industrial chemical with excellent emulsification and antibacterial *** direct esterification of glycerol with lauric acid is the main method to synthesize *** this work,the kinetic process of direct esterification was systematically studied using p-toluenesulfonic acid as catalyst.A complete kinetic model of consecutive esterification reaction has been established,and the kinetic equation of acid catalysis was *** isomerization reactions of GML and glycerol dilaurate were *** was found that the reaction was an equilibrium reaction and the reaction rate was faster than the esterification *** kinetic equations of the consecutive esterification reaction were obtained by experiments as k_(1)=(276+92261Xcat)exp(-37720/RT)and k_(2)=(80+4413Xcat)exp(-32240/RT).The kinetic results are beneficial to the optimization of operating conditions and reactor design in GML production process.