阳离子交换树脂催化合成月桂酸甲酯的动力学研究

Kinetic Study on Synthesis of Methyl Laurate Catalyzed by Cation Exchange Resin

通过对以Amberlyst 39树脂为催化剂合成月桂酸甲酯的实验研究,计算得到该反应动力学数据,为月桂酸甲酯化反应的工业化设计提供数据和理论的参考。采用PH、E-R、LHHW三种不同的动力学模型对该反应进行拟合,结果表明E-R和LHHW模型的计算值与实验值吻合度都较高,说明在该过程中水的吸附和脱附过程的动力学可忽略,因此E-R模型最适用于表达该反应过程。

The preparation of methyl laurate with Amberlyst 39 resin as catalyst was studied, and the kinetic description of the reaction process were obtained. Three different kinetic models, PH, E-R, LHHW, were used to fit the reaction. The results showed that the calculated values of E-R and LHHW models were in good agreement with the experimental values, while the parameters of E-R model were less than those of LHHW model.Therefore, E-R model was most suitable to express the reaction process.