环戊烯合成环戊基甲醚的反应动力学研究

摘要

研究了甲醇与环戊烯合成环戊基甲醚（CPME）的宏观反应动力学。环戊烯与甲醇摩尔比为1∶1，温度区间为115～130℃，采用离子交换树脂催化剂，反应在固定床反应器内发生，在液相条件下得到了相应的动力学数据。结果表明，甲醇优先紧紧地吸附在催化剂的活性位上，环戊烯吸附在相同的催化剂活性位上参与反应，反应呈现明显的一级反应的特征。采用非线性曲线拟合方法处理实验数据，建立了环戊烯醚化反应动力学方程。用动力学模型求得的计算值与实验值的相对误差均在5％以内，说明所建动力学模型能较好的描述环戊烯醚化反应，具有良好的外推性。%The kinetics of synthesis cyclopentyl methyl ether (CPME)using methanol and cyclopentene was studied.The molar ratio of methanol to cyclopentene is 1∶1 and the experimental temperature ranged from 115 ~130 ℃.The rate data was obtained in a fixed-bed reactor with ion exchange catalyst.Result showed that methanol adsorbed on the active sites strongly,the cyclopentene adsorbed on the same active sites,and the reaction follows an apparent first-order behavior.The nonlinear curve fitting method was a-dopted to deal the experimental data and the kinetic equation was established.Compared the calculated values with the experimental values,the relative error all less than 5%.This result showed that the equa-tion could well describe the etherification reaction and had a favorable extrapolation.