CM－3－1催化剂上甲醇脱水生成二甲醚的动力学研究Ⅰ．本征动力学

Study on the kinetics of methanol dehydration to DME on CM 3 1 catalyst Ⅰ. Intrinsic kinetics

采用等温积分反应器研究了常压下甲醇在ＣＭ－３－１催化剂上脱水生成二甲醚的本征动力学，得到的动力学方程为：γＭ＝８．４２４５×１０１０ｅ－１２５４３６ＲＴｙＭ１．９８８ｙＤ－０．１３７ｙＷ０．１３６（１－ｙＤｙＷＫｐｙ２Ｍ）（ｍｏｌ／ｇ·ｈ）该动力学方程可园整为：γＭ＝５．５０×１０１０ｅ－１２２８６７ＲＴｙ２Ｍ（１－ｙＤｙＷＫｐｙ２Ｍ）（ｍｏｌ／ｇ·ｈ）该催化剂是化工部西南化工研究院开发的气相法甲醇脱水制取二甲醚催化剂，已在广东中山精细化工厂投入工业使用。

he intrinsic kinetics of methanol dehydration to dimethyl ether (DME) on CM 3 1 catalyst is studied in an isothermal integral reactor at atmospheric pressure. The kinetics equation obtained is: γ M=8.4245×10 10 e -125436R T y M 1.988 y D -0.137 y W 0.136 (1- y D y W k p y 2 M) (mol/g·h) and it can also be simplified as γ M=5.50×10 10 e -122867R T y 2 M(1- y D y W k p y 2 M) (mol/g·h) The catalyst CM 3 1, developed by the Southwest Research Institute of Chemical Industry, for gas phase methanol dehydration to DME has been successfully used in Zhongshan Fine Chemical Complex, Guangdong.