裂解碳五与甲醇合成甲基叔戊基醚反应体系分析  

Reaction System Analysis of Synthesizing Tert-Amyl Methyl Ether with Methanol and C_5 Fraction from Steam Cracking

作　　者：于永生[1] 刘立新[1] 余自明[1] 

机构地区：[1]信阳师范学院化学化工学院,河南信阳464000

出　　处：《信阳师范学院学报（自然科学版）》2008年第2期200-202,256,共4页Journal of Xinyang Normal University(Natural Science Edition)

基　　金：中国石油中青年创新基金项目(05E7002)

摘　　要：详细分析了裂解碳五馏分与甲醇进行醚化反应体系中原料的加氢处理、热力学和动力学特点.裂解碳五经选择性加氢后,可以有效地除去原料中的二烯烃,满足醚化反应的需要;醚化反应体系存在三对可逆放热反应,为提高异戊烯的转化率,需综合考虑反应速度与化学平衡的影响;反应体系是强的非理想体系,描述体系的热力学和动力学方程需要以活度的形式表示,开发出适用范围宽的动力学模型,将其应用到工业生产中是合理利用裂解碳五的有效途径.From the aspects of selectively hydrogenating C5 fractions, thermodynamic and kinetic properties, the reaction system of etherifing C5 fractions with methonal was analyzed theoretically. The components of di-ofines in the Cs fractions can be effectively removed by selective hydrogenation. The process of etherification involves three simultaneous reversible reactions-the etherification and the isomerization between the isoamylenes. To improve the conversion of isoamylenes, the factors of reaction rates and chemical equilibrium should be considered together. Because of the strong non-ideality of the liquid reaction mixture, the thermodynamic and kinetic equations should be written in terms of activities. It＇ s an effective way to develop a proper kinetic model and apply it in the commercial and process design by using C5 fractions.

关 键 词：甲基叔戊基醚 裂解 碳五 加氢 热力学 动力学 

分 类 号：TQ223.24[化学工程—有机化工]