甲苯气相选择性氧化制苯甲醛——反应工艺条件及动力学研究  

CATALYTIC VAPOR PHASE OXIDATION OF TOLUENE TO BENZALDEHYDE ——STUDY ON PROCESS CONDITION AND KINETICS

作　　者：盛梅[1] 林西平[1] 栗洪道[1] 吴泽彪 

机构地区：[1]江苏石油化工学院化工系

出　　处：《石化技术》1998年第4期217-219,共3页Petrochemical Industry Technology

摘　　要：研究了甲苯在Ｆｅ－Ｍｏ－Ｏ催化剂作用下，空气选择氧化制苯甲醛的反应。考察了氧气／甲苯（摩尔比）、反应温度、空时等因素对甲苯转化率和苯甲醛选择性的影响。动力学结果表明，反应速率控制步骤为还原态的催化剂被氧化再生，甲苯反应级数为１。The vapor-phase air oxidation of toluene to benzaldehyde over a Fe-Mo-O catalyst was investigated. The conversion and selectivity to benzaldehyde as a function of several variables, such as the feed ratio of oxygen to toluene, the reaction temperature and the reciprocal of space velocity were also studied. Kinetic studies showed that the reaction was controlled by the rate of the oxidation of the reduced catalyst, and the rate was first order with respect to toluene and was independent of the oxygen concentration. The rate expression r T=K 1K 2y T/(K 1y T+K 2) fit the data best.

关 键 词：甲苯 苯甲醛 选择性氧化 动力学 

分 类 号：TQ244[化学工程—有机化工]