含氮合成气双功能催化制二甲醚的宏观动力学  

The Global Kinetics of Synthesis Dimethyl Ether from Syngas Containing N_2 over Bifunctional Catalyst

作　　者：聂兆广[1] 刘宏伟[1] 刘殿华[1] 应卫勇[1] 房鼎业[1] 

机构地区：[1]华东理工大学化学工程系,上海200237

出　　处：《化学反应工程与工艺》2004年第1期1-7,共7页Chemical Reaction Engineering and Technology

基　　金：上海市重点项目资助(DevelopmentProjectofShanghaiPriorityAcademicDiscipline)。

摘　　要：　在高压磁力搅拌反应釜内,用惰性矿物油为介质,在温度220～260℃,压力3.1～7.2MPa,空速800～2000mL/(g·h),搅拌转速1000r/min以上的条件下,测定了含氮合成气在双功能混合催化剂上直接制取二甲醚的淤浆床宏观动力学,建立了双曲型的动力学模型,获得了模型参数,经统计检验和残差分析证实了模型的可靠性。通过反应前后CO2含量的比较,得到较佳催化剂协同效应时的空速为1000mL/(g·h)。The kinetics of direct synthesis dimethyl ether from syngas containing N_2 by bifunctional mixed catalysts in a slurry autoclave were studied, with the mineral oil used as the inert medium. The experiments were operated under follow conditions: the temperature range was 220～260℃, the pressure range was 3.1～7.2 MPa, the weight hourly space velocity was 800～2000 mL/(g·h) and the stir speed was over 1000r/min. The results of statistical test showed that the model of the kinetics was reliable. The better synergy effect of the bifunctional catalyst was obtained at the space velocity around 1000 mL/(g·h).

关 键 词：催化制 二甲醚 宏观动力学 淤浆床 协同效应 催化剂 温度 压力 搅拌转速 空速 

分 类 号：TQ223.24[化学工程—有机化工]