合成甲醇基元过程瞬态动力学的模型化(Ⅱ)——合成甲醇瞬态动力学  

MODELING OF ELEMENTARY PROCESS KINETICS FOR METHANOL SYNTHESIS (Ⅱ )A TRANSIENT KINETIC MODEL OF METHANOL SYNTHESIS FROM CO/CO_2/H_2

作　　者：陈晓春[1] 饶国瑛[1] 李成岳[1] 

机构地区：[1]北京化工大学化学工程学院,北京100029

出　　处：《化工学报》1999年第2期152-158,共7页CIESC Journal

基　　金：国家自然科学基金(No.29476223);原化学工业部(No.95-23-01)资助项目

摘　　要：在基元过程序列结构判识的基础上,以傅立叶变换红外光谱仪(FTIR)气体池作为检测器,采用动态响应技术,进行了合成甲醇过程瞬态动力学的实验研究,得到了微型反应器尾气中各主要物种的浓度对反应器进料浓度阶跃变化的动态响应数据。基于瞬态速率模型对实验数据的拟合,得到了由H_2/CO/CO_2合成甲醇初步的瞬态动力学关系。On the basis of the identification of the elementary step sequence on the active surface of the catalyst, a series of transient response experiments with step changes in feed composition were carried out, by measuring the variation of the tail - gas composition of the micro - reactor with an on - line FTIR detector. A transient model of the reactor was developed. The values of the kinetic parameters for all elementary steps were estimated by fitting the solution of the model with experimental response data. The results showed that the prediction of the model is qualitatively consistent with experimental observation.

关 键 词：模型化 瞬态动力学 甲醇 合成 

分 类 号：TQ223.121[化学工程—有机化工]