沸石催化剂内液相交互扩散系数的测定  

Measurement of the Inter Liquid Diffusion Coefficients in Zeolite Catalysts

作　　者：李学峰[1] 郑鑫源[1] 傅吉全[1] 

机构地区：[1]北京服装学院化工研究所,北京100029

出　　处：《化学工业与工程》2004年第5期376-378,共3页Chemical Industry and Engineering

摘　　要：采用简单实用的试验方法研究了苯和异丙苯在沸石内的交互扩散情况,通过测定不同时间点的扩散质的浓度,利用适宜的数学模型和最小二乘法关联出两种体系中各扩散质在沸石催化剂内的交互扩散系数。可以为苯烷基化反应的工业模拟提供重要的基础数据。The inter diffusion characteristics of benzene and isopropyl benzene in zeolite catalysts were studied by the simple and practical method.Based on measuring the different concentrations of diffusion solute in all time,the inter coefficients of all diffusion solute in zeolite catalysts were correlated in terms of rational mathematical model and least square fitting.This can supply fundamental data for the industrial simulation of benzene alkylation.

关 键 词：沸石催化剂 液相交互扩散系数 最小二乘法 

分 类 号：TQ426.7[化学工程]