文献类型：期刊文献

中文题名：环柱状催化剂内强放热复合反应──传质──传热耦合过程研究(Ⅰ)催化剂曲折因子、有效导热系数的测定

英文题名：STUDY ON COUPLING PROCESS OF MULTIPLE REACTIONS-MASS TRANSFER-HEAT TRANSFER IN HOLLOW CYLINDRICAL CATALYSTS WITH STRONG HEAT EFFECT（Ⅰ）EXPERIMENTAL MEASUREMENT OF TORTUOSITY FACTORS AND EFFECTIVE THERMAL CONDUCTIVITY OF CATALYST PELLETS

作者：高崇[1];朱英[2];李树森[2];潘银珍[2];朱炳辰[2]

机构：[1]吉林化工学院化工系;[2]华东理工大学化学工程系,上海200237

年份：1998

卷号：49

期号：5

起止页码：601

中文期刊名：化工学报

外文期刊名：CIESC Journal

收录：CSTPCD;;Scopus;北大核心:【北大核心1996】；CSCD:【CSCD2011_2012】；

基金：国家教委博士点基金!No.9325105

语种：中文

中文关键词：催化剂;环氧乙烷;银;环柱状;强放热复合反应

外文关键词：catalyst;ethylene oxide;tortuosity factor;effective thermal conductivity

摘要：采用经典定态法和改进的单颗粒线反应器法（SPSRM)测定了环柱状环氧乙烷银催化剂的曲折因子，两种方法测定结果十分吻合。提出一种测定固体催化剂颗粒有效导热系数的新方法。该方法简单、方便且不改变催化剂原有的形状及物理结构，可以在催化剂允许使用的任何温度下进行测定，准确度较高。用本方法测定了环氧乙烷合成银催化剂颗粒的有效导热系数，并用于催化剂内部浓度、温度、选择性计算，计算与实验结果吻合良好。
The tortuosity factors of the silver catalyst for ethylene oxide formation with hollow cylindrical shape were measured by classical steady state and dynamic state method (SPSRM).The experimental results of the two methods were almost the same.A new calculation method and an on- line analysis technique with computer were used in SPSRM.These improvements can make the SPSRM experiments more convenient,simple and reliable.A new method for measuring effective thermal conductivity of solid catalyst was developed.The method is simple,convenient and accurate and can be used to plate,cylinder and other shape solid catalysts without changing the shape and physical structure at any reaction temperature.The effective thermal conductivities of ethylene oxide synthesis catalyst with hollow cylindrical shape were measured with this method.Experimental results were used to calculate the distribution of components,temperature and selectivity within the silver catalyst.The calculation results agreed well with experimental data of global kinetics.