非定态SO_2转化器稳定性研究  

Suudy on the Behaviors of Unsteady State Fixed bed Reactor with Flow Reversal

作　　者：王辉[1] 肖博文[1] 袁渭康[1] 

机构地区：[1]华东理工大学联合化学反应工程研究所

出　　处：《化学工程》1997年第4期26-29,16,共5页Chemical Engineering(China)

基　　金：国家自然科学基金

摘　　要：以非定态ＳＯ２转化器的机理模型为基础，通过计算机模拟研究了气浓、气速对非定态固定床反应器的影响，对于冶炼厂较高浓度的ＳＯ２尾气宜采用中间换热式的转化器。本文详细研究了冷却量和换向周期对中间散热式转化器的影响，发现换热量和换向周期均是可以调优的参量。对于大多数冶炼厂的烟气，最佳移热分率为３％～４％，层间温度４２０～４４０℃，而换向周期基本上与气量成反比。This article is based on the mechanism of unsteady state SO 2 converter.The effect of gas concentration and velocity on the fixed bed converter are studied with the help of computer simulation.Heat removal converter is recommended to deal with the high concentration tail gas (SO 2) from smeltery.The influence of cooling capacity and reversing cycle on the operational function of heatremoval converter is studied.It is found that the optimum temperature between two layers is 420～440℃,the optimum heat removal rate is 3%～4%,and the reversing cycle is inversely proportional to gas capacity.The corresponding control strategy is also given.

关 键 词：二氧化硫 非定态转化 稳定性 转化器 烟气 冶炼 

分 类 号：X756.01[环境科学与工程—环境工程] X701