液相中H_2S与SO_2反应动力学研究  

A Study on Reaction Kinetics of H_2S and SO_2 in Liquid Phase

作　　者：张永[1] 郑志胜[1] 张成芳[1] 

机构地区：[1]华东理工大学化工工艺研究所,上海200237

出　　处：《高校化学工程学报》2003年第3期279-283,共5页Journal of Chemical Engineering of Chinese Universities

摘　　要：在鼓泡反应器中研究了二氧化硫和硫化氢在三种不同pH值溶液,即水溶液、盐酸-柠檬酸钠缓冲溶液和碳酸钠-碳酸氢钠缓冲溶液中的反应行为。结果表明,液相中两者的反应主要是发生在硫化氢分子和亚硫酸氢根离子之 间。在对实验数据分析的基础上,得出了三种液相溶液中的统一反应速率方程为:-230.5HSHSOrkcc=,其中421391.53110exp(-)kT=矗从罨芪?7.78kJ mol-1。The reaction behaviors of H2S and SO2 in three different pH solutions (water, buffer solution of chlorhydric acid-sodium citrate and buffer solution of sodium carbonate-sodium bicarbonate) were studied through a bubble reactor. The results indicate that reaction mainly happens between H2S and HSO3-. On the basis of experimental data, the reaction kinetic equation of H2S and SO2 in liquid phase for three different pH solutions was obtained as follows: -230.5HSHSOrkCC=, where 421391.53110exp()kT=?, the activity energy in this reaction is 17.78 kJmol-1.

关 键 词：硫化氢 二氧化硫 反应动力学 液相 

分 类 号：TE644[石油与天然气工程—油气加工工程] O643.13[理学—物理化学]