详细信息

活化甲基二乙醇胺溶液吸收CO_2的动力学  ( EI收录)  

Kinetics Study on Absorption of Carbon Dioxide into Activated MDEA Solutions

文献类型:期刊文献

中文题名:活化甲基二乙醇胺溶液吸收CO_2的动力学

英文题名:Kinetics Study on Absorption of Carbon Dioxide into Activated MDEA Solutions

作者:张成芳[1];徐国文[1];钦淑均[1];王挹薇[1]

机构:[1]华东化工学院

年份:1994

卷号:8

期号:1

起止页码:55

中文期刊名:高校化学工程学报

外文期刊名:Journal of Chemical Engineering of Chinese Universities

收录:CSTPCD;;EI(收录号:1995041504474);Scopus;CSCD:【CSCD2011_2012】;

基金:国家教委博士点基金

语种:中文

中文关键词:甲基二乙醇胺;吸收;二氧化碳

外文关键词:Kinetics;Absorption of carbon dioxide;MDEA

摘要:采用圆盘塔在常压、温度30~70℃、MDEA(甲基二乙醇胺)浓度1.75~4.21kmol/m3、哌嗪浓度0.041~0.21kmol/m3条件下,研究了活化MDEA吸收CO2的动力学。动力学数据证实了CO2与哌嗪之间进行着拟一级均匀[4]活化反应机理,其吸收速率可由并行拟一级快速可逆反应吸收来表示: 式中:kp=2.98×10(11)exp(-6424/T),表观活化能为53.41kJ/mol。
A disc column was used to investigate the kinetics of carbon dioxide absorption into activated MDEA solutions under atmospheric pressure,temperature of 30~70℃ and conecentration of 1. 71~4. 21 kmol/m3 for MDEA and 0. 041~0. 21 kmol/m3 for piperazine. The kinetics data demonstrated that the mechanism of pseudo-first-order homogeneous activation is conducted between CO2 and piperazine,and rate of absorption can be described by an expression of paralled two pseudofirst-order rapid reversible reaction ,that is where Kp,the apparent activation energy is 53.41KJ/mol.

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