ON THE EFFECT OF BASICITY ON THE KINETICS OF CO2 ABSORPTION IN TERTIARY-AMINES

被引：63

作者：

BENITEZGARCIA, J ^{[1
]}

RUIZIBANEZ, G ^{[1
]}

ALGHAWAS, HA ^{[1
]}

SANDALL, OC ^{[1
]}

机构：

[1] UNIV CALIF SANTA BARBARA,DEPT CHEM & NUCL ENGN,ROOM 3355,SANTA BARBARA,CA 93156

来源：

CHEMICAL ENGINEERING SCIENCE | 1991年 / 46卷 / 11期

关键词：

D O I：

10.1016/0009-2509(91)85161-P

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The effect of basicity, as measured by pK(a), on the reaction between CO2 and tertiary amines in aqueous solution has been investigated in this work. Four tertiary amines (triethanolamine, methyldiethanolamine, diethylethanolamine and triethylamine) with pK(a) varying between 7.8 and 10.8 were studied at 25-degrees-C. It was found that the second-order kinetic rate constant increases with increasing basicity. The data were well correlated by k2 = 1.60 x 10(-3) exp (0.983 pK(a)) 1/g mol s.

引用

页码：2927 / 2931

页数：5

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