KINETICS OF THE REACTION BETWEEN CARBON-DIOXIDE AND TRIETHYLAMINE IN AQUEOUS-SOLUTIONS

被引：15

作者：

BENITEZGARCIA, J ^{[1
]}

RUIZIBANEZ, G ^{[1
]}

BIDARIAN, A ^{[1
]}

SANDALL, OC ^{[1
]}

机构：

[1] UNIV CALIF SANTA BARBARA,DEPT CHEM & NUCL ENGN,SANTA BARBARA,CA 93106

来源：

CHEMICAL ENGINEERING SCIENCE | 1990年 / 45卷 / 12期

关键词：

D O I：

10.1016/0009-2509(90)87146-J

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The kinetics of the reaction between carbon dioxide and triethylamine (TREA) in aqueous solutions was determined from gas adsorption experiments in a wetted sphere absorber. There is disagreement in the literature on the presence of a base catalysis effect, commonly observed for the reaction of tertiary amines, for this highly basic tertiary amine. The solubility and diffusivity of carbon dioxide in aqueous TREA solutions which are needed to interpret the kinetics experiments were determined using the nitrous oxide analogy method. The data obtained in this work support a base catalysis mechanism characterized by second order overall kinetics, first order with respect to both CO2 and free amine concentrations. The rate constant for this reaction, obtained over a temperature range of 293-313 K, is correlated by k2 = 2.661 × 1011 exp(-6573/T). © 1990.

引用

页码：3407 / 3415

页数：9

共 24 条

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