KINETICS OF COS WITH PRIMARY AND SECONDARY-AMINES IN AQUEOUS-SOLUTIONS

被引：36

作者：

LITTEL, RJ ^{[1
]}

VERSTEEG, GF ^{[1
]}

VANSWAAIJ, WPM ^{[1
]}

机构：

[1] UNIV TWENTE,DEPT CHEM ENGN,7500 AE ENSCHEDE,NETHERLANDS

来源：

AICHE JOURNAL | 1992年 / 38卷 / 02期

关键词：

D O I：

10.1002/aic.690380210

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The reaction between COS and aqueous solutions of primary and secondary amines has been studied by means of the stirred cell technique. Kinetic experiments at temperatures 283 to 333 K were carried out with MEA, DGA, DEA, DIPA, MMEA, AMP, and MOR. All kinetic experiments could be described by a zwitterion reaction mechanism similar to the mechanism proposed by Caplow (1968) for the reaction between CO2 and secondary amines: COS + R2NH <--> R2NH+ COS- R2NH+ COS- + B <--> R2NCOS- + BH+ Analysis of concentrated amine solutions at high COS concentrations by various analytical techniques confirmed the conclusions from the kinetic experiments. For all amines except for MEA, the overall reaction rate was found to be determined entirely by the zwitterion deprotonation rate.

引用

页码：244 / 250

页数：7

共 20 条

[1]

BERLIE EM, 1965, CHEM ENG PROG, V61, P82

[2]

BLAUWHOFF PMM, 1984, CHEM ENG SCI, V39, P207, DOI 10.1016/0009-2509(84)80021-4

[3] KINETICS OF THE REACTION OF CO2 WITH THE STERICALLY HINDERED AMINE 2-AMINO-2-METHYLPROPANOL AT 298-K [J].

BOSCH, H ;

VERSTEEG, GF ;

VANSWAAIJ, WPM .

CHEMICAL ENGINEERING SCIENCE, 1990, 45 (05) :1167-1173

[4] KINETICS OF CARBAMATE FORMATION AND BREAKDOWN [J].

CAPLOW, M .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1968, 90 (24) :6795-&

[5] REACTION OF CO2 WITH ETHANOLAMINES [J].

DANCKWERTS, PV .

CHEMICAL ENGINEERING SCIENCE, 1979, 34 (04) :443-446

[6] MECHANISM OF CLEAVAGE OF CARBAMATE ANIONS [J].

EWING, SP ;

LOCKSHON, D ;

JENCKS, WP .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1980, 102 (09) :3072-3084

[7]

Kohl A.L., 1985, GAS PURIFICATION

[8]

LITTEL RJ, 1992, IN PRESS J CHEM ENG

[9]

LITTEL RJ, 1992, IN PRESS CHEM ENG SC

[10] UNCATALYZED AND GENERAL ACID-CATALYZED DECOMPOSITION OF ALKYL XANTHATES AND MONOTHIOCARBONATES IN AQUEOUS-SOLUTIONS [J].

MILLICAN, RJ ;

ANGELOPOULOS, M ;

BOSE, A ;

RIEGEL, B ;

ROBINSON, D ;

WAGNER, CK .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1983, 105 (11) :3622-3630

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