Absorption of CO with reaction in a biphasic medium (aqueous NaOH-n-hexane): rate enhancement due to dispersed organic phase and phase-transfer catalysis

被引：7

作者：

Chaudhari, RV ^{[1
]}

Jayasree, P ^{[1
]}

Gupte, SP ^{[1
]}

Delmas, H ^{[1
]}

机构：

[1] ENSIGC,URA 192,LAB GENIE CHIM,F-31078 TOULOUSE,FRANCE

来源：

CHEMICAL ENGINEERING SCIENCE | 1997年 / 52卷 / 21-22期

关键词：

absorption; biphasic; dispersion; mass transfer; emulsifier;

D O I：

10.1016/S0009-2509(97)88934-8

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The absorption of CO in aqueous NaOH-n-hexane dispersions has been investigated in an agitated reactor over a temperature range of 353-433 K. The rate of absorption was found to be significantly enhanced in the presence of organic droplets and an emulsifier. Also, the addition of a phase-transfer catalyst and a Co complex catalyst resulted in further enhancement of CO absorption rates. The effect of agitation speed, NaOH concentration and CO pressure was studied at 353-433 K for different organic-phase hold-ups and the experimental data were found to be in good agreement with a theoretical model incorporating the variation of the gas-liquid interfacial area with hold-up. (C) 1997 Elsevier Science Ltd.

引用

页码：4197 / 4203

页数：7