KINETIC MODELING OF THE HYDROLYSIS OF CARBON-DISULFIDE CATALYZED BY EITHER TITANIA OR ALUMINA

被引：18

作者：

TONG, S ^{[1
]}

LANA, IGD ^{[1
]}

CHUANG, KT ^{[1
]}

机构：

[1] UNIV ALBERTA,DEPT CHEM ENGN,EDMONTON,AB T6G 2G6,CANADA

来源：

CANADIAN JOURNAL OF CHEMICAL ENGINEERING | 1995年 / 73卷 / 02期

关键词：

HYDROLYSIS OF CS2; ALUMINA AND TITANIA CATALYSTS; KINETICS; KINETIC MODELS;

D O I：

10.1002/cjce.5450730208

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The reaction rates for the hydrolysis of CS2 on either alumina (Kaiser 201) or titania (CRS 31) were measured at 150 kPa and from 270 to 330 degrees C using a laboratory Berty reactor over ranges of water concentration (2-12 mol%) and CS2 concentration (0.5-2 mol%). Four mechanism-related model functions were tested in the search for the best-fitting rate function by using non-linear regression techniques. The results show that the Eley-Rideal rate function best-fitted the kinetics using either Kaiser 201 or CRS 31 with different parameters. The kinetic parameters obtained confirm that CRS 31 appears to have the higher activity of the two catalysts for CS2 hydrolysis. The strong adsorption of water vapor on each of the two catalysts studied inhibits the hydrolysis rate and affords an effective reaction order close to zero for H2O, possibly by saturating the catalysis surface and reducing the fraction of catalyst surface available for CS2 and COS adsorption.

引用

页码：220 / 227

页数：8

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