PHOTOCATALYTIC PRODUCTION OF HYDROGEN FROM SULFIDE AND SULFITE WASTE STREAMS - A KINETIC-MODEL FOR REACTIONS OCCURRING IN ILLUMINATED SUSPENSIONS OF CDS

被引：42

作者：

SABATE, J ^{[1
]}

CERVERAMARCH, S ^{[1
]}

SIMARRO, R ^{[1
]}

GIMENEZ, J ^{[1
]}

机构：

[1] UNIV BARCELONA,DEPT INGN QUIM,MARTI & FRANQUES 1 6,E-08028 BARCELONA,SPAIN

来源：

CHEMICAL ENGINEERING SCIENCE | 1990年 / 45卷 / 10期

关键词：

D O I：

10.1016/0009-2509(90)80055-J

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Use of a xenon light source to irradiate alkaline aqueous solutions of H2S and SO2 in which CdS is suspended leads to the production of H2 and thiosulfate. The variations of the reaction rate in response to changes in the concentration of catalyst, sulfide, sulfite and thiosulfate and in pH and temperature were investigated. The kinetic data were analyzed in terms of a Langmuir-Hinshelwood-Hougen-Watson model, in which the rate-controlling step is a surface reaction related to an anodic type reaction. The observed overall activation energy of the reaction (2.52 kcal/mol) is typical of photochemical processes. © 1990.

引用

页码：3089 / 3096

页数：8

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