CATALYST DEACTIVATION IN THE HYDROLYSIS OF ACRYLONITRILE TO ACRYLAMIDE OVER RANEY COPPER

被引：11

作者：

Onuoha, N. I. ^{[1
]}

Wainwright, M. S. ^{[1
]}

机构：

[1] Univ New S Wales, Sch Chem Engn & Ind Chem, Kensington, NSW 2033, Australia

来源：

CHEMICAL ENGINEERING COMMUNICATIONS | 1984年 / 29卷 / 1-6期

关键词：

Catalyst deactivation; Acrylonitrile; Acrylamide;

D O I：

10.1080/00986448408940146

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Two possible processes for deactivation in the catalytic hydrolysis of acrylonitrile over Raney copper have been examined at temperatures in the range 40 to 100 degrees C. The first of these is the diffusion limited oxidation of the catalyst surface which produces oxides of copper. The other, more dominant, effect is thought to result from fouling of the catalyst pores by thermally polymerized acrylamide. This mechanism of catalyst poisoning which is independent of both reactant and product concentrations is evidenced by changes in specific surface areas and pore sizes of the catalyst used.

引用

页码：13 / 25

页数：13

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