An estimate of surface mobility of CO2, on γ-alumina and MgO-modified γ-alumina above 500 K

被引：2

作者：

Horiuchi, T ^{[1
]}

Osaki, T ^{[1
]}

Sugiyama, T ^{[1
]}

Suzuki, K ^{[1
]}

Mori, T ^{[1
]}

机构：

[1] Natl Ind Res Inst Nagoya, Kita Ku, Nagoya, Aichi 4628510, Japan

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 1998年 / 204卷 / 01期

关键词：

surface diffusion; CO2; high temperature; heat of adsorption;

D O I：

10.1006/jcis.1998.5576

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In order to know the possibility of CO2 separation by surface diffusion with ceramic membrane at high temperature, permeability of CO2 was estimated from the heat of adsorption of CO2 on gamma-alumina and MgO-modified gamma-alumina. It is revealed that the too high heat of adsorption retards the mobility of CO2. Ordinary gamma-alumina was preferable for the CO2 separation. Estimated permeability of CO2 by surface diffusion was larger than that by molecular sieve mechanism. (C) 1998 Academic Press

引用

页码：217 / 218

页数：2

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