Preparation of carbon molecular sieve membranes by KOH activation for gas separation

被引：0

作者：

Zhang Xiao-yong ^{[1
,2
]}

Liu Rui ^{[2
]}

Hu Hao-quan ^{[1
]}

Zheng Ming-dong ^{[2
]}

机构：

[1] Dalian Univ Technol, Inst Coal Chem Engn, State Key Lab Fine Chem, Dalian 116012, Peoples R China

[2] Anhui Univ Technol, Anhui Key Lab Coal Clean Convers & Utilizat, Sch Chem & Chem Engn, Ma Anshang 243002, Peoples R China

来源：

NEW CARBON MATERIALS | 2012年 / 27卷 / 01期

关键词：

Phenol formaldehyde novolac resin; Carbon molecular sieve membrane; Activation; Gas sparation; KOH;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Carbon molecular sieve membranes were prepared by the pyrolysis of a mixture containing phenolic novolac resin and KOH. The effects of KOH on the properties of the membranes were investigated. Results showed that membranes with homogeneous pore size distributions and high gas permeation rates can be obtained by controlling the amount of KOH. Their H-2 gas permeability increased from 23.68x10(-10) to 28.6x10(-10) mol.m(-2).s(-1).Pa-1 and H-2/N-2 and H-2/CH4 selectivity decreased from 471.3 to 147.5 and 540 to 270 respectively, while the CO2/CH4 and O-2/N-2 selectivity changed little with increasing KOH content in the coating solution from 0 to 4 mass%.

引用

页码：61 / 66

页数：6

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