PREPARATION OF CARBON MOLECULAR-SIEVES BY PROPYLENE PYROLYSIS OVER MICROPOROUS CARBONS

被引：56

作者：

VERMA, SK ^{[1
]}

WALKER, PL ^{[1
]}

机构：

[1] PENN STATE UNIV,DEPT MAT SCI & ENGN,UNIV PK,PA 16802

来源：

CARBON | 1992年 / 30卷 / 06期

关键词：

CARBON MOLECULAR SIEVES; ACTIVATED CARBON; PROPYLENE; PYROLYSIS; CARBON; ADSORPTION; DIFFUSION; O2; AR;

D O I：

10.1016/0008-6223(92)90003-F

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：

Modification of the pore structure of microporous carbons by depositing carbons from pyrolysis of C3H6 between 973-1123 K was investigated in regard to development of molecular sieving properties for separation of O2 and Ar. Excellent adsorption kinetics and selectivity for separation of O2 and Ar were achieved by depositing carbon on a substrate carbon that contains pores of a narrow size distribution. Activated carbons showed no useful development of molecular sieving characteristics after carbon deposition. This is attributed, primarily, to their containing too wide a size distribution of micropores.

引用

页码：829 / 836

页数：8

共 13 条

[1] CONTROL OF MICROPORE DIFFUSIVITIES OF MOLECULAR-SIEVING CARBON BY DEPOSITION OF HYDROCARBONS [J].