ACTIVATION OF ANTHRACITE - USING CARBON-DIOXIDE VERSUS AIR

被引：28

作者：

BESSANT, GAR

WALKER, PL

机构：

[1] Department of Materials Science and Engineering, The Pennsylvania State University, University Park

来源：

CARBON | 1994年 / 32卷 / 06期

关键词：

ANTHRACITE; ACTIVATION; CARBON DIOXIDE; AIR GASIFICATION;

D O I：

10.1016/0008-6223(94)90226-7

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：

Devolatilized (950-degrees-C) anthracite was activated in 0.1 MPa CO2 at 950-degrees-C and 0.1 MPa air at 425-degrees-C and 450-degrees-C. At comparable gasification rates and carbon burn-offs in CO2 and air, larger surface areas and pore volumes were developed by activation in CO2. This is attributed foremost to less uniform activation through the anthracite particles when gasification takes place in air. Also, the formation of a stable oxygen complex, concurrent with carbon gasification in air, may reduce the efficiency of anthracite activation.

引用

页码：1171 / 1176

页数：6

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