Removal of CO2 by calcium-based sorbents in the presence of SO2

被引：132
|
作者：
Sun, Ping [1 ]
Grace, John R. [1 ]
Lim, C. Jim [1 ]
Anthony, Edward J. [1 ]
机构：
[1] Univ British Columbia, Dept Chem & Biochem Engn, Vancouver, BC V6T 1Z3, Canada
来源：
ENERGY & FUELS | 2007年 / 21卷 / 01期
关键词：
D O I：
10.1021/ef060329r
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
In an investigation of in situ CO2 removal for fluidized-bed combustion processes, seven calcium-based sorbents were tested for simultaneous CO2 and SO2 removal using both an atmospheric thermogravimetric reactor and a pressurized thermogravimetric analyzer. SO2 was found to impede cyclic CO2 capture because of pore blockage by sulfate products, resulting primarily from direct sulfation during the later stage of each cycle. The sorbents showed similar patterns during cocapture. Loss in sorbent reversibility could not be prevented but was improved by higher CO2 partial pressures.
引用
收藏
页码：163 / 170
页数：8
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