Novel regenerable sodium-based sorbents for CO2 capture at warm gas temperatures

被引:89
作者
Siriwardane, Ranjani V. [1 ]
Robinson, Clark
Shen, Ming
Simonyi, Tom
机构
[1] Natl Energy Technol Ctr, US Dept Energy, Morgantown, WV 26505 USA
[2] Parsons Inc, Res Dev Solut, Morgantown, WV 26507 USA
关键词
D O I
10.1021/ef070008v
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
A novel sorbent consisting of NaOH/CaO was developed for CO2 capture at 315 degrees C suitable for high-temperature CO2-capture applications, such as coal gasification systems. The sorbent is regenerable at 700 degrees C, and steam does not affect the sorbent performance. A multicycle test conducted in the atmospheric reactor at 315 degrees C indicated that the sorbent improved the performance with an increased number of cycles. The sorbent can also capture CO2 at a wide range of temperatures from ambient to 500 degrees C. However, the mechanism of CO2 capture is different at ambient temperature. The sorbent is unique because it has a high CO2-capture capacity of more than 3 mol/kg at 315 degrees C and is regenerable at 700 degrees C.
引用
收藏
页码:2088 / 2097
页数:10
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