期刊
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
卷 4, 期 4, 页码 655-658出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ijggc.2009.12.010
关键词
CO2 capture; Potassium-based sorbent; Carbonation reaction
类别
资金
- National High-Technology Research and Development Program of China [2009AA05Z311]
- National Natural Science Foundation [50876021]
- Foundation of Graduate Creative Program of Jiangsu Province [CX0813_141Z]
- Scientific Research Foundation of Graduate School of Southeast University [YBJJ0825]
The effect of reaction conditions on the carbonation characteristics of K2CO3 calcined from KHCO3 was investigated with a pressurized thermogravimetric apparatus. Results show that the conversion rate decreased as the reaction temperature and pressure increased, and the effect of CO2 and H2O concentration is little. The mean reaction rate maintained constant of 3%/min. The maximum reaction rate increased as the temperature and H2O concentration increased, and the pressure decreased. The reaction temperature and pressure are the key factors, and it is important to control those carefully for this technique. The optimum reaction condition is 60 degrees C, 18% CO2, 18% H2O, and 1 atm. K2CO3 calcined from KHCO3 showed excellent CO2 capture capability in this condition. (C) 2010 Elsevier Ltd. All rights reserved.
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