期刊
ENERGY & FUELS
卷 26, 期 1, 页码 147-153出版社
AMER CHEMICAL SOC
DOI: 10.1021/ef2011113
关键词
-
资金
- National Nature Science Foundation [51076139]
Solvent selection is the potential breakthrough for the chemical absorption method to capture CO2 from coal-fired flue gas. A total of 16 kinds of selected monoethanolamine (MEA)-based solvents were assessed by absorption at 40 degrees C up to 12kPa CO2 partial pressure and desorption at 100 degrees C down to 1.0 kPa CO2 partial pressure. Results showed that the 20% MEA + 10% diethylenetriamine (DETA) system maintains the highest average absorption rates and reaches the highest loading of 0.556 kg of CO2/kg of solute during all of the tested systems. The absorption capacity of the 20% MEA + 10% DETA system is increased to 53%, and the corresponding average removal efficiency is enhanced more than 31% compared to 30% MEA solution. Furthermore, there is only a slight difference between the regeneration performance of the 20% MEA + 10% DETA system and that of the 30% MEA solution.
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