Selection of new absorbents for carbon dioxide capture

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• 作者：Sholeh Ma’ ; mun ; Hallvard F. Svendsen ; Karl A. Hoff and Olav Juliussen
• 刊名：Energy Conversion and Management
• 出版年：2007
• 期刊代码：13_01968904
• 类别：pw
• 出版时间：January 2007
• 卷：48
• 期：1
• 页码：251-258
• 文件大小：199 K

摘要

This work focuses on selecting new absorbents for CO₂ capture. Absorption of CO₂ was studied at 40 °C using both single and mixed amine-based absorbents. The experimental results show that most absorbents tested have a poorer performance than MEA, but that aqueous AEEA might be a possible contender. In addition to the absorption measurements, the VLE of CO₂ in the selected absorbent, the aqueous 2.9 M AEEA, were studied at 40 and 120 °C. The equilibrium partial pressures of CO₂ in the aqueous 2.9 M AEEA at the temperature of removal (40 °C) and that of regeneration (120 °C) are lower than for aqueous 5.0 M MEA, but the maximum net cyclic capacity is somewhat higher.