A review of CO2 capture by absorption in ionic liquid-based solvents

被引:121
作者
Babamohammadi, Shervan [1 ]
Shamiri, Ahmad [1 ,2 ]
Aroua, Mohamed Kheireddine [1 ]
机构
[1] Univ Malaya, Dept Chem Engn, Fac Engn, Kuala Lumpur 50603, Malaysia
[2] UCSI Univ, Chem & Petr Engn Dept, Fac Engn Technol & Built Environm, Kuala Lumpur 56000, Malaysia
关键词
carbon dioxide absorption; ionic liquids; mass transfer; physiochemical properties; CARBON-DIOXIDE ABSORPTION; PRESSURE PHASE-BEHAVIOR; ROTATING PACKED-BEDS; NONRANDOM LATTICE THEORY; MASS-TRANSFER; AQUEOUS-SOLUTIONS; PHYSICOCHEMICAL PROPERTIES; REACTION-KINETICS; 1-HEXYL-3-METHYLIMIDAZOLIUM HEXAFLUOROPHOSPHATE; THERMODYNAMIC PROPERTIES;
D O I
10.1515/revce-2014-0032
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Concern has increased about climate change caused by carbon dioxide (CO2) emissions through human activities in recent years. The Intergovernmental Panel on Climate Change predicts a 1.9 degrees C rise in temperature by the year 2100, and this means a reduction in CO2 is vital for human beings and all other life on earth. Therefore, there is an urgent need for the development of CO2 separation processes to mitigate this potential problem. Post-combustion power plants can employ various types of separation technology. Among them, chemical absorption using aqueous amine is more developed and more reliable. The conventional solvents used in the chemical absorption process together with the use of absorbents, ionic liquid, alkanolamines and their blended aqueous solutions are reviewed in this work. Different ionic liquid-based solvents for CO2 absorption and the most effective parameters on mass transfer phenomena between CO2 and solvent are reviewed. The major concerns for this technology, including the physiochemical properties of ionic liquid-based solvents, Henry's constant and mass transfer coefficient and their correlations, and various factors for effective CO2 absorption, are addressed.
引用
收藏
页码:383 / 412
页数:30
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