Alkyl-fluoroalkylimidazolium-Based Ionic Liquids as Efficient CO2 Absorbents
- Alkyl-fluoroalkylimidazolium-Based Ionic Liquids as Efficient CO2 Absorbents
- 이현주; 조민호; 이방숙; Jelliarko Palgunadi; 김홍곤; 김훈식
- Issue Date
- Energy & fuels : an American Chemical Society journal
- VOL 24, NO 12, 6689-6692
- CO2 capture fromthe exhaust flue gases of fossil-fuel power
plants has become one of the hot issues for a sustainable
society because of the strong impact of CO2 on global warming.
Industrially, CO2 is being removed from flue gases by a
variety of methods, including the chemical absorption by
aqueous solutions of alkanol amines and the adsorption with
K2CO3. Of these, alkanol-amine-based aqueous solutions are
more preferred because of their rapid reactions with CO2,
forming ammonium carbamate. However, the absorption
process using alkanol amines has several drawbacks, such as
the decomposition of amines by small amounts of S-containing
compounds present in flue gases, loss of absorbents during
regeneration because of their high volatilities, and the requirement
of enormous energy to beak the strong C-N bonds of
carbamates in the regeneration of alkanol amines.
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