期刊
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
卷 49, 期 4, 页码 313-322出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cep.2010.03.008
关键词
Ionic liquids; Flue gas; Carbon dioxide capture; Regeneration; Solubility; Toxicity
资金
- FL Canada Research Chair
- Centre Quebecois sur les Materiaux Fonctionnels (CQMF)
- Natural Sciences and Engineering Research Council (NSERC)
Innovative off-the-shelf CO2 capture approaches are burgeoning in the literature, among which, ionic liquids seem to have been omitted in the recent Intergovernmental Panel on Climate Change (IPCC) survey Ionic liquids (ILs), because of their tunable properties, wide liquid range, reasonable thermal stability, and negligible vapor pressure, are emerging as promising candidates rivaling with conventional amine scrubbing. Due to substantial solubility, room-temperature ionic liquids (RTILs) are quite useful for CO2 separation from flue gases Their absorption capacity can be greatly enhanced by functionalization with an amine moiety but with concurrent increase in viscosity making process handling difficult However this downside can be overcome by making use of supported ionic-liquid membranes (SILMs), especially where high pressures and temperatures are involved. Moreover, due to negligible loss of ionic liquids during recycling, these technologies will also decrease the CO2 capture cost to a reasonable extent when employed on industrial scale There is also need to look deeply into the noxious behavior of these unique species. Nevertheless, the flexibility in synthetic structure of ionic liquids may make them opportunistic in CO2 capture scenarios (C) 2010 Elsevier B V All rights reserved
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