Reversible Ionic Liquids as Double-Action Solvents for Efficient CO{sub 2} Capture

doi:10.2172/1048880

GSTDTAP > 地球科学

DOI	10.2172/1048880
报告编号	None
来源ID	OSTI ID: 1048880
	Reversible Ionic Liquids as Double-Action Solvents for Efficient CO{sub 2} Capture
	Eckert, Charles; Liotta, Charles
	2011-09-30
出版年	2011
语种	英语
国家	美国
领域	地球科学
英文摘要	We have developed a novel class of CO{sub 2} capture solvents, Reversible Ionic Liquids (RevILs), that offer high absorption capacity through two modes of capture: chemical reaction (chemisorption) and physical solubility (physisorption). These solvents are silicon containing alkaline compounds such as silylamines that form a liquid salt (ionic liquid) upon reaction with CO{sub 2}. Subsequently, modest elevations in temperature reverse the reaction and yield pure CO{sub 2} for sequestration. By incorporating Si in the molecules we have reduced the viscosity, thereby improving the mass transfer rates of CO{sub 2} absorption/desorption and decreasing the processing costs for pumping the solvent. In this project, we have made systematic changes to the structure of these compounds to improve several physical and thermodynamic properties important for CO{sub 2} capture. Through these structure-property paradigms, we have obtained a RevIL which requires only a third of the energy required by conventional aqueous MEA process for 90% CO{sub 2} capture.
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来源平台	US Department of Energy (DOE)
引用统计
文献类型	科技报告
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/5444
专题	地球科学
推荐引用方式 GB/T 7714	Eckert, Charles,Liotta, Charles. Reversible Ionic Liquids as Double-Action Solvents for Efficient CO{sub 2} Capture,2011.