Screening of cyclic amines and ionic liquids and their mixtures for carbon capture: solubility, kinetics, calorimetry and computational modeling studies

筛选用于碳捕获的环胺和离子液体及其混合物：溶解度、动力学、量热法和计算模型研究

• 批准号: 249754-2011
• 负责人: Henni, Amr
• 金额: $ 1.82万
• 依托单位: University of Regina
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=570716
• 关键词: Screening; cyclic; amines; ionic; liquids

Capturing carbon dioxide (CO2) has been identified as one of the key measures for the mitigation of greenhouse gases emissions in Canada. This is especially important in Western Canada where the impacts of Kyoto protocol could otherwise be severe. The economical removal of carbon dioxide is also vital to the sustainable development of Canada's coal and oil sand reserves. There is a worldwide interest in finding new sources of carbon dioxide for enhanced oil recovery. Using present day technology, even when CO2 can be sold as a by-product (enhanced oil recovery), the capture of carbon dioxide is economically attractive only when the oil price is high. The proposed research study has as main objective to screen new promising cyclic polyamines, ionic liquids and amino acids. These solvents will be tested in terms of their capacity for CO2 absorption, rate of absorption and heat of regeneration. The selected solvents should be better than those presently used in the gas, petrochemical and power generation industries. In parallel, a comprehensive computational study will help the screening process for the new amines and ionic liquids. It will also confirm the most favorable mechanisms in the amine-CO2 reactions, and will allow for a better understanding of the nature of the absorption of CO2 in ionic liquids. New measurements of the heat of regeneration of amines in the newly designed flow calorimeter will shed some lights on the nature of the absorption of the CO2 in ionic liquids. The longer term objective of this research proposal is, based on the tends obtained in experimental work, study new "virtual" amines and ionic liquids capable of absorbing more CO2, faster and with a lower heat of regeneration that what is presently available in industry.

捕获二氧化碳(CO2)已被确定为加拿大减少温室气体排放的关键措施之一。这在加拿大西部尤其重要，否则《京都议定书》的影响可能会很严重。二氧化碳的经济去除对加拿大煤炭和油砂储量的可持续发展也至关重要。寻找新的二氧化碳来源以提高石油采收率是全世界的兴趣所在。使用当今的技术，即使二氧化碳可以作为副产品出售(提高石油采收率)，只有在油价高的情况下，捕获二氧化碳才具有经济吸引力。 本研究的主要目的是筛选新的有前景的环多胺、离子液体和氨基酸。这些溶剂将根据其吸收二氧化碳的能力、吸收速度和再生热进行测试。所选择的溶剂应该比目前用于天然气、石化和发电行业的溶剂更好。 同时，一项全面的计算研究将有助于新的胺和离子液体的筛选过程。它还将确认胺-二氧化碳反应中最有利的机理，并将允许更好地了解离子液体中二氧化碳吸收的性质。在新设计的流动热量计中对胺的再生热进行了新的测量，这将揭示离子液体吸收二氧化碳的本质。 这项研究建议的长期目标是，根据实验工作中获得的趋势，研究新的“虚拟”胺和离子液体，它们能够吸收更多的二氧化碳，速度更快，再生热比目前工业上可用的更低。