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离子液体[Bmim][NTf_2]对CO_2在碳酸二乙酯中溶解性能的强化
Authors
张少峰
李红伟
+6 more
梁向峰
汤志刚
费维扬
赵志军
邢潇
郭栋
Publication date
1 January 2017
Publisher
Abstract
采用恒定容积法在温度范围308.15~328.15 K、压力范围0~3 MPa条件下测定了CO_2在碳酸二乙酯(DEC)、离子液体[Bmim][NTf_2]以及二者不同质量分数配比混合溶剂中的溶解度,并用COSMO-RS模型研究了离子液体的加入对DEC蒸气分压的影响。实验表明,在相同实验条件下CO_2在[Bmim][NTf_2]中的溶解度大于在DEC中的溶解度。[Bmim][NTf_2]的加入可强化CO_2在DEC中的溶解性能,在相同温度下CO_2在混合溶剂中的溶解度随[Bmim][NTf_2]质量分数增加而增大,在相同浓度的混合溶剂中CO_2的溶解度随温度升高而降低。COSMO-RS模型计算表明,DEC的蒸气分压下降的分数随混合溶剂中离子液体质量分数增加而增大,而对于相同质量分数配比的混合溶剂温度对DEC的蒸气分压影响较小。</p
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Institutional Repository of Institute of Process Engineering, CAS (IPE-IR)
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oai:ir.ipe.ac.cn:122111/37577
Last time updated on 05/12/2019
Institutional Repository of Institute of Process Engineering, CAS (IPE-IR)
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:ir.ipe.ac.cn:122111/25146
Last time updated on 08/09/2018