Novel Index to Screen and Evaluate Ionic Liquids for CO<sub>2</sub>/CH<sub>4</sub> Separation

Efficient CO2/CH4 separation for biogas upgrading can be achieved by using ionic liquids (ILs) as absorbents. In this study, a novel index named “relative absorption ability” (RAA) was proposed for the first time to facilitate the screening and evaluation of potential absorbents based on their thermodynamic and kinetic properties for CO2/CH4 separation. Subsequently, the properties of 2009 ILs were predicted with the conductor-like screening model, and the top 10 ILs were screened. Finally, the cost of the screened top two ILs for CO2/CH4 separation was further estimated with process simulation. The results further prove the reliability of the new proposed RAA index in screening and evaluating, and the screened promising ILs can reduce the costs of CO2/CH4 separation by 53.9% and 51.9%, respectively, in comparison to the current commercial technology.

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Publication Details

Journal
Industrial & Engineering Chemistry Research
Published
2024-08-12
DOI
https://doi.org/10.1021/acs.iecr.4c01658
Citations
6
Primary Topic
Ionic liquids properties and applications
Type
article
Field-Weighted Citation Impact
0.64

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article

Novel Index to Screen and Evaluate Ionic Liquids for CO2/CH4 Separation

Gangqiang Yu, Kang Sun, Xiaohua Lü, Shule Wang et al.
6 citations
Industrial & Engineering Chemistry Research
Ionic liquids properties and applications
0.64
article

Novel Index to Screen and Evaluate Ionic Liquids for CO2/CH4 Separation

Gangqiang Yu, Kang Sun, Xiaohua Lü, Shule Wang, Jianchun Jiang, Xiaoyan Ji, Yi-Feng Chen, Lei Wang
article en
6 citations

Abstract

Efficient CO2/CH4 separation for biogas upgrading can be achieved by using ionic liquids (ILs) as absorbents. In this study, a novel index named “relative absorption ability” (RAA) was proposed for the first time to facilitate the screening and evaluation of potential absorbents based on their thermodynamic and kinetic properties for CO2/CH4 separation. Subsequently, the properties of 2009 ILs were predicted with the conductor-like screening model, and the top 10 ILs were screened. Finally, the cost of the screened top two ILs for CO2/CH4 separation was further estimated with process simulation. The results further prove the reliability of the new proposed RAA index in screening and evaluating, and the screened promising ILs can reduce the costs of CO2/CH4 separation by 53.9% and 51.9%, respectively, in comparison to the current commercial technology.

Industrial & Engineering Chemistry ResearchVol. 63(33)
Nanjing Tech University (CN), Nanjing Forestry University (CN), Luleå University of Technology (SE), Beijing University of Technology (CN), Institute of Chemical Industry of Forest Products (CN)
Kempe Foundation, Swedish Foundation for International Cooperation in Research and Higher Education, National Natural Science Foundation of China, Energimyndigheten
Openalex Percentile: Top 39%
Ionic liquids properties and applications
0.64
DOIOpen Access PDFOpenAlex
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Novel Index to Screen and Evaluate Ionic Liquids for CO<sub>2</sub>/CH<sub>4</sub> Separation — Gangqiang Yu, Kang Sun, et al. · Industrial & Engineering Chemistry Research (2024) | TGRS Research Map | TGRS