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Ryoo D, Bara JE, Anderson JL. Polymeric ionic liquids containing copper(I) and copper(II) ions as gas chromatographic stationary phases for olefin separations. J Chromatogr A 2024; 1735:465306. [PMID: 39241406 DOI: 10.1016/j.chroma.2024.465306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2024] [Revised: 08/22/2024] [Accepted: 08/23/2024] [Indexed: 09/09/2024]
Abstract
Copper(I) ions (Cu+) are used in olefin separations due to their olefin complexing ability and low cost, but their instability in the presence of water and gases limits their widespread use. Ionic liquids (ILs) have emerged as stabilizers of Cu+ ions and prevent their degradation, providing high olefin separation efficiency. There is limited understanding into the role that polymeric ionic liquids (PILs), which possess similar structural characteristics to ILs, have on Cu+ ion-olefin interactions. Moreover, copper ions with diverse oxidation states, including Cu+ and Cu2+ ions, have been rarely employed for olefin separations. In this study, gas chromatography (GC) is used to investigate the interaction strength of olefins to stationary phases composed of the 1-hexyl-3-methylimidazolium bis[(trifluoromethyl)sulfonyl]imide ([C6MIM+][NTf2-]) IL and the poly(1-hexyl-3-vinylimidazolium [NTf2-]) (poly([C6VIM+][NTf2-])) PIL containing monovalent and divalent copper salts (i.e., [Cu+][NTf2-] and [Cu2+]2[NTf2-]). The chromatographic retention of alkenes, alkynes, dienes, and aromatic compounds was examined. Incorporation of the [Cu2+]2[NTf2-] salt into a stationary phase comprised of poly(dimethylsiloxane) resulted in strong retention of olefins, while its addition to the [C6MIM+][NTf2-] IL and poly([C6VIM+][NTf2-]) PIL allowed for the interaction strength to be modulated. Olefins exhibited greater affinities toward IL and PIL stationary phases containing the [Cu2+]2[NTf2-] salt compared to those with the [Cu+][NTf2-] salt. Elimination of water from both copper salts was observed to be an important factor in promoting olefin interactions, as evidenced by increased olefin retention upon exposure of the stationary phases to high temperatures. To evaluate the long-term thermal stability of the stationary phase, chromatographic retention of probes was measured on the [Cu2+]2[NTf2-]/[C6MIM+][NTf2-] IL stationary phase after its exposure to helium at a temperature of 110 °C.
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Affiliation(s)
- Donghyun Ryoo
- Department of Chemistry, Iowa State University, Ames, IA, 50011, USA; Ames National Laboratory-U.S. Department of Energy, Ames, IA, 50011, USA
| | - Jason E Bara
- Department of Chemical and Biological Engineering, University of Alabama, Tuscaloosa, AL, 35487, USA
| | - Jared L Anderson
- Department of Chemistry, Iowa State University, Ames, IA, 50011, USA; Ames National Laboratory-U.S. Department of Energy, Ames, IA, 50011, USA.
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Eor P, Tryon-Tasson N, Anderson JL. Elucidating the role of temperature and water on the π-complexation strength of copper(I) ion-containing ionic liquids using inverse gas chromatography. Anal Chim Acta 2024; 1287:342021. [PMID: 38182360 DOI: 10.1016/j.aca.2023.342021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 11/07/2023] [Accepted: 11/08/2023] [Indexed: 01/07/2024]
Abstract
BACKGROUND The π-complexation capability of copper(I) ion has been exploited in olefin/paraffin separations, but its propensity of undergoing disproportionation to copper(II) ion and copper metal has limited its use. Imidazolium-based ionic liquids (ILs) can serve as solvents for copper(I) ions as they facilitate copper(I) ion-olefin complexation and can enhance its stability. To precisely monitor how copper(I) ions complex with olefins in ILs and evaluate the effects of environmental factors, it is necessary to construct an experimental platform capable of quantitatively measuring their molecular-level interactions. RESULTS This study employs an innovative inverse chromatography platform to measure changes in molecular-level interactions between copper(I) ions and olefins when the temperature and water content in the system are carefully controlled. Gas chromatographic stationary phases comprised of the 1-decyl-3-methylimidazolium bis[(trifluoromethyl)sulfonyl]imide ([C10MIM+][NTf2-]) IL containing 0.5 M [Cu+][NTf2-] were pre-heated to 140 °C maximizing copper(I) ion's π-complexation capability. The chromatographic retention of alkenes, dienes, and alkynes on the copper(I) ion/IL stationary phase was observed to be predominantly influenced by their partitioning between the carrier gas and copper(I) ion as well as between the IL and copper(I) ion. Upon introducing water to the system, the Gibbs free energy of solvation for olefins showed less favorable solvation into the stationary phase. In contrast, their solvation was significantly enhanced when the [Cu+][NTf2-]/[C10MIM+][NTf2-] stationary phase was heated to an elevated temperature, indicating that the π-complexation capability of copper(I) ion can be regenerated as needed. SIGNIFICANCE This study demonstrates that the stability of copper(I) ions can be improved by dissolving them into appropriate IL solvents. Moreover, the olefin separation performance of the copper(I) ion/IL stationary phase was found to be adjustable by the application of different column treatment conditions (i.e., heating and water introduction), opening the possibility of devising more stable, reliable, and efficient olefin separation systems based on copper(I) ion and IL solvents.
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Affiliation(s)
- Philip Eor
- Ames National Laboratory-USDOE and Department of Chemistry, Iowa State University, Ames, IA, 50011, USA
| | - Nicholas Tryon-Tasson
- Ames National Laboratory-USDOE and Department of Chemistry, Iowa State University, Ames, IA, 50011, USA
| | - Jared L Anderson
- Ames National Laboratory-USDOE and Department of Chemistry, Iowa State University, Ames, IA, 50011, USA.
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Alhumaydhi IA, Abro R, Mazari SA, Abro M, Nizamuddin S, Memon AQ, Yu G. Separation of propylene and propane by functional mixture of imidazolium thiocyanate ionic liquid‐organic solvent‐cuprous salt. CAN J CHEM ENG 2021. [DOI: 10.1002/cjce.23970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ibrahim A. Alhumaydhi
- Beijing Key Laboratory of Membrane Science and Technology & College of Chemical Engineering Beijing University of Chemical Technology Beijing China
- National Petrochemical Technology Center (NPTC), Materials Science Research Institute (MSRI), King Abdulaziz City for Science and Technology (KACST) Riyadh Saudi Arabia
| | - Rashid Abro
- Department of Chemical Engineering Dawood University of Engineering and Technology Karachi Sindh Pakistan
| | - Shaukat Ali Mazari
- Department of Chemical Engineering Dawood University of Engineering and Technology Karachi Sindh Pakistan
| | - Masroor Abro
- Beijing Key Laboratory of Membrane Science and Technology & College of Chemical Engineering Beijing University of Chemical Technology Beijing China
| | | | - Abdul Q. Memon
- Department of Chemical Engineering Dawood University of Engineering and Technology Karachi Sindh Pakistan
| | - Guangren Yu
- Beijing Key Laboratory of Membrane Science and Technology & College of Chemical Engineering Beijing University of Chemical Technology Beijing China
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Gao S, Jin J, Abro M, He M, Chen X. Selection of ionic liquid for extraction processes: Special case study of extractive desulfurization. Chem Eng Res Des 2021. [DOI: 10.1016/j.cherd.2020.12.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Fang J, Wu J, Li C, Li H, Yang Q. Molecular design and comprehensive evaluation of solvents capable of simultaneously extracting multiple active substances. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.116882] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Wang Y, Peh SB, Zhao D. Alternatives to Cryogenic Distillation: Advanced Porous Materials in Adsorptive Light Olefin/Paraffin Separations. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1900058. [PMID: 30993886 DOI: 10.1002/smll.201900058] [Citation(s) in RCA: 110] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 03/02/2019] [Indexed: 06/09/2023]
Abstract
As primary feedstocks in the petrochemical industry, light olefins such as ethylene and propylene are mainly obtained from steam cracking of naphtha and short chain alkanes (ethane and propane). Due to their similar physical properties, the separations of olefins and paraffins-pivotal processes to meet the olefin purity requirement of downstream processing-are typically performed by highly energy-intensive cryogenic distillation at low temperatures and high pressures. To reduce the energy input and save costs, adsorptive olefin/paraffin separations have been proposed as promising techniques to complement or even replace cryogenic distillation, and growing efforts have been devoted to developing advanced adsorbents to fulfill this challenging task. In this Review, a holistic view of olefin/paraffin separations is first provided by summarizing how different processes have been established to leverage the differences between olefins and paraffins for effective separations. Subsequently, recent advances in the development of porous materials for adsorptive olefin/paraffin separations are highlighted with an emphasis on different separation mechanisms. Last, a perspective on possible directions to push the limit of the research in this field is presented.
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Affiliation(s)
- Yuxiang Wang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Shing Bo Peh
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Dan Zhao
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
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Lu X, Zhu J, Qian X, Ji J. Separation of methyl linolenate and its analogues by functional mixture of imidazolium based ionic liquid-organic solvent-cuprous salt. Chin J Chem Eng 2019. [DOI: 10.1016/j.cjche.2018.05.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Dou H, Jiang B, Xu M, Zhou J, Sun Y, Zhang L. Supported ionic liquid membranes with high carrier efficiency via strong hydrogen-bond basicity for the sustainable and effective olefin/paraffin separation. Chem Eng Sci 2019. [DOI: 10.1016/j.ces.2018.08.060] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Jiang B, Tao W, Dou H, Sun Y, Xiao X, Zhang L, Yang N. A Novel Supported Liquid Membrane Based on Binary Metal Chloride Deep Eutectic Solvents for Ethylene/Ethane Separation. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b03843] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Bin Jiang
- School
of Chemical Engineering and Technology, Tianjin University, Tianjin, China
| | - Wenjun Tao
- School
of Chemical Engineering and Technology, Tianjin University, Tianjin, China
| | - Haozhen Dou
- School
of Chemical Engineering and Technology, Tianjin University, Tianjin, China
| | - Yongli Sun
- School
of Chemical Engineering and Technology, Tianjin University, Tianjin, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Xiaoming Xiao
- School
of Chemical Engineering and Technology, Tianjin University, Tianjin, China
| | - Luhong Zhang
- School
of Chemical Engineering and Technology, Tianjin University, Tianjin, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Na Yang
- School
of Chemical Engineering and Technology, Tianjin University, Tianjin, China
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Polysulfone porous hollow fiber membranes for ethylene-ethane separation in gas-liquid membrane contactor. Sep Purif Technol 2017. [DOI: 10.1016/j.seppur.2017.03.023] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Shen X, Abro R, Alhumaydhi IA, Abdeltawab AA, Al-Enizi AM, Chen X, Yu G. Separation of propylene and propane by functional mixture of imidazolintum chloride ionic liquid – Organic solvent – Cuprous salt. Sep Purif Technol 2017. [DOI: 10.1016/j.seppur.2016.11.023] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Sun Y, Bi H, Dou H, Yang H, Huang Z, Wang B, Deng R, Zhang L. A Novel Copper(I)-Based Supported Ionic Liquid Membrane with High Permeability for Ethylene/Ethane Separation. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.6b03364] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yongli Sun
- School
of Chemical Engineering and Technology, Tianjin University, Tianjin, China
- Collaborative
Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Hanrong Bi
- School
of Chemical Engineering and Technology, Tianjin University, Tianjin, China
- Collaborative
Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Haozhen Dou
- School
of Chemical Engineering and Technology, Tianjin University, Tianjin, China
- Collaborative
Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Huawei Yang
- School
of Chemical Engineering and Technology, Tianjin University, Tianjin, China
- Collaborative
Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Zhaohe Huang
- School
of Chemical Engineering and Technology, Tianjin University, Tianjin, China
- Collaborative
Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Baoyu Wang
- School
of Chemical Engineering and Technology, Tianjin University, Tianjin, China
- Collaborative
Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Rong Deng
- School
of Chemical Engineering and Technology, Tianjin University, Tianjin, China
- Collaborative
Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Luhong Zhang
- School
of Chemical Engineering and Technology, Tianjin University, Tianjin, China
- Collaborative
Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
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Yu G, Zhang L, Alhumaydhi IA, Abdeltawab AA, Bagabas AA, Al-Megren HA, Al-Deyab SS, Chen X. Separation of propylene and propane by alkylimidazolium thiocyanate ionic liquids with Cu + salt. Sep Purif Technol 2015. [DOI: 10.1016/j.seppur.2015.10.022] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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