SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2019, Vol. 27 ›› Issue (6): 1374-1382.DOI: 10.1016/j.cjche.2019.01.012

• Special Issue: Separation Process Intensification of Chemical Engineering • Previous Articles     Next Articles

Separation of light hydrocarbons with ionic liquids: A review

Yuqi Huang, Yuanbin Zhang, Huabin Xing   

  1. College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
  • Received:2018-12-13 Revised:2019-01-11 Online:2019-08-19 Published:2019-06-28
  • Contact: Huabin Xing
  • Supported by:
    Supported by the National Natural Science Foundation of China (No. 21725603), Zhejiang Provincial Natural Science Foundation of China (LZ18B060001) and the National Program for Support of Top-notch Young Professionals (H. X.).

Separation of light hydrocarbons with ionic liquids: A review

Yuqi Huang, Yuanbin Zhang, Huabin Xing   

  1. College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
  • 通讯作者: Huabin Xing
  • 基金资助:
    Supported by the National Natural Science Foundation of China (No. 21725603), Zhejiang Provincial Natural Science Foundation of China (LZ18B060001) and the National Program for Support of Top-notch Young Professionals (H. X.).

Abstract: Light hydrocarbons (C1-C4) are fundamental raw materials in the petroleum and chemical industry. Separation and purification of structurally similar paraffin/olefin/alkyne mixtures are important for the production of highpurity or even polymer-grade light hydrocarbons. However, traditional methods such as cryogenic distillation and solvent absorption are energy-intensive and environmentally unfriendly processes. Ionic liquids (ILs) as a new alternative to organic solvents have been proposed as promising green media for light hydrocarbon separation due to their unique tunable structures and physicochemical properties resulting from the variations of the cations and anions such as low volatility, high thermal stability, large liquidus range, good miscibility with light hydrocarbons, excellent molecular recognition ability and adjustable hydrophylicity/hydrophobicity. In this review, the recent progresses on the light hydrocarbon separation using ILs are summarized, and some parameters of ILs that influence the separation performance are discussed.

Key words: Ionic liquids, Hydrocarbons, Absorption, Sepatation, Solubility

摘要: Light hydrocarbons (C1-C4) are fundamental raw materials in the petroleum and chemical industry. Separation and purification of structurally similar paraffin/olefin/alkyne mixtures are important for the production of highpurity or even polymer-grade light hydrocarbons. However, traditional methods such as cryogenic distillation and solvent absorption are energy-intensive and environmentally unfriendly processes. Ionic liquids (ILs) as a new alternative to organic solvents have been proposed as promising green media for light hydrocarbon separation due to their unique tunable structures and physicochemical properties resulting from the variations of the cations and anions such as low volatility, high thermal stability, large liquidus range, good miscibility with light hydrocarbons, excellent molecular recognition ability and adjustable hydrophylicity/hydrophobicity. In this review, the recent progresses on the light hydrocarbon separation using ILs are summarized, and some parameters of ILs that influence the separation performance are discussed.

关键词: Ionic liquids, Hydrocarbons, Absorption, Sepatation, Solubility