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Article Navigation >  Green Energy&Environment  > 2016  >  1(3): 195-200
Yujiao Xie, Haifeng Dong, Suojiang Zhang, Xiaohua Lu, Xiaoyan Ji. Solubilities of CO2, CH4, H2, CO and N2 in choline chloride/urea. Green Energy&Environment, 2016, 1(3): 195-200. doi: 10.1016/j.gee.2016.09.001
Citation: Yujiao Xie, Haifeng Dong, Suojiang Zhang, Xiaohua Lu, Xiaoyan Ji. Solubilities of CO2, CH4, H2, CO and N2 in choline chloride/urea. Green Energy&Environment, 2016, 1(3): 195-200. doi: 10.1016/j.gee.2016.09.001
shu

Solubilities of CO2, CH4, H2, CO and N2 in choline chloride/urea

doi: 10.1016/j.gee.2016.09.001
  • a.

    Energy Engineering, Division of Energy Science, Luleå University of Technology, 97187 Luleå, Sweden

  • b.

    Beijing Key Laboratory of Ionic Liquids Clean Process, State Key Laboratory of Multiphase Complex System, Institute of Process Engineering, Chinese Academy of Sciences, 100190 Beijing, China

  • c.

    Key Laboratory of Material and Chemical Engineering, Nanjing Tech University, 210009 Nanjing, China

More Information
  • Corresponding author: E-mail address: yujiao.xie@ltu.se (Yujiao Xie); E-mail address: xiaoyan.ji@itu.se (Xiaoyan Ji)
  • Received date 29 July 2016, Accepted date 01 September 2016, RevRecd date 31 August 2016, Available online 08 September 2016, Publish date 31 October 2016,
    Abstract
  • Solubilities of CO2, CH4, H2, CO and N2 in choline chloride/urea (ChCl/Urea) were investigated at temperatures ranging from 308.2 to 328.2 K and pressures ranging from 0.6 to 4.6 MPa. The results show that the solubilities of gases increase with increasing pressure and decreasing temperature. The solubility of CO2 is higher than that of CH4, H2, CO and N2, which indicates that ChCl/Urea may be used as a potential solvent for CO2 capture from the gas mixture. Solubility of CO2 in ChCl/Urea was fitted by Non-Random Two-Liquid and Redlich–Kwong (NRTL-RK) model, and solubility of CH4, H2, CO or N2 in ChCl/Urea was fitted by Henry's Law. The standard enthalpy, standard Gibbs energy and standard entropy of gases were calculated. Additionally, the CO2/CH4 selectivities in water, dry ChCl/Urea and aqueous ChCl/Urea were further discussed.

     

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