SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2023, Vol. 54 ›› Issue (2): 215-231.DOI: 10.1016/j.cjche.2022.03.017

Previous Articles     Next Articles

The Joule–Thomson effect of (CO2 + H2) binary system relevant to gas switching reforming with carbon capture and storage (CCS)

Zhongyao Zhang, Ming Gao, Xiaopeng Chen, Xiaojie Wei, Jiezhen Liang, Chenghong Wu, Linlin Wang   

  1. School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Petrochemical Resources Processing and Process Intensification Technology, Guangxi University, Nanning 530004, China
  • Received:2021-12-07 Revised:2022-02-27 Online:2023-05-11 Published:2023-02-28
  • Contact: Linlin Wang,E-mail:wanglinlin@gxu.edu.cn
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (21878056), Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology (2019Z002).

The Joule–Thomson effect of (CO2 + H2) binary system relevant to gas switching reforming with carbon capture and storage (CCS)

Zhongyao Zhang, Ming Gao, Xiaopeng Chen, Xiaojie Wei, Jiezhen Liang, Chenghong Wu, Linlin Wang   

  1. School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Petrochemical Resources Processing and Process Intensification Technology, Guangxi University, Nanning 530004, China
  • 通讯作者: Linlin Wang,E-mail:wanglinlin@gxu.edu.cn
  • 基金资助:
    This work was supported by the National Natural Science Foundation of China (21878056), Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology (2019Z002).

Abstract: The Joule–Thomson effect is one of the important thermodynamic properties in the system relevant to gas switching reforming with carbon capture and storage (CCS). In this work, a set of apparatus was set up to determine the Joule–Thomson effect of binary mixtures (CO2 + H2). The accuracy of the apparatus was verified by comparing with the experimental data of carbon dioxide. The Joule–Thomson coefficients (μJT) for (CO2 + H2) binary mixtures with mole fractions of carbon dioxide (χCO2 = 0.1, 0.26, 0.5, 0.86, 0.94) along six isotherms at various pressures were measured. Five equations of state EOSs (PR, SRK, PR, BWR and GERG-2008 equation) were used to calculate the μJT for both pure systems and binary systems, among which the GERG-2008 predicted best with a wide range of pressure and temperature. Moreover, the Joule–Thomson inversion curves (JTIC) were calculated with five equations of state. A comparison was made between experimental data and predicted data for the inversion curve of CO2. The investigated EOSs show a similar prediction of the low-temperature branch of the JTIC for both pure and binary systems, except for the BWRS equation of state. Among all the equations, SRK has the most similar result to GERG-2008 for predicting JTIC.

Key words: Carbon dioxide, Hydrogen, Joule–Thomson coefficient, Joule–Thomson inversion curve, Gas switching reforming (GSR), Carbon capture and storage (CCS)

摘要: The Joule–Thomson effect is one of the important thermodynamic properties in the system relevant to gas switching reforming with carbon capture and storage (CCS). In this work, a set of apparatus was set up to determine the Joule–Thomson effect of binary mixtures (CO2 + H2). The accuracy of the apparatus was verified by comparing with the experimental data of carbon dioxide. The Joule–Thomson coefficients (μJT) for (CO2 + H2) binary mixtures with mole fractions of carbon dioxide (χCO2 = 0.1, 0.26, 0.5, 0.86, 0.94) along six isotherms at various pressures were measured. Five equations of state EOSs (PR, SRK, PR, BWR and GERG-2008 equation) were used to calculate the μJT for both pure systems and binary systems, among which the GERG-2008 predicted best with a wide range of pressure and temperature. Moreover, the Joule–Thomson inversion curves (JTIC) were calculated with five equations of state. A comparison was made between experimental data and predicted data for the inversion curve of CO2. The investigated EOSs show a similar prediction of the low-temperature branch of the JTIC for both pure and binary systems, except for the BWRS equation of state. Among all the equations, SRK has the most similar result to GERG-2008 for predicting JTIC.

关键词: Carbon dioxide, Hydrogen, Joule–Thomson coefficient, Joule–Thomson inversion curve, Gas switching reforming (GSR), Carbon capture and storage (CCS)