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Principle and Feasibility Study of Proposed Hydrate-Based Cyclopentane Purification Technology

Author

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  • Xianbing Hu

    (Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, School of Energy & Power Engineering, Dalian University of Technology, Dalian 116024, China)

  • Lingjie Sun

    (Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, School of Energy & Power Engineering, Dalian University of Technology, Dalian 116024, China)

  • Chengyang Yuan

    (Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, School of Energy & Power Engineering, Dalian University of Technology, Dalian 116024, China)

  • Man Li

    (Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, School of Energy & Power Engineering, Dalian University of Technology, Dalian 116024, China)

  • Hongsheng Dong

    (Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, School of Energy & Power Engineering, Dalian University of Technology, Dalian 116024, China
    Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China)

  • Lunxiang Zhang

    (Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, School of Energy & Power Engineering, Dalian University of Technology, Dalian 116024, China)

  • Lei Yang

    (Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, School of Energy & Power Engineering, Dalian University of Technology, Dalian 116024, China)

  • Jiafei Zhao

    (Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, School of Energy & Power Engineering, Dalian University of Technology, Dalian 116024, China)

  • Yongchen Song

    (Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, School of Energy & Power Engineering, Dalian University of Technology, Dalian 116024, China)

Abstract

The separation of azeotropic mixtures has conventionally been one of the most challenging tasks in industrial processes due to the fact that components in the mixture will undergo gas–liquid phase transition at the same time. We proposed a method for separating azeotropes using hydrate formation as a solid–liquid phase transition. The feasibility of hydrate-based separation is determined by analyzing the crystal structure and chemical bonds of hydrate. Taking the azeotrope cyclopentane and neohexane in petroleum as an example, cyclopentane (95%) was purified to 98.56% yield using the proposed hydrate-based cyclopentane purification technology. However, this is difficult to achieve using conventional distillation methods. The proposed method is simple in operation and yields a good separation effect. This study provides a new method for separating cyclopentane and neohexane.

Suggested Citation

  • Xianbing Hu & Lingjie Sun & Chengyang Yuan & Man Li & Hongsheng Dong & Lunxiang Zhang & Lei Yang & Jiafei Zhao & Yongchen Song, 2023. "Principle and Feasibility Study of Proposed Hydrate-Based Cyclopentane Purification Technology," Energies, MDPI, vol. 16(12), pages 1-10, June.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:12:p:4681-:d:1169926
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    References listed on IDEAS

    as
    1. E. Dendy Sloan, 2003. "Fundamental principles and applications of natural gas hydrates," Nature, Nature, vol. 426(6964), pages 353-359, November.
    2. Dong, Hongsheng & Wang, Jiaqi & Xie, Zhuoxue & Wang, Bin & Zhang, Lunxiang & Shi, Quan, 2021. "Potential applications based on the formation and dissociation of gas hydrates," Renewable and Sustainable Energy Reviews, Elsevier, vol. 143(C).
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