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Instrumental Methods for Cage Occupancy Estimation of Gas Hydrate

Author

Listed:
  • Wenjiu Cai

    (College of Engineering, Peking University, Beijing 100871, China
    Beijing International Center for Gas Hydrate, School of Earth and Space Sciences, Peking University, Beijing 100871, China)

  • Xin Huang

    (SINOPEC Petroleum Exploration and Production Research Institute, Beijing 100083, China)

  • Hailong Lu

    (Beijing International Center for Gas Hydrate, School of Earth and Space Sciences, Peking University, Beijing 100871, China)

Abstract

Studies revealed that gas hydrate cages, especially small cages, are incompletely filled with guest gas molecules, primarily associated with pressure and gas composition. The ratio of hydrate cages occupied by guest molecules, defined as cage occupancy, is a critical parameter to estimate the resource amount of a natural gas hydrate reservoir and evaluate the storage capacity of methane or hydrogen hydrate as an energy storage medium and carbon dioxide hydrate as a carbon sequestration matrix. As the result, methods have been developed to investigate the cage occupancy of gas hydrate. In this review, several instrument methods widely applied for gas hydrate analysis are introduced, including Raman, NMR, XRD, neutron diffraction, and the approaches to estimate cage occupancy are summarized.

Suggested Citation

  • Wenjiu Cai & Xin Huang & Hailong Lu, 2022. "Instrumental Methods for Cage Occupancy Estimation of Gas Hydrate," Energies, MDPI, vol. 15(2), pages 1-24, January.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:2:p:485-:d:721803
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    Citations

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    Cited by:

    1. Olga Gaidukova & Sergey Misyura & Vladimir Morozov & Pavel Strizhak, 2023. "Gas Hydrates: Applications and Advantages," Energies, MDPI, vol. 16(6), pages 1-19, March.
    2. Dmitrii Antonov & Olga Gaidukova & Galina Nyashina & Dmitrii Razumov & Pavel Strizhak, 2022. "Prospects of Using Gas Hydrates in Power Plants," Energies, MDPI, vol. 15(12), pages 1-20, June.
    3. Sergey Misyura & Pavel Strizhak & Anton Meleshkin & Vladimir Morozov & Olga Gaidukova & Nikita Shlegel & Maria Shkola, 2023. "A Review of Gas Capture and Liquid Separation Technologies by CO 2 Gas Hydrate," Energies, MDPI, vol. 16(8), pages 1-20, April.

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