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Spectroscopic Identification on CO 2 Separation from CH 4 + CO 2 Gas Mixtures Using Hydroquinone Clathrate Formation

Author

Listed:
  • Ji-Ho Yoon

    (Department of Energy and Resources Engineering, Korea Maritime and Ocean University, Busan 49112, Korea)

  • Dongwon Lee

    (Department of Environmental Engineering, Kongju National University, 1223-24 Cheonan-daero, Cheonan-si 31080, Korea)

  • Jong-Won Lee

    (Department of Environmental Engineering, Kongju National University, 1223-24 Cheonan-daero, Cheonan-si 31080, Korea)

Abstract

The formation of hydroquinone (HQ) clathrate and the guest behaviors of binary (CH 4 + CO 2 ) gas mixtures were investigated by focusing on an application to separate CO 2 from landfill gases. Spectroscopic measurements show that at two experimental pressures of 20 and 40 bar, CO 2 molecules are preferentially captured in HQ clathrates regardless of the gas composition. In addition, preferential occupation by CO 2 is observed more significantly when the formation pressure and the CH 4 concentration are lower. Because the preferential occupation of CO 2 is found with binary (CH 4 + CO 2 ) gas mixtures regardless of the composition of the feed gas, a clathrate-based process can be applied to CO 2 separation or concentration from landfill gases or (CH 4 + CO 2 ) mixed gases.

Suggested Citation

  • Ji-Ho Yoon & Dongwon Lee & Jong-Won Lee, 2021. "Spectroscopic Identification on CO 2 Separation from CH 4 + CO 2 Gas Mixtures Using Hydroquinone Clathrate Formation," Energies, MDPI, vol. 14(14), pages 1-9, July.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:14:p:4068-:d:589115
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    References listed on IDEAS

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    1. Sang Jun Yoon & Dongwon Lee & Ji-Ho Yoon & Jong-Won Lee, 2020. "Guest Partitioning and High CO 2 Selectivity in Hydroquinone Clathrates Formed from Ternary (CO + CO 2 + H 2 ) Gas Mixtures," Energies, MDPI, vol. 13(14), pages 1-10, July.
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