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Experimental Study on Breakthrough Separation for Hydrogen Recovery from Coke Oven Gas Using ZIF-8 Slurry

Author

Listed:
  • Wan Chen

    (State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
    These authors contributed equally to this work.)

  • Minglong Wang

    (State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
    These authors contributed equally to this work.)

  • Shaowu Yang

    (State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China)

  • Zixuan Huang

    (State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China)

  • Mingke Yang

    (State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China)

  • Xiaowan Peng

    (State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China)

  • Bei Liu

    (State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China)

  • Guangjin Chen

    (State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China)

Abstract

A large amount of COG (coke oven gas) is produced from coking plants every year, which contains 55–60% H 2 . In this work, the breakthrough separation of H 2 from COG with ZIF-8/ethylene glycol-water slurry was studied. Following the investigation of the (ab-ad)sorption isotherms of the single component gas CH 4 and H 2 , the main components of coke oven gas, in different slurries and their corresponding viscosities, and the influence of the operating conditions on the dynamic performance of CH 4 /H 2 separation in slurry were studied in a bubble column. Low temperature, inlet flow rate, high pressure, and solid content can extend the breakthrough time, where the longest breakthrough time interval between H 2 and CH 4 can be as long as 70 min, meaning the high purity of H 2 product could be obtained easily. All the results of this work prove the feasibility of the slurry method to separate CH 4 /H 2 mixture and provide a theoretical basis for practical industrial applications.

Suggested Citation

  • Wan Chen & Minglong Wang & Shaowu Yang & Zixuan Huang & Mingke Yang & Xiaowan Peng & Bei Liu & Guangjin Chen, 2022. "Experimental Study on Breakthrough Separation for Hydrogen Recovery from Coke Oven Gas Using ZIF-8 Slurry," Energies, MDPI, vol. 15(4), pages 1-12, February.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:4:p:1487-:d:751739
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    References listed on IDEAS

    as
    1. Yang, Ming-Ke & Han, Yu & Zou, En-Bao & Chen, Wan & Peng, Xiao-Wan & Dong, Bao-Can & Sun, Chang-Yu & Liu, Bei & Chen, Guang-Jin, 2020. "Separation of IGCC syngas by using ZIF-8/dimethylacetamide slurry with high CO2 sorption capacity and sorption speed but low sorption heat," Energy, Elsevier, vol. 201(C).
    2. Chen, Wan & Chen, Mengzijing & Yang, Mingke & Zou, Enbao & Li, Hai & Jia, Chongzhi & Sun, Changyu & Ma, Qinglan & Chen, Guangjin & Qin, Huibo, 2019. "A new approach to the upgrading of the traditional propylene carbonate washing process with significantly higher CO2 absorption capacity and selectivity," Applied Energy, Elsevier, vol. 240(C), pages 265-275.
    3. Yan, Shuren & Zhu, Ding & Zhang, Zhiyong & Li, Hai & Chen, Guangjin & Liu, Bei, 2019. "A pilot-scale experimental study on CO2 capture using Zeolitic imidazolate framework-8 slurry under normal pressure," Applied Energy, Elsevier, vol. 248(C), pages 104-114.
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