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Efficient propyne/propadiene separation by microporous crystalline physiadsorbents

Author

Listed:
  • Yun-Lei Peng

    (Nankai University
    University of Limerick)

  • Ting Wang

    (Nankai University)

  • Chaonan Jin

    (Nankai University)

  • Cheng-Hua Deng

    (University of Limerick)

  • Yanming Zhao

    (Zhengzhou University)

  • Wansheng Liu

    (Nankai University)

  • Katherine A. Forrest

    (University of South Florida; 4202 East Fowler Avenue, CHE205)

  • Rajamani Krishna

    (University of Amsterdam; Science Park 904)

  • Yao Chen

    (Nankai University)

  • Tony Pham

    (University of South Florida; 4202 East Fowler Avenue, CHE205)

  • Brian Space

    (University of South Florida; 4202 East Fowler Avenue, CHE205)

  • Peng Cheng

    (Nankai University
    Nankai University
    Nankai University)

  • Michael J. Zaworotko

    (University of Limerick)

  • Zhenjie Zhang

    (Nankai University
    Nankai University
    Nankai University)

Abstract

Selective separation of propyne/propadiene mixture to obtain pure propadiene (allene), an essential feedstock for organic synthesis, remains an unsolved challenge in the petrochemical industry, thanks mainly to their similar physicochemical properties. We herein introduce a convenient and energy-efficient physisorptive approach to achieve propyne/propadiene separation using microporous metal-organic frameworks (MOFs). Specifically, HKUST-1, one of the most widely studied high surface area MOFs that is available commercially, is found to exhibit benchmark performance (propadiene production up to 69.6 cm3/g, purity > 99.5%) as verified by dynamic breakthrough experiments. Experimental and modeling studies provide insight into the performance of HKUST-1 and indicate that it can be attributed to a synergy between thermodynamics and kinetics that arises from abundant open metal sites and cage-based molecular traps in HKUST-1.

Suggested Citation

  • Yun-Lei Peng & Ting Wang & Chaonan Jin & Cheng-Hua Deng & Yanming Zhao & Wansheng Liu & Katherine A. Forrest & Rajamani Krishna & Yao Chen & Tony Pham & Brian Space & Peng Cheng & Michael J. Zaworotko, 2021. "Efficient propyne/propadiene separation by microporous crystalline physiadsorbents," Nature Communications, Nature, vol. 12(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-25980-y
    DOI: 10.1038/s41467-021-25980-y
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    Cited by:

    1. Yan Su & Ken-ichi Otake & Jia-Jia Zheng & Ping Wang & Qing Lin & Susumu Kitagawa & Cheng Gu, 2024. "Diffusion-rate sieving of propylene and propane mixtures in a cooperatively dynamic porous crystal," Nature Communications, Nature, vol. 15(1), pages 1-8, December.
    2. Xiaoyi Xu & Xinyu Wu & Kai Xu & Hong Xu & Hongzheng Chen & Ning Huang, 2023. "Pore partition in two-dimensional covalent organic frameworks," Nature Communications, Nature, vol. 14(1), pages 1-9, December.

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