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    A state-of-the-art review on capture and separation of hazardous hydrogen sulfide (H2S): Recent advances, challenges and outlook

    Access Status
    Fulltext not available
    Authors
    Chan, Yi Herng
    Lock, Serene Sow Mun
    Wong, Mee Kee
    Yiin, Chung Loong
    Loy, Adrian Chun Minh
    Cheah, Kin Wai
    Yew, Slyvester Wang Chai
    Li, Claudia
    How, Bing Shen
    Chin, Bridgid
    Chan, Zhe Phak
    Lam, Su Shiung
    Date
    2022
    Type
    Journal Article
    
    Metadata
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    Citation
    Chan, Y.H. and Lock, S.S.M. and Wong, M.K. and Yiin, C.L. and Loy, A.C.M. and Cheah, K.W. and Yew, S.W.C. et al. 2022. A state-of-the-art review on capture and separation of hazardous hydrogen sulfide (H2S): Recent advances, challenges and outlook. Environmental Pollution. 314: 120219.
    Source Title
    Environmental Pollution
    DOI
    10.1016/j.envpol.2022.120219
    Faculty
    Global Curtin
    School
    Global Curtin
    URI
    http://hdl.handle.net/20.500.11937/89348
    Collection
    • Curtin Research Publications
    Abstract

    Hydrogen sulfide (H2S) is a flammable, corrosive and lethal gas even at low concentrations (ppm levels). Hence, the capture and removal of H2S from various emitting sources (such as oil and gas processing facilities, natural emissions, sewage treatment plants, landfills and other industrial plants) is necessary to prevent and mitigate its adverse effects on human (causing respiratory failure and asphyxiation), environment (creating highly flammable and explosive environment), and facilities (resulting in corrosion of industrial equipment and pipelines). In this review, the state-of-the-art technologies for H2S capture and removal are reviewed and discussed. In particular, the recent technologies for H2S removal such as membrane, adsorption, absorption and membrane contactor are extensively reviewed. To date, adsorption using metal oxide-based sorbents is by far the most established technology in commercial scale for the fine removal of H2S, while solvent absorption is also industrially matured for bulk removal of CO2 and H2S simultaneously. In addition, the strengths, limitations, technological gaps and way forward for each technology are also outlined. Furthermore, the comparison of established carbon capture technologies in simultaneous and selective removal of H2S–CO2 is also comprehensively discussed and presented. It was found that the existing carbon capture technologies are not adequate for the selective removal of H2S from CO2 due to their similar characteristics, and thus extensive research is still needed in this area.

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