Stable Cr-MFI Catalysts for the Nonoxidative Dehydrogenation of Ethane: Catalytic Performance and Nature of the Active Sites Article Swipe

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Sudipta De , Samy Ould‐Chikh , Antonio Aguilar‐Tapia , Jean-Louis Hazemann , Andrea Zitolo , Adrián Ramírez , Selvedin Telalović , Jorge Gascón ·

YOU? · · 2021 · Open Access · · DOI: https://doi.org/10.1021/acscatal.0c05170

The nonoxidative catalytic dehydrogenation of ethane allows the production of ethylene at lower temperatures than those applied in steam crackers. This, however, requires stable catalysts that minimize coke production. Here, we report a single-component, promoter-free, low-loading, Cr-based catalyst exhibiting high activity, long-term stability, and improved regeneration properties for the direct dehydrogenation of ethane to ethylene. According to our detailed operando X-ray absorption spectroscopic analysis, the use of all-silica MFI zeolite as support promotes the stabilization of CrII(−O–Si≡)2 species with high coke resistance, even when the dehydrogenation is carried out under high ethane partial pressures (1.5 bar).

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Dehydrogenation Catalysis Ethylene Coke Zeolite Chemistry Inorganic chemistry Hydrocarbon Chemical engineering Organic chemistry Engineering

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Type: article
Language: en
Landing Page: https://doi.org/10.1021/acscatal.0c05170
PDF: https://pubs.acs.org/doi/pdf/10.1021/acscatal.0c05170
OA Status: hybrid
Cited By: 58
References: 63
Related Works: 10
OpenAlex ID: https://openalex.org/W3136186952

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DOI: https://doi.org/10.1021/acscatal.0c05170

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Title: Stable Cr-MFI Catalysts for the Nonoxidative Dehydrogenation of Ethane: Catalytic Performance and Nature of the Active Sites

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Type: article

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Language: en

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Publication year: 2021

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Publication date: 2021-03-16

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Authors: Sudipta De, Samy Ould‐Chikh, Antonio Aguilar‐Tapia, Jean-Louis Hazemann, Andrea Zitolo, Adrián Ramírez, Selvedin Telalović, Jorge Gascón

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Landing page: https://doi.org/10.1021/acscatal.0c05170

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PDF URL: https://pubs.acs.org/doi/pdf/10.1021/acscatal.0c05170

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Concepts: Dehydrogenation, Catalysis, Ethylene, Coke, Zeolite, Chemistry, Inorganic chemistry, Hydrocarbon, Chemical engineering, Organic chemistry, Engineering

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Cited by: 58

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