Insights into size effects of Pt/Al<sub>2</sub>O<sub>3</sub> catalysts on hydrogen production from methylcyclohexane dehydrogenation

Wu, Yiqing; Li, Yuanyuan; Yu, Xinbin; Ma, Xiaohan; Boebinger, Matthew; Weber, Juliane; Wu, Zili

doi:10.1039/d3cy01568h

Catal. Sci. Technol.

2024

DOI: 10.1039/d3cy01568h

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Insights into size effects of Pt/Al₂O₃ catalysts on hydrogen production from methylcyclohexane dehydrogenation

Yiqing Wu,

Yuanyuan Li,

Xinbin Yu

et al.

Abstract: Liquid organic hydrogen carriers (LOHC) have been considered as a promising technique for hydrogen storage and transportation. In this study, we investigated the impacts of Pt size on the catalytic...

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Zeolite Membrane‐Based Low‐Temperature Dehydrogenation of a Liquid Organic Hydrogen Carrier: A Key Step in the Development of a Hydrogen Economy

Kim,

Lee,

Sung

et al. 2024

Advanced Science

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Methylcyclohexane (MCH) dehydrogenation is an equilibrium‐limited reaction that requires high temperatures (>300 °C) for complete conversion. However, high‐temperature operation can degrade catalytic activity and produce unwanted side products. Thus, a hybrid zeolite membrane (Z) is prepared on the inner surface of a tubular support and used it as a wall in a membrane reactor (MR) configuration. Pt/C catalysts is packed diluted with quartz sand inside the Z‐coated tube and applied the MR for MCH dehydrogenation at low temperatures (190–250 °C). Z showed a remarkable H2‐permselectivity in the presence of both toluene and MCH, yielding separation factors over 350. The Z‐based MR achieved higher MCH conversion (75.3% ± 0.8% at 220 °C) than the conventional packed‐bed reactor (56.4% ± 0.3%) and the equilibrium state (53.2%), owing to the selective removal of H2 through Z. In summary, the hybrid zeolite MR enhances MCH dehydrogenation at low temperatures by overcoming thermodynamic limitations and improves the catalytic performance and product selectivity of the reaction.

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Zeolite Membrane‐Based Low‐Temperature Dehydrogenation of a Liquid Organic Hydrogen Carrier: A Key Step in the Development of a Hydrogen Economy

Kim,

Lee,

Sung

et al. 2024

Advanced Science

View full text Add to dashboard Cite

show abstract

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Insights into size effects of Pt/Al₂O₃ catalysts on hydrogen production from methylcyclohexane dehydrogenation

Abstract: Liquid organic hydrogen carriers (LOHC) have been considered as a promising technique for hydrogen storage and transportation. In this study, we investigated the impacts of Pt size on the catalytic...

Cited by 1 publication

References 51 publications

Zeolite Membrane‐Based Low‐Temperature Dehydrogenation of a Liquid Organic Hydrogen Carrier: A Key Step in the Development of a Hydrogen Economy

Zeolite Membrane‐Based Low‐Temperature Dehydrogenation of a Liquid Organic Hydrogen Carrier: A Key Step in the Development of a Hydrogen Economy

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Insights into size effects of Pt/Al2O3 catalysts on hydrogen production from methylcyclohexane dehydrogenation

Abstract: Liquid organic hydrogen carriers (LOHC) have been considered as a promising technique for hydrogen storage and transportation. In this study, we investigated the impacts of Pt size on the catalytic...

Cited by 1 publication

References 51 publications

Zeolite Membrane‐Based Low‐Temperature Dehydrogenation of a Liquid Organic Hydrogen Carrier: A Key Step in the Development of a Hydrogen Economy

Zeolite Membrane‐Based Low‐Temperature Dehydrogenation of a Liquid Organic Hydrogen Carrier: A Key Step in the Development of a Hydrogen Economy

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Insights into size effects of Pt/Al₂O₃ catalysts on hydrogen production from methylcyclohexane dehydrogenation