Hydrogen Purification from Chemical Hydride Using Pure Silica Zeolite Membranes

Kida, Koji; Maeta, Yasushi; Kuno, Taichi; Yogo, Katsunori

doi:10.1246/cl.170776

Cited by 5 publications

(1 citation statement)

References 21 publications

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“…enhancing hydrogen permeance via the surface diffusion mechanism even at the high temperature of 500 °C. Alternatively, applications up to 300 °C will be also attractive; for instance, the hydrogen separation/purification process for the dehydrogenation of chemical hydrides 35,36 under reduction conditions in novel hydrogen storage-transportation systems. Further study on the evaluation of membrane performance as well as lifetime of Co-doped amorphous silica is under progress.…”

Section: Si-oh/od Conversion Behaviorsmentioning

confidence: 99%

Hydrogen transport property of polymer-derived cobalt cation-doped amorphous silica

Tada

Ando

Asaka

et al. 2021

Inorg. Chem. Front.

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Section: Si-oh/od Conversion Behaviorsmentioning

confidence: 99%

Hydrogen transport property of polymer-derived cobalt cation-doped amorphous silica

Tada

Ando

Asaka

et al. 2021

Inorg. Chem. Front.

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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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Static state synthesis of STT zeolite membranes for high-pressure H2/CH4 separation

Zhou,

Zhu,

Dai

et al. 2024

Journal of Membrane Science

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Hydrogen Purification from Chemical Hydride Using Pure Silica Zeolite Membranes

Cited by 5 publications

References 21 publications

Hydrogen transport property of polymer-derived cobalt cation-doped amorphous silica

Hydrogen transport property of polymer-derived cobalt cation-doped amorphous silica

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

Static state synthesis of STT zeolite membranes for high-pressure H2/CH4 separation

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