A new reforming process based on CH4 decomposition using a hydrogen-permeating membrane reactor

We investigated the pore properties of inorganic membranes used in the hydrogen separation industry. A microporous SiON membrane derived from a preceramic polysiloxazane was pyrolyzed for the analysis of the porosity characteristics. The involved reactions were studied using a combination of thermogravimetry and infrared spectroscopy of the solids. The SiON membrane showed a dense microporous structure and successfully formed a coating layer of pores on the intermediate membrane. The BET surface area and pore volume showed maximum values (653.4 m 2 /g and 0.35 cm 3 /g, respectively) at a pyrolysis temperature of 500°C.

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“…They can also be used as gas separators for the separation and purification of mixed gases under harsh conditions [4,5].…”

Section: Introductionmentioning

confidence: 99%

Pore characterization of a microporous SiON membrane derived from polysiloxazane via thermal pyrolysis: prospects for hydrogen separation

et al. 2010

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A New Type Hydrogen Permeable Membrane and Application for H₂O₂ Synthesis

et al. 2017

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Development of a hydrogen permeable membrane reactor in chemical process has been desired because of a great reduction of energy consumption. Previous studies were limited to Pd membranes. A new type of hydrogen permeable membrane layered three sheets (a reduction‐Pt‐catalyst sheet | a proton and electron co‐conductive sheet | an oxidation‐Pt‐catalyst sheet) was developed. The middle sheet was prepared by casting a paste of carbon powder and Nafion solution. When a gas mixture of H2 and He (1:1) was introduced to the oxidation‐catalyst compartment at 298 K, a high concentration of H2 was observed in the reduction‐catalyst compartment, a maximum H2/He ratio as 217. H2 selectively permeated through the membrane. This concept was applied for synthesis of H2O2. When O2 and H2 were respectively introduced to the Co‐N−C reduction‐catalyst and the Pt oxidation‐catalyst, production of a pure H2O2 aqueous solution of 3.8 mol dm−3 was succeeded with a good selectivity as 42 % based on H2 at 278 K.

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Methane decomposition to COx-free hydrogen and nano-carbon material on group 8–10 base metal catalysts: A review

2011

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A new reforming process based on CH4 decomposition using a hydrogen-permeating membrane reactor

Cited by 5 publications

References 9 publications

Pore characterization of a microporous SiON membrane derived from polysiloxazane via thermal pyrolysis: prospects for hydrogen separation

Pore characterization of a microporous SiON membrane derived from polysiloxazane via thermal pyrolysis: prospects for hydrogen separation

A New Type Hydrogen Permeable Membrane and Application for H₂O₂ Synthesis

Methane decomposition to COx-free hydrogen and nano-carbon material on group 8–10 base metal catalysts: A review

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A new reforming process based on CH4 decomposition using a hydrogen-permeating membrane reactor

Cited by 5 publications

References 9 publications

Pore characterization of a microporous SiON membrane derived from polysiloxazane via thermal pyrolysis: prospects for hydrogen separation

Pore characterization of a microporous SiON membrane derived from polysiloxazane via thermal pyrolysis: prospects for hydrogen separation

A New Type Hydrogen Permeable Membrane and Application for H2O2 Synthesis

Methane decomposition to COx-free hydrogen and nano-carbon material on group 8–10 base metal catalysts: A review

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A New Type Hydrogen Permeable Membrane and Application for H₂O₂ Synthesis