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

T. Ishihara; K. Nishida; H. Nishiguchi; Y. Takita; K. Chaki

doi:10.1163/156856706777346480

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

T. Ishihara, K. Nishida, H. Nishiguchi, Y. Takita, K. Chaki

Materials Science and Engineering, School of Engineering

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

A new reforming process was studied using Ni/SiO₂ with a hydrogen-permeating membrane reactor. Nickel catalyst supported on SiO ₂ is highly active for CH₄-H₂O-O₂ reaction in membrane reactor and the reaction close to CH₄ + 0.35O₂ + 1.3H₂O → CO₂ + 3.3H₂ proceeds at 873 K. Since the selectivity to carbon and CO₂ increased and decreased with decreasing contact time respectively, it is considered that the reaction was started by decomposition of CH₄ followed by oxidation of C and water shift reaction. Therefore, the reaction mechanism was different from so-called autothermal reforming (ATR) reaction.

Original language	English
Pages (from-to)	253-262
Number of pages	10
Journal	Research on Chemical Intermediates
Volume	32
Issue number	3-4
DOIs	https://doi.org/10.1163/156856706777346480
Publication status	Published - Jul 10 2006

All Science Journal Classification (ASJC) codes

Chemistry(all)

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abstract = "A new reforming process was studied using Ni/SiO2 with a hydrogen-permeating membrane reactor. Nickel catalyst supported on SiO 2 is highly active for CH4-H2O-O2 reaction in membrane reactor and the reaction close to CH4 + 0.35O2 + 1.3H2O → CO2 + 3.3H2 proceeds at 873 K. Since the selectivity to carbon and CO2 increased and decreased with decreasing contact time respectively, it is considered that the reaction was started by decomposition of CH4 followed by oxidation of C and water shift reaction. Therefore, the reaction mechanism was different from so-called autothermal reforming (ATR) reaction.",

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AU - Ishihara, T.

AU - Nishida, K.

AU - Nishiguchi, H.

AU - Takita, Y.

AU - Chaki, K.

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AB - A new reforming process was studied using Ni/SiO2 with a hydrogen-permeating membrane reactor. Nickel catalyst supported on SiO 2 is highly active for CH4-H2O-O2 reaction in membrane reactor and the reaction close to CH4 + 0.35O2 + 1.3H2O → CO2 + 3.3H2 proceeds at 873 K. Since the selectivity to carbon and CO2 increased and decreased with decreasing contact time respectively, it is considered that the reaction was started by decomposition of CH4 followed by oxidation of C and water shift reaction. Therefore, the reaction mechanism was different from so-called autothermal reforming (ATR) reaction.

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