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A new reforming process based on CH4 decomposition using a hydrogen-permeating membrane reactor |
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| Authors: | T Ishihara K Nishida H Nishiguchi Y Takita and K Chaki |
| Institution: | (1) Department of Applied Chemistry, Faculty of Engineering, Kyushu University, Hakozaki 6-10-1, Higashi-Ku, Fukuoka, Japan;(2) Department of Applied Chemistry, Faculty of Engineering, Oita University, Dannoharu 700, Oita 870-1192, Japan;(3) Japan Petroleum Exploration Co. Ltd., Higashishinagawa 2-2-20, Shinagawa-ku, Tokyo 140-0002, Japan |
| Abstract: | A new reforming process was studied using Ni/SiO2 with a hydrogen-permeating membrane reactor. Nickel catalyst supported on SiO2 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. |
| Keywords: | Reforming hydrogen permeation Ni-based catalyst membrane reactor |
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