Zobrazeno 1 - 10
of 287
pro vyhledávání: '"Kimio Kunimori"'
Autor:
Keiichi Tomishige, Kimio Kunimori, Takuya Sakurai, Noorjahan Begum, Shuichi Naito, Toshihiro Miyao, Kazuya Nakamura, Tomohisa Miyazawa
Publikováno v:
Applied catalysis. B, Environmental. 86(1-2):36-44
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Pt/Ni/CeO2/Al2O3 catalyst showed the high performance in the steam gasification of cedar wood at the initial stage, however, the catalyst was deactivated within 2 h. According to the catalyst characterization by means of XRD and
Pt/Ni/CeO2/Al2O3 catalyst showed the high performance in the steam gasification of cedar wood at the initial stage, however, the catalyst was deactivated within 2 h. According to the catalyst characterization by means of XRD and
Autor:
Kimio Kunimori, Toshihiro Miyao, Keiichi Tomishige, Kazu Okumura, Shuichi Naito, Shin Ichi Ito, Kaori Yoshida
Publikováno v:
Applied catalysis. A, General. 351(2):217-225
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Ni catalysts supported on α-Al2O3 modified with small amounts of Pd were prepared by different impregnation methods to investigate catalytic performance and catalyst bed temperature profile in oxidative steam reforming of methan
Ni catalysts supported on α-Al2O3 modified with small amounts of Pd were prepared by different impregnation methods to investigate catalytic performance and catalyst bed temperature profile in oxidative steam reforming of methan
Autor:
Kazu Okumura, Shigeru Kado, Kaori Yoshida, Keiichi Tomishige, Kimio Kunimori, Yuya Mukainakano
Publikováno v:
Chemical Engineering Science. 63:4891-4901
Effects of methane oxygen mixture addition to steam reforming of methane and subsequent removal of the methane oxygen mixture from the oxidative steam reforming of methane on catalytic performance were investigated using monometallic Ni and Pt cataly
Autor:
Kazu Okumura, Hisanori Tanaka, Seiji Naito, Shuichi Naito, Toshihiro Miyao, Keiichi Tomishige, Shigeru Kado, Kimio Kunimori
Publikováno v:
Journal of catalysis. 259(1):138-146
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In catalytic partial oxidation of methane under isothermal conditions, a 0.3 wt% Rh/MgO catalyst modified with Co at a molar ratio of Co/Rh = 1 gave greater CH4 conversion and selectivity to CO and H2 than unmodified 0.3 wt% Rh/M
In catalytic partial oxidation of methane under isothermal conditions, a 0.3 wt% Rh/MgO catalyst modified with Co at a molar ratio of Co/Rh = 1 gave greater CH4 conversion and selectivity to CO and H2 than unmodified 0.3 wt% Rh/M
Autor:
Yoichi Ishida, Takashi Kubota, Shuichi Naito, Hisanori Tanaka, Shin Ichi Ito, Masatoshi Kuriyama, Keiichi Tomishige, Kimio Kunimori, Toshihiro Miyao
Publikováno v:
Applied Catalysis A: General. 343:125-133
The addition of alkali metals over Pt/Al 2 O 3 has both promoting and negative effects on the catalytic performance in the preferential CO oxidation in H 2 -rich stream (PROX), therefore there is an optimum amount of alkali metal. The Pt/Al 2 O 3 cat
Autor:
Shin Ichi Ito, Yoichi Ishida, Hisanori Tanaka, Masatoshi Kuriyama, Kimio Kunimori, Keiichi Tomishige
Publikováno v:
Applied Catalysis A: General. 343:117-124
In preferential CO oxidation in H2-rich stream (PROX), the additive effect of potassium on Pt catalysts was more remarkable over Al2O3 than over SiO2, ZrO2, Nb2O5 and TiO2. The additive effect of potassium to Pt/Al2O3 was more effective than other al
Autor:
Yoshihiro Kubota, Kimio Kunimori, Taka-aki Hanaoka, Kenichi Komura, Y. Imada, Seiji Watanabe, Suresh B. Waghmode, Yoshihiro Sugi, Takehiko Matsuzaki, K. Nakajima
Publikováno v:
Journal of Molecular Catalysis A: Chemical. 285:101-110
The ethylation of biphenyl (BP) with ethene was examined over dealuminated H-mordenite (MOR; SiO 2 /Al 2 O 3 = 206). The ethylation occurred non-shape-selectively, and gave a mixture of ethylbiphenyls (EBPs), diethylbiphenyls (DEBPs), and higher ethy
Publikováno v:
Catalysis today. 132(1-4):101-108
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Pd–Ni bimetallic catalysts prepared by co-impregnation and sequential impregnation methods were compared in the catalytic performance in oxidative steam reforming of methane. The sequential impregnation was more effective to th
Pd–Ni bimetallic catalysts prepared by co-impregnation and sequential impregnation methods were compared in the catalytic performance in oxidative steam reforming of methane. The sequential impregnation was more effective to th
Autor:
Kimio Kunimori, Mohammad Asadullah, Jin Nishikawa, Keiichi Tomishige, Kazuya Nakamura, Tomohisa Miyazawa
Publikováno v:
Catalysis today. 131(1-4):146-155
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In the steam gasification of biomass, the additive effect of noble metals such as Pt, Pd, Rh and Ru to the Ni/CeO2/Al2O3 catalyst was investigated. Among these noble metals, the addition of Pt was most effective even when the loa
In the steam gasification of biomass, the additive effect of noble metals such as Pt, Pd, Rh and Ru to the Ni/CeO2/Al2O3 catalyst was investigated. Among these noble metals, the addition of Pt was most effective even when the loa
Autor:
Keiichi Tomishige, Kazuya Nakamura, Jin Nishikawa, Mohammad Asadullah, Tomohisa Miyazawa, Kimio Kunimori
Publikováno v:
Catalysis Communications. 9:195-201
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The modification of Ni/CeO2/Al2O3 with Pt can make the activation by H2 reduction unnecessary, and this indicates that the Pt/Ni/CeO2/Al2O3 catalyst can be activated automatically by the compounds contained in tar. This can be ex
The modification of Ni/CeO2/Al2O3 with Pt can make the activation by H2 reduction unnecessary, and this indicates that the Pt/Ni/CeO2/Al2O3 catalyst can be activated automatically by the compounds contained in tar. This can be ex