Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Suehiko Yoshitomi"'
Autor:
Toshio Sato, H. Matsubayashi, Hiroyuki Yasuda, A. Nishijima, Motoyasu Imamura, Hiromichi Shimada, M. Higo, Yuji Yoshimura, Suehiko Yoshitomi
Publikováno v:
Catalysis Today. 39:77-87
Nickel-tungstate/alumina (NiW/Al2O3) and nickel-molybdate/alumina ( NiMo Al 2 O 3 ) catalysts were prepared using an incipient wetness impregnation method with citric acid as a complexing agent. The hydrogenation activity of both sulfided catalysts w
Autor:
Nobuyuki Matsubayashi, A. Nishijima, Motoyasu Imamura, Toshio Sato, Suehiko Yoshitomi, Hiromichi Shimada, M. Higo, Yuji Yoshimura
Publikováno v:
Catalysis Today. 29:221-228
Nickel-tungstate/γ-alumina (NiW) catalysts were prepared by an incipient wetness impregnation method using citric acid as a complexing agent. Citric acid has been used by our research group in preparing cobalt-molybdate and nickel -molybdate catalys
Autor:
Hiromichi Shimada, Motoyasu Imamura, Takashi Kameoka, Masateru Kumoshikari, Akio Nishijima, Toshio Sato, Yuji Yoshimura, Suehiko Yoshitomi, Nobuyuki Matubayashi, Kazumasa Nara
Publikováno v:
Journal of the Japan Institute of Energy. 75:238-246
Two series of Ni-Mo catalysts were prepared using Al2O3 and TiO2 supports. Ni/ (Ni+Mo) ratio of the catalysts was varied, while a total metal loading of Ni and Mo was kept constant. Sulfiding conditions were optimized to give superior catalytic activ
Autor:
Yuji Yoshimura, Hiromiti Shimada, Motoyasu Imamura, Tosio Sato, Manabu Higo, Akio Nishijima, Suehiko Yoshitomi, Nobuyuki Matubayashi
Publikováno v:
Journal of The Japan Petroleum Institute. 38:258-266
反応原料中の硫黄化合物が硫化物触媒の核水素化 (HY) 活性と水素化分解 (HC) 活性に与える影響について検討を行った。硫化物触媒のHY活性の序列は, 反応中に硫黄化合物が存在しない場合
Publikováno v:
Journal of the Japan Institute of Energy. 74:147-153
Autor:
Suehiko Yoshitomi, Nobuyuki Matsubayashi, Akio Nishijima, Takashi Kameoka, Motoyasu Imamura, T. Sato, Hiroshi Yanase, Yuji Yoshimura, Hiromichi Shimada
Publikováno v:
Energy & Fuels. 8:435-445
Temperature-programmed oxidation of NiMo, CoMo and NiW hydrotreating catalysts from hydrotreatment of vacuum gas oil and coal-derived oils was carried out in thermogravimetric and fixed-bed reactors. Attempts were made to elucidate the mechanism of o
Autor:
Hiromichi Shimada, Nobuyuki Matsubayashi, Suehiko Yoshitomi, Jun Tsutsui, Akio Nishijima, Akira Miyazawa, Yuji Yoshimura, Toshio Sato
Publikováno v:
Journal of The Japan Petroleum Institute. 36:291-298
硫化モリブデン触媒の水素化活性の飛躍的な向上を目的として, 助触媒として用いられるCo, NiおよびFeなどの活性金属種を有機金属錯体としてMoO3/Al2O3に担持させ触媒を調製した。モデル
Publikováno v:
ChemInform. 23
The addition of thiols to methyl propiolate was remarkably accelerated in the presence of alumina to give the Z-isomer of the 1:1 adducts stereoselectively, in which alumina acts as a bifunctional catalyst of acid and base.
Publikováno v:
ChemInform. 23
The iodination of aromatic compounds (polymethylbenzenes, alkyl phenyl ethers, and polynuclear aromatic hydrocarbons) with iodine in combination with copper(II) chloride or sulfate supported on alumina proceeds well under mild conditions to selective
Autor:
Yoichi Kodera, Suehiko Yoshitomi, Takeshi Murayama, Koji Ukegawa, Takashi Ozawa, Akihiro Wakisaka
Publikováno v:
Journal of the Japan Society of Colour Material. 65:294-297