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Inui, Tomoyuki,Ichino, Kotaro,Matsuoka, Isao,Takeguchi, Tatsuya,Iwamoto, Shinji,Pu, Shu Bin,Nishimoto, Sei-ichi 한국화학공학회 1997 Korean Journal of Chemical Engineering Vol.14 No.6
Development in highly active catalysts for the reforming of methane with CO₂and partial oxidation of methane was conducted to produce hydrogen and carbon monoxide with high reaction rates. An Ni-based four-components catalyst, Ni-Ce₂O₃-Pt-Rh, supported on an alumina wash-coated ceramic fiber in a plate shape was suitable for the objective reaction. By combining the catalytic combustion of ethane or propane, methane conversion was markedly enhanced, and a high space-time yield of syngas, 25,000 ㏖/ℓ·h was obtained at a catalyst temperature of 700℃ or furnace temperature of 500℃. The extraordinary high space-time yield of syngas was also confirmed even under the very rapid flow rate conditions as a contact time of 3 m-sec by using a monolithic shape of catalyst bed without back pressure.
( Tomoyuki Inui ),( Kotaro Ichino ),( Isao Matsuoka ),( Tatsuya Takeguchi ),( Shinji Iwamoto ),( Shu Bin Pu ),( Sei Ichi Nishimoto ) 한국화학공학회 1997 Korean Journal of Chemical Engineering Vol.14 No.6
Development in highly active catalysts for the reforming of methane with CO₂and partial oxidation of methane was conducted to produce hydrogen and carbon monoxide with high reaction rates. An Ni-based four-components catalyst, Ni-Ce₂O₃-Pt-Rh, supported on an alumina wash-coated ceramic fiber in a plate shape was suitable for the objective reaction. By combining the catalytic combustion of ethane or propane, methane conversion was markedly enhanced, and a high space-time yield of syngas, 25,000 ㏖/ℓ·h was obtained at a catalyst temperature of 700℃ or furnace temperature of 500℃. The extraordinary high space-time yield of syngas was also confirmed even under the very rapid flow rate conditions as a contact time of 3 m-sec by using a monolithic shape of catalyst bed without back pressure.
Bunsho Ohtani,Yoshiko Moriguchi,Nishimoto, Sei-Ichi,Tomoyuki Inui Korean Society of Photoscience 1994 Journal of Photosciences Vol.1 No.2
Photocatalytic ($\lambda$$_{ex}$ > 300 nm) reaction at room temperature by platinized titanium (IV) oxide particles produced 1-methyl-1, 2, 3, 4-tetrahydroisoquinolines (MIQ's) from phenethylamines in aqueous ethanol suspension under deaerated atmosphere. Among the phenethylamines, dopamine (2-(3, 4-dihydroxyphenyl) ethylamine) showed the highest reactivity to give MIQ almost selectively under the neutralized conditions. The other phenethylamines gave predominantly N-alkylated and N, N-dialkylated products in the methanol or ethanol solutions. The reaction mechanism includes a Schiff base intermediate to undergo either nucleophilic attack leading to MIQ or reduction to N-alkylated products.
NMR Characterization of Ga-or Fe-MCM-41 and its Comparison with MFI-type Ga-or Fe-silicate
Takeguchi, Tatsuya,Kim, Jin-Bae,Inui, Tomoyuki 전남대학교 촉매연구소 1997 촉매학술발표회 Vol.- No.14
It has been reported that incorporation of Fe or Ga into the framework of MFI zeolite structure exhibits excellent functions, such as gasoline synthesis [1] and aromatization [2]. On the other hand, Mobil has patented a family of mesoporous molecular sieve materials designated MCM-41 [3], while Inagaki et al. also have prepared the mesoporous materials from Kanemite [4]. These materials have their uniform and relatively large pore diameter ranging from 15 to 100 Å [3]. Application to the catalyst is promising especial for bulky hydrocarbons or rapid conversion due to low diffusion resistance resulting from larger pore sizes [5]. In this study, the effect of incorporation of Ga and Fe into the MFI zeolite and MCM-41 was examined.
Synthesis of NiAPSO-34 Catalysts by Rapid Crystallization Method and their Catalytic Performance
Kang, Mi Sook,Um, Myeong Heon,Lee, Chul Tae,Inui, Tomoyuki 한국공업화학회 1998 Journal of Industrial and Engineering Chemistry Vol.4 No.3
The influence of acid sites of NiAPSO-34 on the catalytic performances was investigated in acid sites of NiAPSO-34 has influence on catalytic performance. NiAPSO-34 catalysts with various Al/Si ratios were synthesized by rapid crystallization method and characterized. As a result, it was illustrated that the Al/Si ratio has a considerable influence on the morphology of NiAPSO-34 crystal. When the Al/Si ratio was above 10, the crystal contained a impurity of AFI-type SAPO-5. With an increase in Al/Si ratio, the Brosted acid sites on crystals decreased. From these results, catalytic performances under methanol conversion were distinguished, in consequence, the conversion and selectivity to ethylene were greatly increased with the catalyst having Al/Si ratio of 7.7 on catalyst with a Al/Si = 7.7.