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- W2334656803 abstract "再生可能な有機資源であるバイオマスの発酵によって得られるエタノール水溶液の有効利用を目的として,アルミナ担持コバルト触媒上でのエタノールの水蒸気改質反応,C2H5OH+H2O→2CO+4H2,における触媒の粒子径と触媒性質の関係について検討した.コバルト原料の異なるアルミナ担持コバルト触媒を調製し,常圧流通式反応装置を用いて定常反応実験,昇温反応実験(TPR)および昇温脱離測定(TPD)を行った.エタノールの水蒸気改質反応の活性序列は,Co(CVD)>Co(Chloride)>Co(Carbonyl)>Co(Acetate)>Co(Nitrate)となった.平均結晶子径は,コバルト原料によって変化し,Co(Carbonyl)を除いて反応選択率とは逆の序列となった.水蒸気共存下におけるCo(Nitrate)触媒に吸着したエタノールのTPDスペクトルについて,COxのピーク(主に二酸化炭素のピーク)は結晶子径が減少するにつれて高温側ヘシフトした.このことは,水蒸気改質反応の選択率が金属の高分散化により高くなることを示している.エタノールの水蒸気改質触媒に対する粒子径効果は,エタノールが転化したCOxの吸着状態およびCOのメタン化の反応活性と関係があることがわかった." @default.
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- W2334656803 date "1997-01-01" @default.
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- W2334656803 title "Effect of Particle Size on Steam Reforming of Ethanol over Alumina-Supported Cobalt Catalyst." @default.
- W2334656803 doi "https://doi.org/10.1246/nikkashi.1997.758" @default.
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