Dehydrogenation of propane on promoted Pt catalysts supported on different alumina carriers

سال انتشار: 1386
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 1,678

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شناسه ملی سند علمی:

ICHEC05_439

تاریخ نمایه سازی: 7 بهمن 1386

چکیده مقاله:

Multimetallic Pt-Sn-K/Al2O3 catalyst samples were prepared by sequential impregnation of alumina supports. The θ-Al2O3 support was prepared by heat treatment of γ-Al2O3 sample. The supports were characterized by BET and XRD techniques and a high degree of transformation to θ-Al2O3 was observed. The catalyst samples were tested in a fixed-bed quartz reactor for propane dehydrogenation activity and propylene selectivity under representative industrial conditions. The influence of reaction temperature on catalytic performance was also checked within a range of 570-630 ºC. θ-alumina showed superior properties over γ-alumina as the support, that is; similar catalytic performance at lower loadings of Pt, and lower coke formation tendency were observed on θ-alumina supported catalysts. These were attributed to the less porous nature and lower acidity of θ-alumina compared to γ-alumina.

نویسندگان

Farnaz Tahriri Zangeneh

Catalyst Research Group, Petrochemical Research and Technology Company, National Petrochemical Company, Tehran, Iran

Elham Karimi

Catalyst Research Group, Petrochemical Research and Technology Company, National Petrochemical Company, Tehran, Iran

Saeed Sahebdelfar

Catalyst Research Group, Petrochemical Research and Technology Company, National Petrochemical Company, Tehran, Iran

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