سال انتشار: ۱۳۸۶

محل انتشار: پانزدهمین همایش انجمن بلورشناسی و کانی شناسی ایران

تعداد صفحات: ۶

نویسنده(ها):

Ali Akbar Mirzaei – Department of Chemistry, Faculty of Sciences, Sistan & Baluchestan University
Mostafa Feyzi – Department of Chemistry, Faculty of Sciences, Sistan & Baluchestan University
Flora Shayegh – Research Institute of Petroleum Industry (RIPI) Gas Division, Tehran, Iran
Hmid Reza Bozorgzadeh – Research Institute of Petroleum Industry (RIPI) Gas Division, Tehran, Iran

چکیده:

Mixed crystalline cobalt manganese oxides were prepared using co-precipitationprocedure and studied for the conversion of CO/H2 to light olefins. In particular, theeffect of a range of preparation variables such as [Co]/[Mn] molar ratios of theprecipitation solution, precipitate aging time, were investigated in detail. The resultsare interpreted in terms of the structure of the active crystalline catalyst and it hasbeen generally concluded that the catalyst containing [Co]/[Mn]=1/6 molar basis andaged for 30min the is optimum catalyst. Characterization crystalline catalysts bypowder X-ray diffraction, scanning electron microscopy (SEM), BET specific surfacearea and thermal analysis methods such as TGA and DSC showed that all the molarratios of and [Co]/[Mn]=1/6 and aging time influenced the crystalline structure and.morphology