Catalytic performance and characterization of cobalt-nickel nano catalysts for CO hydrogenation

A series of Co-Ni nano catalysts were prepared by co-precipitation method. We investigated the effect of Co/Ni molar ratios precipitate and calcination conditions on the catalytic performance of cobalt nickel catalysts for Fisher-Tropsch synthesis (FTS). The catalyst containing 90%Co/10%Ni was found...

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Bibliographic Details
Published in:The Korean journal of chemical engineering 2014, 31(1), 166, pp.37-44
Main Authors: Feyzi, Mostafa, Babakhanian, Arash, Gholivand, Mohammad Bagher
Format: Article
Language:English
Subjects:
Biotechnology
Catalysis
Chemistry
Chemistry and Materials Science
Industrial Chemistry/Chemical Engineering
Materials Science
Reaction Engineering
화학공학
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Summary:A series of Co-Ni nano catalysts were prepared by co-precipitation method. We investigated the effect of Co/Ni molar ratios precipitate and calcination conditions on the catalytic performance of cobalt nickel catalysts for Fisher-Tropsch synthesis (FTS). The catalyst containing 90%Co/10%Ni was found to be optimal for the conversion of synthesis gas to light olefins. The activity and selectivity of the optimal catalyst were studied in different operational conditions. The results show that the best operational conditions are the H 2 /CO=2/1 molar feed ratio at 310 °C and GHSV=1,200 h −1 under 5 bar of pressure. The prepared catalysts were characterized by powder X-ray diffraction (XRD), N2 adsorption-desorption measurements such as BET and BJH methods, transmission electron microscopy (TEM) and thermal gravimetric analysis (TGA).
ISSN:0256-1115
1975-7220
DOI:10.1007/s11814-013-0186-5