화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.18, No.4, 1242-1251, July, 2012
DOI10.1016/j.jiec.2012.01.003  Export Citation
Kinetic study of CO hydrogenation over co-precipitated iron-nickel catalyst
Ali A. Mirzaei†, Rouhoullah M. Kiai, Hossein Atashi1, Maryam Arsalanfar, and Sara Shahriari
  • Department of Chemistry, Faculty of Sciences, University of Sistan and Baluchestan, Zahedan 98135-674, Iran
  • 1Department of Chemical Engineering, Faculty of Engineering, University of Sistan and Baluchestan, Zahedan 98167-161, Iran
E-mail:
The kinetic of the Fischer.Tropsch synthesis over a Fe-Ni/Al2O3 catalyst was investigated in a fixed bed micro reactor. Experimental conditions were varied as follow: reaction pressure 2-10 bar, H2/CO feed ratio of 2/1 and space velocity of 96-450 cm3(STP)/h/gramcatalyst at the temperature range 523-573 K. On the basis of carbide-enol mechanism and Langmuir-Hinshelwood-Hougen-Watson (LHHW) type rate equations, seventeen kinetic expressions for CO consumption were tested and interaction between adsorption HCO and dissociated adsorption hydrogen as the controlling step gave the most plausible kinetic model. The activation energy was 46.5 kJ/mole for optimal kinetic model.
Keywords:Co-precipitated;Iron-nickel;CO hydrogenation;Kinetic model;Fischer-Tropsch synthesis
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