شماره ركورد كنفرانس :
4518
عنوان مقاله :
Kinetics of CO hydrogenation over impregnated cobalt–alumina
Author/Authors :
Mohsen Mansouri Department of Chemical Engineering - University of Sistan & Baluchestan, Zahedan , Hossein Atashi Department of Chemical Engineering - University of Sistan & Baluchestan, Zahedan , Ali Akbar Mirzaei Department of Chemistry - University of Sistan & Baluchestan, Zahedan , Ghobad Mansouri Department of Chemistry - Islamic Azad University (branch of kermanshah), Kermanshah , Hossein Hosseini Department of Chemical Engineering - University of Ilam, Ilam
كليدواژه :
Fischer–Tropsch Synthesis , Fixed-bed Reactor , Kinetic Modeling
عنوان كنفرانس :
The 7th International Chemical Engineering Congress & Exhibition (IChEC 2011
چكيده لاتين :
The optimal amount of 15wt.%Co/10wt.%K/Al2O3 catalyst was prepared using the impregnation technique in order to study its kinetics of the Fischer–Tropsch synthesis. The rate of synthesis was measured in a fixed-bed micro reactor at 210-240ºC, reactor pressure of 8 bar, H2/CO feed ratio of 1-3, and space velocity in the range 2700–5200 h-1. The data were best fitted by a Langmuir–Hinshelwood– Hougen–Watson (LHHW) approach rate in the form of CO
CO H CO K P
k K P P
r
1
2 1
1 +
− = 2 . Furthermore, the
data were fitted fairly well by a power law equation in the form of
1.32 1.42
CO CO H2 − r = k P P . The
activation energies for LHHW approach model and power law equation were obtained 138.5 kJ/mol
and 87.39 kJ/mol, respectively.
