TY - JOUR
T1 - Associative adsorption kinetics
T2 - A novel kinetic model for the dehydrogenation of methylcyclohexane
AU - Akram, Muhammad Sarfraz
AU - Munir, Dureem
AU - Usman, Muhammad Rashid
N1 - Publisher Copyright:
© 2014, Science Reviews 2000 Ltd. All rights reserved.
PY - 2014
Y1 - 2014
N2 - Methylcyclohexane (MCH) dehydrogenation is an important reforming reaction and is considered as a model naphthene dehydrogenation reaction. An increase in the rate of this reaction with the addition of hydrogen at low pressures has been observed by various researchers in the field. This enhancement in rate is described, in the present study, using the concept of associative adsorption of MCH with hydrogen in Langmuir-Hinshelwood-Hougen-Watson single-site and dual-site surface reaction mechanisms. The various rate equations developed on these bases are tested against the experimental data of Usman over Pt/Al2O3 and the best-fit rate model is presented. An activation energy of 52.0 kJ mol-1 is obtained for the best-fit rate model.
AB - Methylcyclohexane (MCH) dehydrogenation is an important reforming reaction and is considered as a model naphthene dehydrogenation reaction. An increase in the rate of this reaction with the addition of hydrogen at low pressures has been observed by various researchers in the field. This enhancement in rate is described, in the present study, using the concept of associative adsorption of MCH with hydrogen in Langmuir-Hinshelwood-Hougen-Watson single-site and dual-site surface reaction mechanisms. The various rate equations developed on these bases are tested against the experimental data of Usman over Pt/Al2O3 and the best-fit rate model is presented. An activation energy of 52.0 kJ mol-1 is obtained for the best-fit rate model.
KW - Associative adsorption
KW - Dehydrogenation
KW - Langmuir-Hinshelwood-Hougen-Watson kinetics
KW - Methylcyclohexane
KW - Reforming
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U2 - 10.3184/146867814X14120122636502
DO - 10.3184/146867814X14120122636502
M3 - Article
AN - SCOPUS:84914819517
SN - 1468-6783
VL - 39
SP - 404
EP - 417
JO - Progress in Reaction Kinetics and Mechanism
JF - Progress in Reaction Kinetics and Mechanism
IS - 4
ER -