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Kinetic study of oxidative coupling of methane over Mn and/or W promoted Na_2SO_4/SiO_2 catalysts |
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| Authors: | M.Ghiasi A.Malekzadeh S.Hoseini Y.Mortazavi A.Khodadadi A.Talebizadeh .School of Chemistry Damghan University P.O.Box / Damghan I.R.Iran .School of Chemical Engineering Ferdowsi University of Mashhad P.O.Box / Mashhad .School of Chemical Engineering University of Tehran P.O.Box / Tehran |
| Affiliation: | M.Ghiasi1,A.Malekzadeh1,S.Hoseini2,Y.Mortazavi3,A.Khodadadi3,A.Talebizadeh3 1.School of Chemistry,Damghan University,P.O.Box 36715/364,Damghan,I.R.Iran,2.School of Chemical Engineering,Ferdowsi University of Mashhad,P.O.Box 91775/1111,Mashhad,3.School of Chemical Engineering,University of Tehran,P.O.Box 11365/4563,Tehran |
| Abstract: | A comprehensive kinetic model for oxidative coupling of methane(OCM)over Mn and/or W promoted Na2SO4/SiO2 catalysts was developed based on a micro-catalytic reactor data.The methane conversion and ethylene,ethane,carbon monoxide and carbon dioxide selectivities were obtained in a wide operating condition range of 750 - 825-C,CH4/O2=2.5 - 10 and contact time=267 - 472 kg s m-3.Reaction networks of six models with different rate equation types were compared together.The kinetic rate parameters of each reactio... |
| Keywords: | oxidative coupling of methane(OCM) kinetic modelling genetic algorithm fixed-bed reactor |
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