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An experimental kinetic model for the oxidative coupling of methane using a bench‐scale reactor
Author(s) -
Yaghobi Nakisa,
Ghoreishy Mir Hamid Reza,
Eslamimanesh Vahid
Publication year - 2008
Publication title -
asia‐pacific journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.348
H-Index - 35
eISSN - 1932-2143
pISSN - 1932-2135
DOI - 10.1002/apj.116
Subject(s) - oxidative coupling of methane , methane , space velocity , kinetic energy , chemistry , catalysis , reaction rate , thermodynamics , oxygen , work (physics) , reaction mechanism , analytical chemistry (journal) , organic chemistry , physics , quantum mechanics , selectivity
The aim of this work is to develop a kinetic model for the oxidative coupling of methane (OCM) based on the gas‐hourly space velocity (GHSV) and methane‐to‐oxygen ratio. The experiments were carried out in a bench‐scale tubular‐fixed bed reactor, using 30 g of perovskite titanate as the reaction catalyst. Different GHSVs (3000–6000 h −1 ) and methane‐to‐oxygen ratios (2,2.5 and 3) were selected. A mechanism was assumed in which the consumption rate of methane is always twice the production rate of C 2 hydrocarbons. A power‐law model was assumed for rate of reaction in terms of partial pressure of oxygen and methane. Using a linear regression analysis, the kinetic model was determined. Comparison of the calculated rate of reaction with the experimentally measured data confirmed the accuracy and applicability of the developed model under various reaction conditions. Copyright © 2008 Curtin University of Technology and John Wiley & Sons, Ltd.