The Canadian Journal of Chemical Engineering · 1999 · 10 citations · 7 references
Natural SciencesChemical EngineeringChemistryCatalysisReaction EngineeringSurface ScienceCatalyst SynthesisCatalytic MaterialsCatalytic Reaction EngineeringCatalytic Reaction KineticsChemical Kinetics ModelingKinetic ModelingAdsorption EquilibriumEley-rideal KineticsEquilibriumMechanistic Kinetic ModelingReaction Engineering Of Catalytic ReactorsReaction Rate Coefficients
Abstract MTBE synthesis, from methanol and iso‐butylene, is studied in a novel Riser Simulator using a ZSM‐5 catalyst. Conditions selected for the operation of the Riser Simulator unit are as follows: 1‐5 catalyst/reactant ratios, 80 to 160°C temperatures, 1.09 methanol/iso‐butylene mol ratio, 25 to 34 kPa methanol partial pressures and 10 to 120 s reaction times. Injection of methanol, with enough time for the methanol to reach adsorption equilibrium, followed by an isobuty‐lene injection is found to be the best operating mode to achieve 100% iso‐butylene selectivity toward MTBE with 4 to 6.8% isobutylene conversions. With the gathered experimental data, a reaction rate model based on the Rideal‐Eley kinetic model is successfully developed.
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