MACROKINETIC COHERENCE OF GAS - PHASE ETHYLENE MONOOXIDATION REACTION BY HYDROGEN PEROXIDE
Journal: International Journal of Engineering Sciences & Research Technology (IJESRT) (Vol.5, No. 12)Publication Date: 2016-12-30
Authors : U. V. Mammadova; I. T. Nagieva; L. M. Gasanova; T. M. Nagiev;
Page : 185-193
Keywords : biomimetic; oxidation; ethylene; kinetic model; hydrogen peroxide; alumina .;
Abstract
The gas - phase monooxidation of ethylene by hydrogen peroxide on a biomimetic heterogeneous catalyst, perfluorinated iron (III) tetraphenylporphyrin, deposited on alumina (per - FTPhPFe3+OH/Al2O3)was studied under comparatively mild conditions. The biomimetic oxidation of ethylene with hydrogen peroxide was sh own to be coherently synchronized with the decomposition of H2O2. Depending on reaction medium conditions, one of two desired products was formed, either ethanol or acetaldehyde. The probable mechanism of ethylene transformation was studied. A kinetic mod el that fits the experimental data is studied on the basis of the most probable mech - anism of ethylene oxidation by hydrogen peroxide over a biomimetic catalyst (per - FTPhPFe3+OH/Al2O3). Effective rate constants for the catalase and monooxygenase reactions and their effective activation energies are found.
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Last modified: 2016-12-06 21:27:30