ISSN 0005-2531 (Print) ISSN 2522-1841 (Online)
EFFECT OF THE COMPOSITION OF A MANGANESE-CONTAINING POLYMER CATALYST ON THE KINETICS OF THE OXIDATION REACTION OF N-HEPTANE WITH MOLECULAR OXYGEN
A.F.Isazade, U.A.Mammadova, M.M.Asadov, N.A.Zeynalov, D.B.Tagiev, S.A.Mammadova

Catalysts with manganese nanoparticles (5 and 10 wt %) immobilized on poly-4-vinylpyridine were prepared. When interacting with molecular oxygen, the catalyst forms active oxygen, which is involved in the low-temperature oxidation of n-heptane. These catalyst compositions have been used to oxidize n-heptane with pure oxygen to give alcohols, aldehydes and ketones. Oxidation of n-heptane was carried out in the temperature range 303-383 K, molar ratios of heptane:oxygen = 1:3.38, and at atmospheric pressure. It has been found that the non-crosslinked (MnP4VP polymer poly-4-vinylpyridine) and N,N¢-methylene-bis-acrylamide-crosslinked MnP4VP/MBAA metal-polymer catalyst containing 5 wt % Mn2+ exhibits the highest activity in n-heptane oxidation reactions. The kinetic parameters of the reaction of n-heptane oxidation with oxygen at low temperatures were studied using a kinetic model based on the heptane conversion data. The kinetic model was compiled on the basis of experimental data: heptane:oxygen = 1:3.38 at atmospheric pressure using Mn (wt. 5%) P4VP/MBAA in the temperature range 303-383 K. Within the framework of the chosen kinetic model effective rate constants of the oxidation reaction with the formation of alcohols was calculated

doi.org/10.32737/0005-2531-2022-1-41-50

Keywords : polymer catalysts, manganese immobilization, low-temperature oxidation of n-heptane with oxygen, n-heptane conversion, reaction rate constants
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SUBMITION
THE LAST NUMBER OF THE JOURNAL
№2 2022
CONTENT
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