Abstract: Oxidative conversion of the propane-butane mixture by air into oxygen-containing compositions was studied. It were determined the optimum reaction temperature, contact time, change in the space velocity in the process of partial oxidation of C3-C4 hydrocarbons. The physicochemical studies of the initial and treated catalysts were carried out under experimental conditions. When changing the content of the active component from 1 to 10% on the carrier, it was found that the most optimal is 1% MoCrGa/TC catalyst, on which up to 89.92% of hydrogen is obtained. As a result of varying the composition of the catalyst, the content of the active phase, the ratio of reactants, up to 70% of ethylene was obtained. In addition, in some cases, CH3OH was obtained, the maximum yield of which is 22%, and also up to 35% of methyl ethyl ketone. As a result of EM and XRD studies, it was shown that under reaction conditions, a new Cr2O5 phase is formed on the catalyst surface (corresponding to the Cr2+ and Cr3+ transition to Cr5+), as well as joint Mo phases with Cr in different valence states, the physical meaning and role of which are to be determined.

Cite: Massalimova B.K. , Shorayeva K.A. , Nauruzkulova S.M. , Jetpіsbayeva G.D. , Altynbekova D.T. , Amanzhol Z.E. , Sadykov V.A.
The Catalytical Oxidation of Propan-Butane Mixture on the Hydrogen and Hydrogen Соntent Compounds
Известия Национальной академии наук Республики Казахстан. Серия химии и технологии = News of the Academy of Sciences of the Republic of Kazakhstan, Series Chemistry and Technology. 2019. V.2. N434. P.21-25. DOI: 10.32014/2019.2518-1491.13 WOS РИНЦ ANCAN OpenAlex

Files: Full text from publisher

Dates:

Published print:	Apr 15, 2019
Published online:	Apr 20, 2019

Identifiers:

Web of science:	WOS:000465346600003
Elibrary:	44587901
Chemical Abstracts:	2019:1584031
Chemical Abstracts (print):	171:305798
OpenAlex:	W2937967680

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