The catalytical oxidation of propan-butane mixture on the hydrogen and hydrogen content compounds

B. K. Massalimova, K. A. Shoraeva, S. M. Nauruzkulova, G. D. Jetpisbayeva, D. T. Altynbekova, Zh E. Amanzhol, V. A. Sadykov

Результат исследования: Научные публикации в периодических изданияхстатья

Аннотация

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.

Язык оригиналаанглийский
Страницы (с-по)21-25
Число страниц5
ЖурналИзвестия Национальной академии наук Республики Казахстан. Серия химии и технологии
Номер выпуска2
DOI
СостояниеОпубликовано - 2019

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