M. Dj. Poghosyan, N. M. Poghosyan, S. D. Arsentev, L. N. Strekova, V. S. Arutyunov
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引用次数: 0
Abstract
It has been experimentally shown that during the oxidation of propane in a stabilized cool flame in the temperature range 330–410°C in mixtures of the composition C3H8 : O2 from 1 : 1 to 6 : 1, the phenomenon of a negative temperature coefficient of the reaction rate (NTC) is observed. As the propane concentration in the initial mixture increases, the NTC region gradually changes and becomes less pronounced. In a mixture of the composition C3H8 : O2 = 6 : 1, the process is practically independent of temperature, that is, a zero temperature coefficient (ZTC) of the reaction rate can be stated. In this area of the NTC, with increasing temperature, the concentration of the formed olefins—ethylene and propylene—increases, while the concentration of oxygen-containing products such as methyl alcohol, formaldehyde, acetaldehyde and others, on the contrary, decreases.
期刊介绍：
Russian Journal of Physical Chemistry B: Focus on Physics is a journal that publishes studies in the following areas: elementary physical and chemical processes; structure of chemical compounds, reactivity, effect of external field and environment on chemical transformations; molecular dynamics and molecular organization; dynamics and kinetics of photoand radiation-induced processes; mechanism of chemical reactions in gas and condensed phases and at interfaces; chain and thermal processes of ignition, combustion and detonation in gases, two-phase and condensed systems; shock waves; new physical methods of examining chemical reactions; and biological processes in chemical physics.
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