温度对富丙烷-氧混合物冷焰氧化的影响

IF 1.4 4区 化学 Q4 PHYSICS, ATOMIC, MOLECULAR & CHEMICAL
M. Dj. Poghosyan, N. M. Poghosyan, S. D. Arsentev, L. N. Strekova, V. S. Arutyunov
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引用次数: 0

摘要

实验表明,在330 ~ 410℃的稳定低温火焰中,丙烷在C3H8: O2 1:1 ~ 6:1的混合物中氧化时,反应速率(NTC)的温度系数为负。随着初始混合物中丙烷浓度的增加,NTC区逐渐发生变化,变得不那么明显。在C3H8: O2 = 6:1的混合物中,反应过程几乎与温度无关,即可以表示反应速率的零温度系数(ZTC)。在NTC的这一区域,随着温度的升高,形成的烯烃——乙烯和丙烯的浓度增加,而含氧产物如甲醇、甲醛、乙醛等的浓度相反地降低。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

The Effect of Temperature on the Cool-Flame Oxidation of Rich Propane-Oxygen Mixtures

The Effect of Temperature on the Cool-Flame Oxidation of Rich Propane-Oxygen Mixtures

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.

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来源期刊
Russian Journal of Physical Chemistry B
Russian Journal of Physical Chemistry B 化学-物理:原子、分子和化学物理
CiteScore
2.20
自引率
71.40%
发文量
106
审稿时长
4-8 weeks
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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