Experimental and Numerical Investigation of Ignition of Ammonia–Hydrocarbon Mixtures in Shock Tube Conditions

IF 1 4区化学 Q4 CHEMISTRY, PHYSICAL

Kinetics and Catalysis Pub Date : 2026-04-01 DOI:10.1134/S002315842560052X

A. V. Drakon, A. V. Eremin

引用次数: 0

Abstract

The article is devoted to the experimental measurement of ignition delay times of ammonia with additives of CH₄, C₂H₂, C₂H₄, and C₂H₆ behind shock waves and their comparison with the results of numerical simulation using modern kinetic models. A significant discrepancy between the predictions of kinetic mechanisms and the experimental data is demonstrated. The analysis of the sensitivity of the ignition delay time to the rate constants of individual reactions indicates the key role of insufficiently studied reactions of interaction of HO₂ and NH₂ radicals, as well as reactions involving N₂H_x compounds, in the ignition of ammonia at elevated temperatures.

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激波管条件下氨烃混合物点火的实验与数值研究

本文对激波后添加CH4、C2H2、C2H4和C2H6的氨的点火延迟时间进行了实验测量，并与现代动力学模型的数值模拟结果进行了比较。动力学机理的预测结果与实验数据存在显著差异。点火延迟时间对单个反应速率常数的敏感性分析表明，HO2和NH2自由基相互作用的反应以及涉及N2Hx化合物的反应在高温下氨的点火中起着关键作用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Kinetics and Catalysis 化学-物理化学

CiteScore

2.10

自引率

27.30%

发文量

审稿时长

6-12 weeks

期刊介绍： Kinetics and Catalysis Russian is a periodical that publishes theoretical and experimental works on homogeneous and heterogeneous kinetics and catalysis. Other topics include the mechanism and kinetics of noncatalytic processes in gaseous, liquid, and solid phases, quantum chemical calculations in kinetics and catalysis, methods of studying catalytic processes and catalysts, the chemistry of catalysts and adsorbent surfaces, the structure and physicochemical properties of catalysts, preparation and poisoning of catalysts, macrokinetics, and computer simulations in catalysis. The journal also publishes review articles on contemporary problems in kinetics and catalysis. The journal welcomes manuscripts from all countries in the English or Russian language.