直接煤液化衍生喷气燃料及其与传统 RP-3 喷气燃料混合物的单脉冲冲击管实验和动力学建模研究,ACS Omega

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直接煤液化衍生喷气燃料及其与传统 RP-3 喷气燃料混合物的单脉冲冲击管实验和动力学建模研究
ACS Omega ( IF 3.7 ) Pub Date : 2021-07-06 , DOI: 10.1021/acsomega.1c02530
Bi-Yao Wang ₁ , Ping Zeng ₁ , Ruining He ₂ , Fei Li ₂ , Zhi-Yuan Yang ₁ , Zu-Xi Xia ₁ , Jinhu Liang ₂ , Quan-De Wang ₃

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对喷气燃料高温热解过程的基本了解不仅对开发燃烧动力学模型很有价值，而且对先进航空发动机的设计也至关重要。替代喷气燃料的开发和利用在军用和民用航空领域都具有至关重要的意义。直接煤液化 (DCL) 衍生的液体燃料是一种重要的替代喷气燃料，但缺乏对此类喷气燃料的基本热解研究。在目前的工作中，使用单脉冲激波管 (SPST) 设施对 DCL 衍生的喷气燃料及其与传统 RP-3 喷气燃料的混合物进行了高温热解研究。SPST 实验是在 5.0 和 10.0 bar 的平均压力下在 900-1800 K 左右的温度范围内进行的，其中 0.05% 燃料被氩气稀释。使用气相色谱分析获得和定量主要中间体。火焰离子化检测器和热导检测器用于物种鉴定和定量。乙烯是两种燃料在热解过程中含量最多的产物。其他重要的中间体，如甲烷、乙烷、丙炔、乙炔和 1,3-丁二烯也被识别和量化。还进行了纯 RP-3 喷气燃料的热解产物分布。动力学建模是通过对 DCL 衍生的喷气燃料及其与 RP-3 喷气燃料的混合物使用现代详细机制进行的。进行产率分析和敏感性分析，以比较两种喷气燃料热解过程化学动力学的差异。

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Single-Pulse Shock Tube Experimental and Kinetic Modeling Study on Pyrolysis of a Direct Coal Liquefaction-Derived Jet Fuel and Its Blends with the Traditional RP-3 Jet Fuel

A basic understanding of the high-temperature pyrolysis process of jet fuels is not only valuable for the development of combustion kinetic models but also critical to the design of advanced aeroengines. The development and utilization of alternative jet fuels are of crucial importance in both military and civil aviation. A direct coal liquefaction (DCL) derived liquid fuel is an important alternative jet fuel, yet fundamental pyrolysis studies on this category of jet fuels are lacking. In the present work, high-temperature pyrolysis studies on a DCL-derived jet fuel and its blend with the traditional RP-3 jet fuel are carried out by using a single-pulse shock tube (SPST) facility. The SPST experiments are performed at averaged pressures of 5.0 and 10.0 bar in the temperature range around 900–1800 K for 0.05% fuel diluted by argon. Major intermediates are obtained and quantified using gas chromatography analysis. A flame-ionization detector and a thermal conductivity detector are used for species identification and quantification. Ethylene is the most abundant product for the two fuels in the pyrolysis process. Other important intermediates such as methane, ethane, propyne, acetylene, and 1,3-butadiene are also identified and quantified. The pyrolysis product distributions of the pure RP-3 jet fuel are also performed. Kinetic modeling is performed by using a modern detailed mechanism for the DCL-derived jet fuel and its blends with the RP-3 jet fuel. Rate-of-production analysis and sensitivity analysis are conducted to compare the differences of the chemical kinetics of the pyrolysis process of the two jet fuels. The present work is not only valuable for the validation and development of detailed combustion mechanisms for alternative jet fuels but also improves our understanding of the pyrolysis characteristics of alternative jet fuels.

更新日期：2021-07-20

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