Comprehensive Shock Tube Studies of Current Combustion Kinetics Problems Over Extreme Ranges of Pressure and Temperature

极端压力和温度范围内当前燃烧动力学问题的综合激波管研究

• 批准号: 9974308
• 负责人: Kenneth Brezinsky
• 金额: $ 16.5万
• 依托单位: University of Illinois at Chicago
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-09-01 至 2001-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9974308&HistoricalAwards=false
• 关键词: Comprehensive; Shock; Tube; Studies; Current

ABSTRACTBREZINSKY, KENNETHCTS-9974308This is a study of hydrocarbon chemistry related to soot formation. The approach is centered on single-pulse shock-tube studies in a high-pressure shock-tube facility designed to permit extraction of quenched reaction intermediates and products as functions of well-defined pressures, temperatures, and residence times. Extracted samples are analyzed with gas chromatography/mass specteometry (GC/MS). Additional studies are conducted in a low-pressure shock tube where the principal means of reaction diagnosis is the laser schlieren method of rate evaluation. Three systems are studied: (1) benzyne chemistry including in-situ pyrolysis of phthalic anhydride to produce benzyne and its subsequent pyrolysis to examine its role both as a decomposition pathway in aromatics chemistry and as a possible route to larger molecule formation through biphenylene; (2) diacetylene pyrolysis including shock-tube studies of dilute diacetylene/argon and dilute diacetylene/acetylene/argon mixtures to examine the mechanism of soot formation in the presence of diacetylene; and (3) reactions of 1,5-hexadiyne including shock-tube studies of 1,5-heaxdiyne to discriminate among alternate pathways to benzene.

这是一项与煤烟形成有关的碳氢化合物化学研究。 该方法是集中在单脉冲激波管的研究，在高压激波管设施，旨在允许淬火反应中间体和产品的功能定义明确的压力，温度和停留时间的提取。 采用气相色谱/质谱法（GC/MS）分析浸提样品。 附加的研究是在低压激波管中进行的，其中反应诊断的主要手段是速率评估的激光纹影法。 研究了三个系统：（1）苯炔化学，包括邻苯二甲酸酐的原位热解以产生苯炔及其随后的热解，以检查其作为芳烃化学中的分解途径和作为通过联苯形成更大分子的可能途径的作用;（2）丁二炔的热分解，包括稀丁二炔/氩和稀丁二炔/乙炔/氩气混合物，以检查在二乙炔存在下烟灰形成的机理;和（3）1，5-己二炔的反应，包括1，5-己二炔的激波管研究，以区分苯的替代途径。