Wide-Temperature Range Chemical Kinetics Studies For Understanding The Role of Chromium in Waste Incineration

这个实验计划将浓缩铬物种与氧和氯的反应。将使用三个独特的设施：一个具有激光诱导荧光监测铬自由基的高温快速流动反应堆；一个高温常压光化学金属反应堆；以及一个与质谱仪相连的低压流动反应堆。就像过去关于铝反应的工作一样，结果的基本方面将得到应有的关注。研究的温度范围为900~1900K，压力为10~(-2)~1.0bar。焚烧过程中金属化合物的形成，无论是作为颗粒物还是气体排放物，已被确定为一个重要的经济和健康问题。人们对焚烧炉中这些物种的形成和消失所涉及的过程知之甚少。建议的程序将提供感兴趣的基本气相反应的精确速率系数和机理数据。

This experimental program will concentrate or reactions of chromium species with oxygen and chlorine. Three unique facilities will be used: a high temperature, fast flow reactor with laser-induced fluorescence monitoring of the Cr radicals; a high temperature, atmospheric pressure, photochemistry metal reactor; and a low pressure flow reactor coupled to a mass spectrometer. Like the past work on aluminum reactions, due attention will be paid to the fundamental aspects of the results. The temperature range to be investigated is 900 to 1900 K, with pressures form 10-2 to 1.0 bar. The formation of metal compounds in incineration, whether as particulates or gaseous emissions, has been identified as an important economic and health problem. Little is known about the process involved in the formation and disappearance of such species in incinerators. The proposed program will provide accurate rate coefficient and mechanistic data on elementary gas-phase reactions of interest.