Research Equipment Grant: Gas Chromatography/Spectrometer Instrumentation

购买带有质量选择检测器的气相色谱仪/质谱仪(GC/MS)时，将使用该设备。这将补充和加强化学工程部现有的分析能力，具体应用于氯化液体和固体燃料燃烧的研究，目的是了解包括二恶英和呋喃在内的中间产物的形成和破坏。具体目标是在喷动床和固定床反应器中获得多氯二苯并二恶英/多氯二苯并呋喃的动力学数据，以便更好地了解公认的形成机制；阐明温度停留时间、前体分压和颗粒大小对速率和产率的作用；对这些过程进行模拟；并确定需要更深入研究的步骤和参数。GC/MS将极大地提高对许多样品进行定量分析的能力。这反过来又增加了更好地了解与可能的前体的关系的可能性，并由此可以解决某些操作和设计参数对实际焚烧炉中不完全燃烧产物的作用。

A gas chromatograph/mass spectrometer (GC/MS) with a mass selective detector is to be purchased with this equipment grant. This will compliment and enhance existing analytical capabilities within the chemical engineering department, with specific applications to research on the combustion of chlorinated liquid and solid fuels aimed at gaining an understanding of the formation and destruction of intermediate products including dioxins and furans. The specific objectives are to acquire kinetic data on PCDD/PCDFs in spouted-bed and fixed-bed reactors in order to understand accepted formation mechanisms better; to elucidate the role of temperature residence time, precursor partial pressure, and particle size on rates and yields; to model these processes; and to identify the steps and parameters that require more intensive study. The GC/MS will greatly improve the ability to provide quantitative analyses of many samples. This in turn will enhance the likelihood that relationships to probable precursors can be better understood, and from that knowledge the role of certain operation and design parameters on products of incomplete combustion in actual incinerators can be addressed.