Incineration of Fixed Nitrogen Compounds

本研究项目的主要目的是确定含氮有机化合物的氧化反应路径。将考察碳氢化合物热解和氧化产物对NO还原的影响。这些NO还原实验将在800-1000摄氏度的绝热流动反应器中进行，将使用纯有机氮化合物和这些化合物与碳氢化合物稀释，以产生按重量计含2-10%氮的燃料进料。流动反应器内的气体将使用水冷石英衬里采样探头在不同的轴向位置进行采样；这些样品将使用气相色谱仪和NO/NOx分析仪同时进行分析。对于喹啉、苯甲腈和氨基甲酸酯等复杂的氮化合物，将研究碳-氮键对NO形成的影响。将测量来自这些复杂氮化合物的氮中间体的分布。将使用碳氢化合物化学的准全球模型和氮化学的详细模型来分析数据以确定重要的反应路径。这项研究的一项重要成果将是评估焚烧高浓度氮化合物的可行性。化工、石油和制药行业的许多废气含有这种有机氮化合物，在环境安全处理方面提出了特别困难的问题。根据这些研究开发的反应模型将用于设计、分析和评估适当焚烧这类废气的程序。

The main goal of this research project is determination of reaction pathways for the oxidation of nitrogen-containing organic compounds. The effects of products of hydrocarbon pyrolysis and oxidation on the reduction of NO will be examined. These NO reduction experiments, to be carried out in an adiabatic flow reactor operating at 800-1000C, will be conducted with both pure organic nitrogen compounds and with these compounds diluted with hydrocarbons to yield a fuel feedstream with 2-10 percent nitrogen by weight. The gas within the flow reactor will be sampled at various axial locations using a water-cooled quartz-lined sampling probe; these samples will be analyzed simultaneously using a gas chromatograph and an NO/NOx analyzer. The effect of the carbon-nitrogen bond on formation of NO will be studied for complex nitrogen compounds such as quinoline, benzonitrile, and urethane. The distribution of nitrogen intermediates from these complex nitrogen compounds will be measured. The data will be analyzed to determine the significant reaction pathways using a quasi-global model of the hydrocarbon chemistry and a detailed model of the nitrogen chemistry. An important output of this study will be evaluation of the feasibility of incinerating high concentrations of nitrogen compounds. Many waste streams from the chemical, petroleum, and pharmaceutical industries contain such organic nitrogen compounds and present particularly difficult problems as regards environmentally safe disposal. Reaction models developed as a result of these studies will be used in design, analysis, and evaluation of procedures for proper incineration of such waste streams.