Rate-Sensitive Experimental Catalytic Combustion Studies in Multicomponent Gas Environments

多组分气体环境中的速率敏感实验催化燃烧研究

• 批准号: 9634922
• 负责人: Nick Glumac
• 金额: $ 18.08万
• 依托单位: Rutgers University New Brunswick
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-07-15 至 2000-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9634922&HistoricalAwards=false
• 关键词: Rate; Sensitive; Experimental; Catalytic; Combustion

Abstract 9634922 Glumac The goal of the proposed investigation is to generate a benchmark experimental data set of fully characterized catalytic flows in which comprehensive surface chemistry mechanisms for pure metal and alloyed catalysts can be refined and validated. The PI proposes to use a stagnation flow environment to create a multispecies post-flame catalytic flow field in which measurements can be made and compared with model predictions. Both a low pressure (~10-30 Torr) and a rotating substrate will be used to increase transport of gas phase species to the catalyst surface in order to achieve strong coupling to surface reactions. Laser induced fluorescence (LIF) will be used to obtain the spatial concentration profiles of a set of key reactive species including NO, CO, H, NO2, and OH. The pure metal unsupported catalysts platinum, palladium, and rhodium along with the alloyed and oxide supported catalysts will be investigated. This combination of measurements will assist modelers in formulating a mechanism valid for commonly-used multicomponent catalyst materials.

摘要 9634922 Glumac 这项研究的目标是生成完全表征的催化流的基准实验数据集，其中可以细化和验证纯金属和合金催化剂的综合表面化学机制。 PI 建议使用停滞流环境来创建多物种火焰后催化流场，在其中可以进行测量并与模型预测进行比较。 低压（~10-30托）和旋转基底将用于增加气相物质向催化剂表面的传输，以实现与表面反应的强耦合。 激光诱导荧光 (LIF) 将用于获取一组关键活性物质的空间浓度分布，包括 NO、CO、H、NO2 和 OH。 将研究纯金属无载体催化剂铂、钯和铑以及合金和氧化物载体催化剂。 这种测量组合将有助于建模者制定适用于常用多组分催化剂材料的机制。