...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Catalysts >High-Throughput Screening as a Supplemental Tool for the Development of Advanced Emission Control Catalysts: Methodological Approaches and Data Processing
【24h】

High-Throughput Screening as a Supplemental Tool for the Development of Advanced Emission Control Catalysts: Methodological Approaches and Data Processing

机译：高通量筛选作为开发先进排放控制催化剂的补充工具：方法论方法和数据处理

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A high-throughput (HT) screening platform developed at hte with the application focus on automotive catalysis is described. hte HT units are configured for performing steady-state testing, as well as dynamic tests with fast feed switches, such as lean/rich excursions for the evaluation of NO x storage capacity and efficiency of lean NO x traps (LNT), ammonia storage capacity for selective catalytic reduction (SCR), evaluation of oxygen storage capacity (OSC), as well as lambda sweep tests for screening of three-way catalysts (TWC). Even though catalysts are screened on a rather small scale (~100 mg powder), experience showed that dosing rather complex gas mixtures in concentrations close to that found in real exhaust for the given application is mandatory to generate relevant data. The objective of this work is to give additional insight into HT technology. In the industrial research laboratory, HT screening has matured to become a reliable approach for rapid screening of both reaction parameter spaces, as well as material properties relevant for exhaust gas catalyst development. Due to the speed of optimized screening involving 48 parallel reactors, automated handling of primary data is an imported requirement. Software for data reduction, like estimation of light-off temperature, needs to be robust and handle results for diverse sample libraries in an unattended fashion. In combination with the statistical design of experiment and multivariate data analysis, HT testing has become a valuable enhancement to automotive catalyst development.
机译：描述了在hte开发的以汽车催化为重点的高通量（HT）筛选平台。 HT单元配置用于执行稳态测试以及带有快速进料开关的动态测试，例如用于评估NOx储存能力和稀薄NOx捕集阱（LNT）效率，氨气储存能力的稀/富比偏移用于选择性催化还原（SCR），储氧量（OSC）评估以及用于筛选三效催化剂（TWC）的拉姆达扫描测试。即使对催化剂进行了较小规模的筛选（约100 mg粉末），经验表明，对于给定的应用，添加浓度与实际排气中所发现浓度接近的复杂气体混合物对于生成相关数据是强制性的。这项工作的目的是对HT技术有更多的了解。在工业研究实验室中，HT筛选已经成熟，已成为快速筛选反应参数空间以及与废气催化剂开发相关的材料特性的可靠方法。由于涉及48个并联反应器的优化筛选速度很快，因此必须自动处理主要数据。像起燃温度估算之类的用于数据缩减的软件需要功能强大并且能够以无人值守的方式处理各种样品库的结果。与实验的统计设计和多变量数据分析相结合，HT测试已成为汽车催化剂开发的宝贵改进。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号