Development of iron based oxidation catalysts for the after-treatment of diesel exhaust gases

用于柴油机废气后处理的铁基氧化催化剂的开发

• 批准号: 327500356
• 负责人: Professor Dr. Matthias Bauer
• 金额: --
• 依托单位: Umicore AG & Co. KG
• 依托单位国家: 德国
• 项目类别: Research Grants (Transfer Project)
• 财政年份: 2017
• 资助国家: 德国
• 起止时间: 2016-12-31 至 2020-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/327500356?language=en
• 关键词: Development; iron; based; oxidation; catalysts

The intended research addresses the targeted development of novel iron oxide catalysts for the oxidation of carbon monoxide and hydrocarbons in diesel exhaust. The technical aim is the substitution of the precious metals present in diesel oxidation catalysts, which suffer from increasing costs associated with limited natural abundance of the raw materials. The project is a joint cooperation of Prof. Kureti (Freiberg), Prof. Bauer (Paderborn) and Umicore company (Hanau).Based on results of previous research project of Prof. Kureti novel iron oxide catalysts with high load of highly active isolated iron oxo species are designed by following a knowledge-based approach. Promising catalysts are industrially up-scaled and evaluated under relevant test conditions at Umicore company. In addition to this transfer of knowledge from academic research to industrial development, the project also deals with the fundamentals of the oxidation of CO. This basic research implies the development of analytical tools for the detailed characterisation of isolated iron oxo sites with focus on synchroton-based methods, mechanistic and kinetic studies as well as elementary kinetic mean field modelling. These studies include a well-defined model catalyst with isolated iron oxo species as well as the best catalyst obtained from the development process. The kinetic model constructed aims to provide molecular insights into the CO oxidation and is also used for the design of the prototype catalyst produced and finally tested in real diesel exhaust by Umicore.

该研究旨在有针对性地开发新型氧化铁催化剂，用于氧化柴油机尾气中的一氧化碳和碳氢化合物。本发明的技术目的是替代柴油机氧化催化剂中存在的贵金属，所述贵金属的缺点是与原料的有限天然丰度相关的成本增加。该项目是Kureti教授（弗赖贝格）、Bauer教授（帕德博恩）和Umicore公司（哈瑙）的联合合作项目。基于Kureti教授以前的研究项目的结果，采用基于知识的方法设计了具有高活性孤立铁氧物种的高负载量的新型氧化铁催化剂。有前途的催化剂在优美科公司进行了工业放大，并在相关试验条件下进行了评价。除了从学术研究到工业发展的知识转移外，该项目还涉及CO氧化的基本原理。这项基础研究意味着开发分析工具，用于详细表征孤立的铁氧位点，重点是基于同步子的方法，机理和动力学研究以及基本动力学平均场建模。这些研究包括一个明确定义的模型催化剂与孤立的铁氧物种，以及最好的催化剂从开发过程中获得。所构建的动力学模型旨在为CO氧化提供分子见解，并且还用于由优美科生产并最终在真实的柴油机排气中测试的原型催化剂的设计。