期刊
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
卷 92, 期 9, 页码 1587-1596出版社
WILEY-BLACKWELL
DOI: 10.1002/cjce.22027
关键词
catalyst aging; mathematical modelling; microkinetic reaction mechanism; three-way catalyst (TWC)
资金
- Steinbeis GmbH with the associated Steinbeis Transfer Center Reactive Flow (STC)
The correlation between thermal aging effects of three-way catalysts (TWC) and their spatial temperature profiles and CO conversion was studied. The study is based on temperature profiles within fresh and aged catalysts, as well as CO concentrations at the outlet of the samples. The highest deactivation was always observed at the catalyst inlet area. The modelling approach with separated reaction mechanisms for palladium and rhodium used here assumes a direct correlation between the temperature profiles resulting from the exothermal chemical reactions and the catalytically active surface area. The noble metal dispersion is determined by low temperature CO chemisorption measurements. It is used in simulation as the relevant parameter for quantitative prediction of the catalyst performance.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据