Effect of K2O on a Pd-containing catalytic converter for removing CO and HC emissions from a two-stroke motorcycle

NCU Institutional Repository > 工學院 > 化學工程與材料工程研究所 > 期刊論文 > Item 987654321/26503

jsp.display-item.identifier=請使用永久網址來引用或連結此文件: http://ir.lib.ncu.edu.tw/handle/987654321/26503

题名:	Effect of K2O on a Pd-containing catalytic converter for removing CO and HC emissions from a two-stroke motorcycle
作者:	Lee,CH;Chen,YW
贡献者:	化學工程與材料工程學系
关键词:	EXHAUST
日期:	1998
上传时间:	2010-06-29 17:29:34 (UTC+8)
出版者:	中央大學
摘要:	Noble metals (Pt, Pd, and Ph) supported on Al2O3, K2O/Al2O3, CeO2/Al2O3, and K2O/CeO2/Al2O3 were prepared and characterized with respect to surface area, pore volume, and temperature-programmed desorption of CO2. The effects of K2O on the noble-metal catalysts for carbon monoxide and hydrocarbon oxidation were investigated. The reactions were carried out under the stoichiometric and oxygen-deficient conditions. Under the stoichiometric point, the Pd-containing catalysts exhibit higher activity than the Pt-containing catalysts for both CO and C3H6 oxidation. Moreover, Pd/K2O/CeO2/Al2O3 is the most active catalyst among the powder catalysts in this study. Under the oxygen-deficient conditions and in the presence of water, the CO conversions on Pd/Al2O3 and Pd/CeO2/Al2O3 are significantly lower than those on Pt/Al2O3 and Pt/CeO2/Al2O3, respectively. In contrast, the Pd-containing catalysts exhibit higher C3H6 conversion than the Pt-containing catalysts. However, the CO conversions on the Pd-containing catalysts can be promoted by the addition of K2O. On the other hand, the test results of the monolithic catalysts revealed that the CO conversion on PdRh/K2O/Al2O3-CeO2 is quite close to that on PtRh/Al2O3-CeO2 under the simulative gases and the ECE-40 mode driving cycle test. PtRh/Al2O3-CeO2 is the typical composition of catalytic converters for two-stroke motorcycles. It infers that PdRh/K2O/Al2O3-CeO2 is a promising catalytic converter for a two-stroke motorcycle.
關聯:	INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
显示于类别:	[化學工程與材料工程研究所] 期刊論文

文件中的档案:

档案	描述	大小	格式	浏览次数
index.html		0Kb	HTML	490	检视/开启

在NCUIR中所有的数据项都受到原著作权保护.

社群 sharing

数据加载中.....