Production of Metallic Catalyst Converter

Subject Areas : environmental management

Morteza Amrouni Hoseini ¹ (Associate Professor, Material Engineering Research Center, Sapco, Tehran, Iran)
Mani Azadmand ² (Department of Ceramic, Science and Research Branch, Islamic Azad University, Tehran, Iran)
Kaveh Arzani ³ (Assistant professor, Department of Ceramic, Science and Research Branch, Islamic Azad University, Tehran, Iran.)

Received: 2009-01-30 Accepted : 2009-06-28 Published : 2014-05-22

Keywords: catalyst convertor, vehicle, Pollutant Emitted Gases, Monolith, Precious Metals,

Abstract :

In present research in order to reduce emitted pollutant gases from vehicles, design and production ofmetallic catalyst converter have been studied. The specimens are adjustable on different engines withdifferent capacity. For this purpose the following steps were carried out:The first step is preparation of α- 4 sheet consists of annealing, forming and making monolith. Thesecond step contains providing wash coat and catalyst metals and coating them on washed coatedmonolith. The last step is canning of catalyst converter. After accomplishing above steps, requiredtests have been done as below:Measurement of emitted pollutants from vehicles, stability of catalyst converter in vehicle (road test)and finally measurement of amount of fuel consumption of vehicles with different used catalystconverters in them.Results of these tests showed that emission of CO was equivalent with Euro3 standard and NOXemission was equivalent to Euro4 standard and NOX + HC emission was equivalent with Euro3standard.

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