A Study on the Remanufacturing of the Waste Three-way Catalysts 


Vol. 15,  No. 3, pp. 147-153, Sep.  2009


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  Abstract

Waste three-way catalysts were remanufactured by ultrasonic wave treatment followed by active component re-impregnation and the catalytic activities and surface properties of remanufactured catalysts were measured at various remanufacturing conditions. In case of the catalyst prepared by ultrasonic wave cleaning, the optimal period for elimination of surface contaminants from the waste catalyst was found to be about 5 minutes. The proper re-impregnation amounts of the active components for the best catalytic performance were investigated and the catalytic performance tests were also carried out with various temperature for the total hydrocarbon (THC), carbon monoxide (CO) and nitrogen oxides (NOx) conversions. The experimental results showed that the catalytic performances of the remanufactured catalysts were recovered almost the same level as those of the fresh catalyst except those of the NOx conversion .

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  Cite this article

[IEEE Style]

H. B, P. HK, L. CH, "A Study on the Remanufacturing of the Waste Three-way Catalysts," Clean Technology, vol. 15, no. 3, pp. 147-153, 2009. DOI: .

[ACM Style]

Huh B, Park HK, and Lee CH. 2009. A Study on the Remanufacturing of the Waste Three-way Catalysts. Clean Technology, 15, 3, (2009), 147-153. DOI: .

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pISSN : 1598 - 9712
eISSN : 2288 - 0690

한국연구재단 등재학술지