A Study on the Effectiveness of Remanufacturing Technology for the Diesel Oxidation Catalyst(DOC) Deactivated by Diesel Exhaust Gas 


Vol. 16,  No. 4, pp. 265-271, Dec.  2010


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  Abstract

The deactivated diesel oxidation catalyst(DOC) was remanufactured by ultrasonic wave treatment with various solutions, followed by active component re-impregnation. The catalytic performance and surface properties of remanufactured DOC were studied at various remanufacturing conditions. The proper ultrasonicwave cleaning time at various solutions and optimal re-impregnation amounts of active component for the best catalytic performance were investigated. The catalytic performance tests on the conversions of CO and TIIC(total hydrocarbon) were also carried out at various temperatures by catalytic reaction test unit using bypass gas from the diesel engine dynamo system. It was found that the catalytic performance of DOC remanufactured with the high-temperature air washing, ultrasonic wave cleaning at acidiclbasic solutions and active component re-impregnation method was recovered to 90% level of its activity compared to that of the fresh DOC, which was caused by removing the deactivating materials from the surface of the DOC through the analyses of catalyst performance test and their characterization by Optical microscope, EDX, ICP, TGA, and porosimeter.

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  Cite this article

[IEEE Style]

P. HK, "A Study on the Effectiveness of Remanufacturing Technology for the Diesel Oxidation Catalyst(DOC) Deactivated by Diesel Exhaust Gas," Clean Technology, vol. 16, no. 4, pp. 265-271, 2010. DOI: .

[ACM Style]

Park HK. 2010. A Study on the Effectiveness of Remanufacturing Technology for the Diesel Oxidation Catalyst(DOC) Deactivated by Diesel Exhaust Gas. Clean Technology, 16, 4, (2010), 265-271. DOI: .

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한국연구재단 등재학술지