Research on Oxidation Kinetics of Carbon Black over PtPd/MnOx-Al2O3 Catalyst Surface
S. A. YASHNIK1 and Z. R. ISMAGILOV1,2
1Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
E-mail: yashnik@catalysis.ru
2Institute of Coal Chemistry and Material Science, Federal Research Centre of Coal and Coal Chemistry, Siberian Branch, Russian Academy of Sciences, Kemerovo, Russia
Keywords: carbon black, diesel engine exhaust, diesel oxidation catalyst, alumina-supported manganese catalyst
Abstract
Carbon black emissions together with diesel engine exhaust cause great harm to the environment. In order to efficiently remove carbon black, catalytically coated particulate filters are used. Kinetic parameters (activation energy and pre-exponential factor) of oxidation of carbon black with O2 and NOx were examined in thermoprogrammed and isothermal modes on an example of PtPd/MnOx-Al2O3 catalyst. As shown, reproducible kinetic data may be acquired in the isothermal mode assuming the process is carried out in the kinetically controlled region. This information is important to compare oxidizing properties of catalysts in order to improve compositions of catalytic coatings for particulate filters.
DOI: 10.15372/CSD20180613
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