TY - CONF
T1 - Research on numerical analysis code of oxidation behavior of hydrocarbon on diesel oxidation catalyst
AU - Uenishi, Toru
AU - Shigeno, Genki
AU - Shigeno, Goki
AU - Fukuma, Takao
AU - Kusaka, Jin
AU - Daisho, Yasuhiro
N1 - Funding Information:
This paper is the result of the research project sponsored by the Research Association of Automotive Internal Combustion Engines (AICE) including the subsidy from the Ministry of Economy, Trade and Industry (METI) through the project expense of R&D for the advancement of the clean diesel engine technology granted for fiscal year 2016. The authors gratefully acknowledge the concerned personnel.
Publisher Copyright:
Copyright © 2017 by the Japan Society of Mechanical Engineers.
PY - 2017
Y1 - 2017
N2 - A Hydrocarbon is supplied to a diesel oxidation catalyst installed in an upstream of the diesel particulate filter for burning particulate matter deposited on the diesel particulate filter. In this study, we developed a thermal fluid numerical computation fluid dynamics code including a chemical reaction rate model which shows the influence of a hydrocarbon concentration and a type on the oxidation reaction of a hydrocarbon on a diesel oxidation catalyst. First, oxidation characteristics of four types of hydrocarbon fuels (Decane, Hexadecane, Eicosane, and 1-Methylnaphthalene) were investigated using a straight flow substrate carrying a platinum palladium catalyst. 1-methylnaphthalene greatly deteriorated the oxidizing ability, but there was no significant difference in the three kinds of alkane fuels. The difference of these oxidation characteristics could be reproduced by constructing a sub model expressing the difference between the adsorption characteristics of each hydrocarbon fuel and the oxidation inhibition effect due to adsorption. Further, the oxidation characteristics of the zeolite-containing catalyst were evaluated. As a result of the evaluation, the oxidation characteristics of the decane of the linear hydrocarbon did not change when compared with the catalyst which did not contain the zeolite, but the oxidation characteristics of the aromatic hydrocarbon 1-methylnaphthalene deteriorated. It was assumed that the zeolite had high adsorption capacity of 1-methylnaphthalene and a further inhibition of a reaction by adsorption was accelerated.
AB - A Hydrocarbon is supplied to a diesel oxidation catalyst installed in an upstream of the diesel particulate filter for burning particulate matter deposited on the diesel particulate filter. In this study, we developed a thermal fluid numerical computation fluid dynamics code including a chemical reaction rate model which shows the influence of a hydrocarbon concentration and a type on the oxidation reaction of a hydrocarbon on a diesel oxidation catalyst. First, oxidation characteristics of four types of hydrocarbon fuels (Decane, Hexadecane, Eicosane, and 1-Methylnaphthalene) were investigated using a straight flow substrate carrying a platinum palladium catalyst. 1-methylnaphthalene greatly deteriorated the oxidizing ability, but there was no significant difference in the three kinds of alkane fuels. The difference of these oxidation characteristics could be reproduced by constructing a sub model expressing the difference between the adsorption characteristics of each hydrocarbon fuel and the oxidation inhibition effect due to adsorption. Further, the oxidation characteristics of the zeolite-containing catalyst were evaluated. As a result of the evaluation, the oxidation characteristics of the decane of the linear hydrocarbon did not change when compared with the catalyst which did not contain the zeolite, but the oxidation characteristics of the aromatic hydrocarbon 1-methylnaphthalene deteriorated. It was assumed that the zeolite had high adsorption capacity of 1-methylnaphthalene and a further inhibition of a reaction by adsorption was accelerated.
KW - Adsorption
KW - DOC
KW - HC
KW - Inhibition
KW - Modeling
KW - Oxidation
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U2 - 10.1299/jmsesdm.2017.9.a312
DO - 10.1299/jmsesdm.2017.9.a312
M3 - Paper
AN - SCOPUS:85088759497
T2 - 9th International Conference on Modeling and Diagnostics for Advanved Engine Systems, COMODIA 2017
Y2 - 25 July 2017 through 28 July 2017
ER -