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A study on the influence analysis of automotive catalyst performance by aging factors
이경민,김하나,이동철,김상우,차문순,여권구 한국공업화학회 2015 한국공업화학회 연구논문 초록집 Vol.2015 No.0
With the increasingly stringent regulation of exhaust emission, Automobile catalyst has to improve performance. Gasoline automotive catalyst is influenced by a number of factors, including extended exposure to high temperature with long time and poisoning from engine-oil. For these reasons Catalyst is deactivated. And that is also why deactivation factors should be studied for catalyst development. We evaluate catalyst performance based various factors of Palladium content which plays an important role in the purifying exhaust emissions, poisoning content, high temperature and aging time. We selected experimental parameters based on gasoline engine characteristics. This work demonstrates how a synthetic gas bench (SGB) can be used to simulate stoichiometric engine emissions and after treatment performance. And then it is expanding the application range using DFSS method. This conference, we want to introduce influence of catalytic behavior in using these factors.
김상우,이경민,김하나,이동철,차문순,여권구 한국공업화학회 2015 한국공업화학회 연구논문 초록집 Vol.2015 No.0
A three-way catalyst (TWC) has been utilized to convert harmful emissions into less harmful gases, especially hydrocarbons. And the conversion efficiency and light-off temperature of a catalytic converter is changed with various factors such as inlet temperature, catalyst volume, oxygen concentration, ceria loading amount and so on. Numerical code, 1D+1D, is run in order to predict the impact of those factors on light off of hydrocarbon emission during New European Driving cycle(NEDC), and the results are plotted using Matlab in three dimensions.
The effect of NiO on the performance of automotive catalysts: Evaluating H2S emission
김하나,이경민,이동철,김상우,차문순,여권구 한국공업화학회 2015 한국공업화학회 연구논문 초록집 Vol.2015 No.0
H2S emission performance of automotive catalyst is one of significant role of air purification catalytic system. NiO could reduce H2S emission by revisable trapping reaction. But, forming alloys with NiO and raw material which are active component in catalyst could bring serious purification performance drop. Hence, demand of optimized level of NiO amount on catalyst increased to establish efficient designing of catalyst. Different amount of NiO contents were induced to automotive catalysts. Various NiO induced automotive catalysts were characterized using comparison of Synthetic Gas bench test and Engine bench test, respectively. The influence of NiO content in automotive catalyst on the emission behavior of the engine bench was discussed.