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Optimization of TWC Design for Various Engine Operation Conditions
Technical Paper
2019-01-1290
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Three-way catalysts (TWCs) for gasoline-powered vehicles commonly contain Pt group metals (Pt, Pd, and Rh) as active components and Al2O3 or OSC as supports, with Pd and Rh being most frequently employed in view of their high thermal durability. Hybrid electric vehicles (HEVs) have been recently developed to meet strict fuel efficiency regulations, by using feature engines that are much more energy-efficient than those of conventional gasoline vehicles and lend themselves to fixed-point operation control. Therefore, the engine exhaust-induced stress experienced by TWCs in HEVs and the corresponding aging conditions are expected to differ from those in conventional vehicles, which, in turn, should be reflected by a change in the optimal catalyst design. Herein, to facilitate the design of optimum next-generation TWCs, we investigate the deterioration of these catalysts (Pt, Pd, Rh supported on Al2O3 or OSC) under various conditions reflecting different engine operation modes. The results shown that Pt catalysts are inferior to Rh and Pd catalysts after conventional high-temperature aging, while Pt/OSC outperforms Pd/OSC under low-temperature aging conditions. Thus, this work is expected to aid the design of TWCs for various engine operating conditions.
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Toya, Y., Nakayama, H., Hara, H., and Nagata, M., "Optimization of TWC Design for Various Engine Operation Conditions," SAE Technical Paper 2019-01-1290, 2019, https://doi.org/10.4271/2019-01-1290.Data Sets - Support Documents
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References
- FUJI KEIZAI Co., Ltd 2017 https://www.fuji-keizai.co.jp/market/17059.html
- International Energy Agency Energy Technology Perspectives 2012: Pathways to a Clean Energy System OECD Publishing 10.1787/energy_tech-2012-en
- Baran , R. and Legey , L.F.L. The Introduction of Electric Vehicles in Brazil: Impacts on Oil and Electricity Consumption Technol. Forecast. Soc. 80 907 917 2013 10.1016/j.techfore.2012.10.024
- Silva Smart Grids and Electric Vehicles - Experiences in Portugal 2012 http://www.osetoreletrico.com.br/web/documen-tos/fasciculos/Ed75_fasc_smartgrid_cap11.pdf
- Hannan , M.A. , Azidin , F.A. , and Mohamed , A. Hybrid Electric Vehicles and Their Challenges: A Review Renewable and Sustainable Energy Reviews 29 135 150 2014 10.1016/j.rser.2013.08.097
- Kimura , M. , Kazama , I. , Kawai , K. , Mukai , Y. et al. Development of New-Generation e-POWER Hybrid Powertrain NISSAN Tech Rev 80 3 2017
- Wang , Y. , Wang , X. , Sun , Y. , and You , S. Model Predictive Control Strategy for Energy Optimization of Series-Parallel Hybrid Electric Vehicle J Cleaner Prod 199 348 358 2018 10.1016/j.jclepro.2018.07.191
- Gandhi , H.S. , Graham , G.W. , and McCabe , R.W. Automotive Exhaust Catalysis J Catalysis 216 433 442 2003 10.1016/S0021-9517(02)00067-2
- Kang , S.B. , Nam , I. , Cho , B.K. , Oh , S.H. et al. Kinetic Model for Modern Double-Layered Pd/Rh TWC as a Function of Metal Loadings and Mileage Chem Eng J 278 328 338 2015 10.1016/j.cej.2014.12.106
- Nakano , T. , Kinoshita , M. , Nagai , R. , and Fukutomi , S. The Study on Evaluation Method of the Three-Way Catalyst Which Reproduces a Market Faithfully JSAE 93-16S 2308 2016
- Tauster , S.J. , Fung , S.C. , and Garten , R.L. Strong-Metal-Support Interaction Group 8 Noble Metals Supported on TiO 2 J. Amer. Chem. Soc. 100 1 170 1978
- Tingting , Z. , Junjun , H. , Yunkun , Z. , Wenzheng , X. , and Jieli , H. Precious Metal-Support Interaction in Automotive Exhaust Catalysts J Rare Earth 32 2 97 2014
- Farmer , J.A. and Campbell , C.T. Ceria Maintains Smaller Metal Catalyst Particles by Strong Metal-Support Bonding Science 329 5994 933 2010
- Hirofumi S. , Miho H. , Yasutaka N. et al. Suppression of Noble Metal Sintering Based on the Support Anchoring Effect and Its Application