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Fuel and Lubricant Effect on Durability of Catalytic Trap Oxidizer (CTO) for Heavy Duty Diesel Engines
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1988 by SAE International in United States
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Various CTOs have been tested at inlet gas temperature of 600°C, nearly muximum output operation on Bench Engine Dynamometer Unit with 2.8 - 6.6 liter D.I. engine.
Base metals promoted CTO are found to be deteriorated unexpectedly through the test conditions mentioned above. On the other hand, noble metal promoted CTO showed good durability against such full load operation condition. The problem arised from noble metal promoted CTO is evolution of sulfur trioxide at much higher concentration than from base metals promoted CTO. It is concluded that sulfur content in diesel fuel should be reduced as low as possible, such as to current gasoline level to use noble metal promoted CTO.
Tow types of particulate trap structure, wall-flow monolith (WFM) and ceramic foam have been evaluated. These carriers have trapped ashes from lubricating oil in a comparable efficiency to their particulate trap efficiency.
CitationSaito, K., Ikeda, Y., and Ichihara, S., "Fuel and Lubricant Effect on Durability of Catalytic Trap Oxidizer (CTO) for Heavy Duty Diesel Engines," SAE Technical Paper 880010, 1988, https://doi.org/10.4271/880010.
- Kiyota Y. Tsuji K. Kume S. Nakayama O. “Development of Diesel Particulate Trap Oxidizer System,” SAE Paper No. 860294 1986
- Arai M. Miyashita S. “Development and Selection of Diesel Particulate Trap Regeneration System,” SAE Paper No. 870012 1987
- Lepperhoff G. Kroon G. “Impact of Particulate Traps on the Hydrocarbon Fraction of Diesel Particles” SAE Paper No. 850013 1985
- Weaver C.S. Miller C. Johnson W.A. Higgins T.S. “Reducing the Sulfur and Aromatic Content of Diesel Fuel: Costs, Benefits, and Effectiveness for Emissions Control” SAE Paper No. 860622 1986
- Ingham M.C. Warden R.B. “Cost-Effectiveness of Diesel Fuel Modifications for Particulate Control” SAE Paper No. 870556 1987
- Japan Industrial Standard, JIS K0103-1977
- Watabe Y. Irako K. Miyajima T. Yoshimoto T. Murakami Y. “Trapless Trap-A Catalytic Combustion System of Diesel Particulates Using Ceramic Foam” SAE Paper No. 830082 1983
- Montierth M.R. “Fuel Additive Effect upon Diesel Particulate Filters” SAE Paper No. 840072 1984
- Simon G.M. Stark T.L. “Diesel particulate Trap Regeneration Using Ceramic Wall-Flow Traps, Fuel Additives, and Supplemetal Electrical Igniters” SAE Paper No. 850016 1985
- Ise H. Saitoh K. “Combustion Modes of Light Duty Diesel Particulates in Ceramic Filters with fuel Additives” SAE Paper No. 860292 1986
- Sachdev R. Wong V.W. Shahed S.M. “Effet of Ash Accumulation on the Performance of Diesel Exhaust Particulate Traps” SAE Paper 830182 1983