This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Effects of Engine Oil Composition on the Activity of Exhaust Emissions Oxidation Catalysts
Annotation ability available
Sector:
Language:
English
Abstract
Platinum, palladium, and copper-chromium oxidation catalysts for exhaust emission control were exposed to exhaust gases from a steady-state engine dynamometer test in which the amount of oil consumed per unit volume of catalyst was high. When unleaded gasoline (0.004 Pb g/gal, 0.004 P g/gal) was used, conventional SE oil caused somewhat greater loss of catalyst activity than an ashless and phosphorus-free (“clean”) oil. Chemical analysis of the catalyst indicated that phosphorus from the conventional oil was probably responsible for the difference. However, a test run with low-lead (0.5 Pb g/gal, 0.004 P g/gal) gasoline and “clean” oil caused much greater catalyst activity deterioration than either of the tests with unleaded gasoline. The findings of this study indicate that engine oil effects on catalyst durability are of secondary practical importance, and that conventional SE engine oils will probably be acceptable for cars equipped with catalytic converters for the oxidation of exhaust hydrocarbons and carbon monoxide.
Recommended Content
Authors
Topic
Citation
Gallopoulos, N., Summers, J., and Klimisch, R., "Effects of Engine Oil Composition on the Activity of Exhaust Emissions Oxidation Catalysts," SAE Technical Paper 730598, 1973, https://doi.org/10.4271/730598.Also In
References
- Snyder P. W. Stover W. A. Lassen H. G. “Status Report on HC/CO Oxidation Catalysts for Exhaust Emission Control.” SAE Transactions 81 1972 paper 720479
- Campau R. M. Stefan A. Hancock E. E. “Ford Durability Experience on Low Emission Concept Vehicles.” “Inter Industry Emission Control Progress Report.” New York Society of Automotive Engineers, Inc. 1972 paper 720488
- Klimisch R. L. Schlatter J. C. “The Control of Automotive Emissions by Catalysts.” Canadian Society for Chemical Engineering Toronto September 1972
- Gagliardi J. C. Smith C. S. Weaver E. E. “Effect of Fuel and Oil Additives on Catalytic Converters.” Paper 63-72 American Petroleum Institute, Division of Refining Midyear Meeting New York May 1972
- “Multicylinder Test Sequences for Evaluating Automotive Engine Oils.” American Society for Testing and Materials Special Technical Publication 315F (1972) 53 111
- Kabel R. H. “An Engine-Dynamometer Test Procedure for Evaluating Oil Thickening Characteristics.” SAE Transactions 79 1970 paper 700507
- Hunter J. E. “Studies of Catalyst Degradation in Automotive Emission Control Systems.” Paper 720122 SAE Automotive Engineering Congress Detroit January 1972
- Klimisch R. L. Taylor K. C. “Dual Functionality and Synergism in the Catalytic Reduction of Nitric Oxide.” Environmental Science and Technology 7 1973 127
- Summers J. C. Klimisch R. L. “Aging of Alumina-Supported Copper Catalysts.” 5th International Conference of Catalysis Palm Beach, Fla. August 1972