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The impact of crankcase oil containing phosphorus on catalytic converters and engine exhaust emissions

The impact of crankcase oil containing phosphorus on catalytic converters and engine exhaust... Two 10W30 mineral‐base phosphorus containing (commercial) and phosphorus‐free (P‐Free) crankcase oils were tested in the engine dynamometer for the poisoning effects on a catalytic converter and emission‐engine’s performance. The emission results of the two oils were compared with and without a catalytic converter, including the light‐off temperature of the catalyst. Surface characterisation was used to determine accumulated catalyst poisoning from the oil additives. The performance analysis shows that the catalytic converter lowers the torque and power for the commercial and P‐Free oils, whereas the specific fuel consumption increases for both oils in the presence of the catalytic converter. In both cases of the presence and the absence of catalytic converter the torque, power and specific fuel consumption remain the same for phosphorus containing and P‐Free oils. The presence of the catalytic converter shows lower HC and CO and higher CO 2 emissions for both P‐Free and commercial oils. Surface characterisation using x‐ray microanalysis techniques of Scanning Electron Microscopy and indicated residual amounts of poisons, predominantly P, Ca, S and Zn deposited on the catalyst. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Industrial Lubrication and Tribology Emerald Publishing

The impact of crankcase oil containing phosphorus on catalytic converters and engine exhaust emissions

Industrial Lubrication and Tribology , Volume 53 (6): 19 – Dec 1, 2001

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Publisher
Emerald Publishing
Copyright
Copyright © 2001 MCB UP Ltd. All rights reserved.
ISSN
0036-8792
DOI
10.1108/00368790110408337
Publisher site
See Article on Publisher Site

Abstract

Two 10W30 mineral‐base phosphorus containing (commercial) and phosphorus‐free (P‐Free) crankcase oils were tested in the engine dynamometer for the poisoning effects on a catalytic converter and emission‐engine’s performance. The emission results of the two oils were compared with and without a catalytic converter, including the light‐off temperature of the catalyst. Surface characterisation was used to determine accumulated catalyst poisoning from the oil additives. The performance analysis shows that the catalytic converter lowers the torque and power for the commercial and P‐Free oils, whereas the specific fuel consumption increases for both oils in the presence of the catalytic converter. In both cases of the presence and the absence of catalytic converter the torque, power and specific fuel consumption remain the same for phosphorus containing and P‐Free oils. The presence of the catalytic converter shows lower HC and CO and higher CO 2 emissions for both P‐Free and commercial oils. Surface characterisation using x‐ray microanalysis techniques of Scanning Electron Microscopy and indicated residual amounts of poisons, predominantly P, Ca, S and Zn deposited on the catalyst.

Journal

Industrial Lubrication and TribologyEmerald Publishing

Published: Dec 1, 2001

Keywords: Emissions; Oil; Engines; Performance measurement

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