| Impact of engine lubricant properties on regulated gaseous emissions of 2000-2001 model-year gasoline vehicles. | |
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MedLine Citation:
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PMID: 15061609 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The impact of the sulfur (S) content in lubricating oil was evaluated for four ultra-low-emission vehicles and two super-ultra-low-emission vehicles, all with low mileage. The S content in the lube oils ranged from 0.01 to 0.76%, while the S content of the gasoline was fixed at 0.2 ppmw. Vehicles were configured with aged catalysts and tested over the Federal Test Procedure, at idle and at 50-mph cruise conditions. In all testing modes, variations in the S level of the lubricant did not significantly affect the regulated gas-phase tailpipe emissions. In addition to the regulated gas-phase emissions, a key element of the research was measuring the engine-out sulfur dioxide (SO2) in near-real-time. This research used a new methodology based on a differential optical absorption spectrometer (DOAS) to measure SO2 from the lubricants used in this study. With the DOAS, the contribution of SO2 emissions for the highest-S lubricant was found to range from less than 1 to 6 ppm on a gasoline S equivalent basis over the range of vehicles and test cycles used. The development and operation of the DOAS is discussed in this paper. |
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Authors:
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Thomas D Durbin; Claudia G Sauer; John T Pisano; Sam H Rhee; Tao Huai; J Wayne Miller; Gervase I MacKay; John Robbins; Heather Gamble; Albert M Hochhauser; Michael C Ingham; Robert A Gorse; Loren K Beard |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Journal of the Air & Waste Management Association (1995) Volume: 54 ISSN: 1096-2247 ISO Abbreviation: J Air Waste Manag Assoc Publication Date: 2004 Mar |
Date Detail:
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Created Date: 2004-04-05 Completed Date: 2004-04-22 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 9503111 Medline TA: J Air Waste Manag Assoc Country: United States |
Other Details:
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Languages: eng Pagination: 258-68 Citation Subset: IM |
Affiliation:
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Bourns College of Engineering-Center for Environmental Research and Technology, University of California, Riverside, California, USA. durbin@cert.ucr.edu |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Air Pollutants
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analysis* Automobiles* Engineering Environmental Monitoring Gasoline Lubrication Sulfur Dioxide / analysis* Vehicle Emissions / analysis* |
| Chemical | |
Reg. No./Substance:
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0/Air Pollutants; 0/Gasoline; 0/Vehicle Emissions; 7446-09-5/Sulfur Dioxide |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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