Browse Publications Technical Papers 2000-01-0857
2000-03-06

Impact of Sulfur in Gasoline on Nitrous Oxide and Other Exhaust Gas Components 2000-01-0857

Sulfur content in gasoline is known to reduce the efficiency of the catalytic converters that are used to reduce pollutants in the exhaust gas of cars. There is some concern that nitrous oxide emissions (N2O) increase when fuel with a high sulfur content is used. The engine out and tailpipe mass emissions of two cars conforming to the California LEV-standard were analyzed. The influence of the fuel sulfur content on the emissions of the regulated and some unregulated pollutants during FTP test cycles was determined. Four fuels covering the range from less than 1 to 330 ppm sulfur content were used. Over that range of fuel sulfur concentration the engine out emissions of sulfur dioxide (SO2 ) of both cars increased. Tailpipe emissions of SO2 were only found at fuel sulfur concentrations of 150 and 330 ppm. For both vehicles a correlation between the N2O emissions and the fuel sulfur content was found. For vehicle B increasing the fuel sulfur content resulted in a decrease in converter efficiency for methane (CH4), carbon monoxide (CO) and nitric oxides (NOx) and an increase in NH3 and N2O emissions. In the case of vehicle A an increase in N2O emission was found as well. For the other compounds we found less influence compared to vehicle B.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Low-Temperature Ethanol Reforming: A Multi-Cylinder Engine Demonstration

2011-01-0142

View Details

TECHNICAL PAPER

Indian Experience With The Use Of Ethanol-Gasoline Blends On Two Wheelers and Passenger Cars

2004-28-0086

View Details

TECHNICAL PAPER

Methane Emissions Abatement from Lean Burn Natural Gas Vehicle Exhaust: Sulfur's Impact on Catalyst Performance

961971

View Details

X