Influence of oxygenated fuels on the emissions from three pre-1985 light-duty passenger vehicles

摘要: Tailpipe and evaporative emissions from three pre-1985 passenger motor vehicles operating on an oxygenated blend fuel a nonoxgenated base were characterized. Emission data collected for over the Federal Test Procedure at 40, 75, 90 F to simulate ambient driving conditions. The two fuels tested commercial summer grade regular gasoline (the fuel) containing 9.5 percent methyl ter-butyl ether (MTBE), more olefins, fewer aromatics than fuel. measured total hydrocarbons (THCs), speciated hydrocarbons, aldehydes, carbon monoxide (CO), oxides of nitrogen (NOX), benzene, 1,3-butadiene. This study showed no pattern tailpipe regulated emission reduction when was used. THC, CO, 1,3-butadiene both all vehicles, in general, decreased with increasing test temperature, whereas NOX emissions, increased temperature.