Vapor Pressures of Mixtures of Gasolines and Gasoline-Alcohol Blends Fuels and Lubricants Dept., General Motors Research Laboratories, Warren, MI

Format:

Conference/Event

Author/Creator:

Furey, Robert L., author.

Conference Name:

1986 SAE International Fall Fuels and Lubricants Meeting and Exhibition (1986-10-06 : Philadelphia, Pennsylvania, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1986

Summary:

An investigation was conducted to determine the change in Reid vapor pressure (RVP) which results when gasoline and various gasoline-alcohol blends are mixed. Such mixing occurs in vehicle fuel tanks when a motorist buys gasolines and blends alternately.When mixing a gasoline with a gasoline-alcohol blend of the same RVP, the resulting mixture always had a higher RVP, due to the non-linear effect of alcohol concentration in gasoline on RVP. Even when a blend had a much lower RVP than gasoline, some mixtures of the two still had higher RVP's than the gasoline. When two common commercial blends, 10 percent ethanol and 10 percent Oxinol 50, both having the same RVP, were mixed in various proportions there was essentially no change in RVP.The results of this study suggest that the presence of both gasolines and blends in the marketplace can lead to higher in-use evaporative emissions from vehicles, even if the blends meet the same volatility standards as gasoline

Notes:

Vendor supplied data

Publisher Number:

861557

Access Restriction:

Restricted for use by site license