Vapor Pressures of Alcohol−Gasoline Blends

Reid vapor pressures (RVPs) were determined for alcohol−gasoline blends containing 5−85% by volume of methanol, ethanol, 1-propanol, 2-propanol, 1-butanol, 2-butanol, i-butanol (2-methyl-1-propanol), and t-butanol (2-methyl-2-propanol). The results are compared to literature data. Most alcohols form...

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Bibliographic Details
Published inEnergy & fuels Vol. 24; no. 6; pp. 3647 - 3654
Main Authors Andersen, V. F, Anderson, J. E, Wallington, T. J, Mueller, S. A, Nielsen, O. J
Format Journal Article
LanguageEnglish
Published American Chemical Society 17.06.2010
Subjects
Renewable Energy
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Summary:Reid vapor pressures (RVPs) were determined for alcohol−gasoline blends containing 5−85% by volume of methanol, ethanol, 1-propanol, 2-propanol, 1-butanol, 2-butanol, i-butanol (2-methyl-1-propanol), and t-butanol (2-methyl-2-propanol). The results are compared to literature data. Most alcohols form near-azeotropic mixtures with hydrocarbons in gasoline that affect the vapor pressure of the blend in a non-ideal manner. In addition, vapor pressures of dual-alcohol blends with gasoline containing a range of ethanol and 1-butanol volume percentages were determined. We demonstrate a simple method to prepare dual-alcohol−gasoline blends with RVPs indistinguishable from that of the base gasoline. It may be advantageous to use alcohols in addition to ethanol in the form of dual- or multi-alcohol blends as these become available in larger scale in the future.
ISSN:0887-0624
1520-5029
DOI:10.1021/ef100254w