Fuel compositions
AssigneeUnion Carbide Corporation
InventorEdmond J. Derderian
Life of this patent
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Abstract
A phase-stable aqueous gasoline/ethanol fuel composition containing an additional alcohol selected from the group consisting of n-butanol, 2-butanol, iso-butanol, 2-methyl-1-butanol, 3-methyl-1-butanol, n-pentanol, and mixtures thereof, as well as a method for producing said fuel composition.
Claims9
A phase-stable aqueous gasoline-ethanol fuel composition consisting essentially of gasoline, water ethanol and iso-butanol, wherein the amount of water and ethanol present in said composition is equivalent to said composition containing a hydrous ethanol having a proof or from about 188 to about 199 in an amount ranging from about 1 to about 12 weight percent and wherein the amount of iso-butanol present in said composition ranges from about 2 to about 4 weight percent, the remainder of said composition consisting essentially of said gasoline, said composition further having a cloud point of about -8.degree. C. or below and a (R+M)/2 octane rating above both that of the gasoline employed as well as above that of a non-aqueous mixture of said gasoline and an amount of ethanol equal to the amount of ethanol present in said composition.
A method for preparing a phase-stable aqueous gasoline-ethanol fuel composition for use in internal combustion engines, said composition having a cloud point of about 31 8.degree. C. or below, (R+M)/2 octane rating above both that of the gasoline employed as well as above that of a non-aqueous mixture of said gasoline and an amount of ethanol equal to the amount of ethanol present in said composition, which comprises mixing gasoline, water and ethanol, with iso-butanol, wherein the amount of water and ethanol present in said composition is equivalent to said composition containing a hydrous ethanol having a proof of from about 188 to about 199 in an amount ranging from about 1 to about 12 weight percent and wherein the amount of iso-butanol present in said composition ranges from obout 2 to about 4 weight percent, the remainder of said composition consisting essentially of said gasoline.
Dependencies are inferred from the claim text.