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AssigneeBrandeis University
InventorDaniel Perlman
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A method for enhancing the visibility of a flame produced during free-burning of an aqueous alcohol-based fuel composition in air. The fuel composition is substantially free of skin-irritants, corrosive salts and agents which, when burned in air, produce air pollution evidenced by the production of volatile organic compounds. The fuel includes between approximately 10% and 30% by volume of water, and between approximately 70% and 90% by volume of a mixture of alcohols including ethanol and isopropanol, the ethanol constituting between approximately 24% and 83% by volume of the fuel composition. The method includes providing an amount of isopropanol ranging between approximately 7% and 60% by volume of the fuel composition, in which the volume ratio of isopropanol to ethanol in the fuel does not exceed 2:1.
A method for enhancing and sustaining the visibility of a flame produced during free-burning of an aqueous alcohol-based fuel composition in air, comprising the step of:
A fuel composition providing enhanced flame visibility on combustion, comprising between approximately 70% and 90% by volume of a mixture of alcohols and between approximately 10% and 30% by volume of water, wherein said mixture of alcohols comprises an amount of isopropanol between approximately 7% and 60% by volume of said fuel composition and an amount of ethanol between approximately 24% and 83% by volume of said fuel composition, and wherein the volume ratio of said isopropanol to said ethanol in the fuel does not exceed 2:1,
Dependencies are inferred from the claim text.