Fuel composition
AssigneeExxonMobil Research and Engineering Company
InventorsRobert Howie Barbour, Stuart Pace, Alan Mark Schilowitz
Life of this patent
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Abstract
A fuel composition comprising gasoline having a sulphur content of less than 10 ppm by weight and an aromatic content of less than 25% by volume, characterized in that said composition comprises at least 5% by volume of olefins and is substantially free of any ethers. The fuel composition so formed has reduced emissions and improved fuel economy. The emissions from such compositions can be further reduced by incorporating therein a small amount of ethanol.
Claims10
A fuel composition comprising gasoline having a sulphur content of less than 10 ppm by weight and an aromatic content of less than 25% by volume, characterized in that said composition comprises at least 5% by volume of olefins and is substantially free of any ethers.
A fuel composition according to any one of the preceding claims wherein the fuel composition comprises at least 10% by volume of olefins based on the total volume of the composition.
A fuel composition according to any one of the preceding claims wherein the fuel composition comprises from 10-25% by volume of olefins based on the total volume of the composition.
A fuel composition according to any one of the preceding claims wherein the olefin present in said composition comprises one or more of C3-C10 olefins.
A fuel composition according to any one of the preceding claims wherein the olefin present in said composition is selected from one or more of pent-1-ene, hex-1-ene, hept-1-ene, oct-1-ene, non-1-ene and dec-1-ene.
A fuel composition of reduced RVP comprising gasoline having a sulphur content of less than 10 ppm by weight and an aromatic content of less than 25% by volume, characterized in that said composition comprises at least 5% by volume of olefins, greater than 0.5% by volume of ethanol and is substantially free of any ethers.
Dependencies are inferred from the claim text.