US2007033860A1PendingUtilityA1

Fuel composition

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Assignee: BARBOUR ROBERT HPriority: Mar 10, 2000Filed: Oct 17, 2006Published: Feb 15, 2007
Est. expiryMar 10, 2020(expired)· nominal 20-yr term from priority
Inventors:Robert H. BarbourStuart PaceAlan M. Schilowitz
C10L 1/023C10L 1/06
52
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Claims

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.

Claims

exact text as granted — not AI-modified
1 . 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.  
     
     
         2 . A fuel composition according to  claim 1  wherein the sulphur content of the fuel composition is less than 5 ppm by weight.  
     
     
         3 . A fuel composition according to  claim 1  or  2  wherein the aromatic content of the composition is less than 20% by volume.  
     
     
         4 . 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.  
     
     
         5 . 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.  
     
     
         6 . A fuel composition according to any one of the preceding claims wherein the olefin present in said composition comprises one or more of C 3 -C 10  olefins.  
     
     
         7 . 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.  
     
     
         8 . 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.  
     
     
         9 . A fuel composition according to  claim 8  wherein the amount of ethanol present in said composition is in the range from 1.5 to 10.0% by weight of the total fuel composition.  
     
     
         10 . A fuel composition according to  claim 8  or  9  wherein said composition has an RVP value below 62 kPa (9 p.s.i.).  
     
     
         11 . 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 10% by volume of olefins based on the total volume of the composition and is substantially free of any ethers.  
     
     
         12 . A fuel composition according to  claim 11  wherein the sulphur content of the fuel composition is less than 5 ppm by weight.  
     
     
         13 . A fuel composition according to  claim 11  or  12  wherein the aromatic content of the composition is less than 20% by volume.  
     
     
         14 . 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.  
     
     
         15 . A fuel composition according to any one of the preceding claims wherein the olefin present in said composition comprises one or more of C 3 -C 10  olefins.  
     
     
         16 . 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.  
     
     
         17 . A fuel composition according to  claim 11  having reduced RVP comprising greater than 0.5% by volume of ethanol.  
     
     
         18 . A fuel composition according to  claim 17  wherein the amount of ethanol present in said composition is in the range from 1.5 to 10.0% by weight of the total fuel composition.  
     
     
         19 . A fuel composition according to  claim 17  or  18  wherein said composition has an RVP value below 62 kPa (9 p.s.i.).  
     
     
         20 . Method for improving lubricity and octane performances of fuel composition comprising gasoline and having a sulfur content of less than 10 ppm by weight and an aromatic content of less than 25% by volume by increasing the olefinic content to at least 5% by volume without recourse to the use of ethers.  
     
     
         21 . The method of  claim 20  where the fuel composition comprises greater than 0.5% by volume of ethanol.

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