Aviation fuel

Abstract

A jet aviation fuel based on aliphatic ethers is disclosed wherein the fuel comprises a compound according to the invention, a mixture of compounds according to the invention, a mixture of the pure or mixed aliphatic ethers admixed with conventional jet aviation fuel, or a mixture of said ethers with conventional hydrocarbon fuel, thus giving a product conforming to a jet aviation fuel standard.

1 - 55 . (canceled) 
     
     
         56 . A jet aviation fuel comprising an aliphatic ether compound of formula (I):
   R1-O—R2
   wherein R1 and R2 individually are aliphatic carbon chains.   
     
     
         57 . The jet aviation fuel of  claim 56 , the aliphatic ether compound of formula (I) having a total number of carbon atoms in the range of 6 to 16. 
     
     
         58 . The jet aviation fuel of  claim 56 , R1 having 1 to 10 carbon atoms. 
     
     
         59 . The jet aviation fuel of  claim 58 , R1 having 1 to 3 carbon atoms and R2 having 4 to 10 carbon atoms. 
     
     
         60 . The jet aviation fuel of  claim 56 , R2 having 1 to 10 carbon atoms. 
     
     
         61 . The jet aviation fuel of  claim 60 , R2 having 1 to 3 carbon atoms and R1 having 4 to 10 carbon atoms. 
     
     
         62 . The jet aviation fuel of  claims 56 , R1 and R2 individually being un-branched aliphatic carbon chains. 
     
     
         63 . The jet aviation fuel of  claim 56 , the aliphatic ether compound of formula (I) being selected from the group consisting of propyl butyl ether, diisopentyl ether, propyl pentyl ether, isopropyl pentyl ether, butyl pentyl ether, pentyl ether, methyl hexyl ether, ethyl hexyl ether, propyl hexyl ether, isopropyl hexyl ether, butyl hexyl ether, (1-methylpropyl) hexyl ether, pentyl hexyl ether, hexyl ether, methyl heptyl ether, ethyl heptyl ether, propyl heptyl ether, butyl heptyl ether, pentyl heptyl ether, isoamyl heptyl ether, methyl octyl ether, ethyl octyl ether, propyl octyl ether, butyl octyl ether, isobutyl octyl ether, (1-methylpropyl) octyl ether, pentyl octyl ether, isopentyl octyl ether, butyl nonyl ether, methyl decyl ether, ethyl decyl ether, propyl decyl ether, butyl decyl ether, propyl dodecyl ether and butyl dodecyl ether. 
     
     
         64 . The jet aviation fuel of  claim 56 , the aliphatic ether compound of formula (I) having a boiling point between 115° C. and 300° C. 
     
     
         65 . The jet aviation fuel of  claim 56 , the aliphatic ether compound of formula (I) having a density of between 0.71 and 0.82 g/cm 3 . 
     
     
         66 . The jet aviation fuel of  claim 56 , further comprising at least 25% of a conventional jet aviation fuel. 
     
     
         67 . The jet aviation fuel of  claim 66 , the conventional jet aviation fuel being at least 75% to 99% of the jet aviation fuel. 
     
     
         68 . The jet aviation fuel of  claim 66 , the conventional jet aviation fuel being selected from the group consisting of Jet A, Jet A-1, TS-1, Jet B or combinations thereof. 
     
     
         69 . The jet aviation fuel of  claim 66 , the conventional jet aviation fuel being a hydrocarbon fuel having a mixture of components each having a total number of carbon atoms in the range of 8 to 16. 
     
     
         70 . The jet aviation fuel of  claim 66 , the jet aviation fuel having more than one aliphatic ether compound of formula (I). 
     
     
         71 . The jet aviation fuel of  claim 70 , the more than one aliphatic ether compound of formula (I) being selected from the group consisting of propyl butyl ether, diisopentyl ether, propyl pentyl ether, isopropyl pentyl ether, butyl pentyl ether, pentyl ether, methyl hexyl ether, ethyl hexyl ether, propyl hexyl ether, isopropyl hexyl ether, butyl hexyl ether, (1-methylpropyl) hexyl ether, pentyl hexyl ether, hexyl ether, methyl heptyl ether, ethyl heptyl ether, propyl heptyl ether, butyl heptyl ether, pentyl heptyl ether, isoamyl heptyl ether, methyl octyl ether, ethyl octyl ether, propyl octyl ether, butyl octyl ether, isobutyl octyl ether, (1-methylpropyl) octyl ether, pentyl octyl ether, isopentyl octyl ether, butyl nonyl ether, methyl decyl ether, ethyl decyl ether, propyl decyl ether, butyl decyl ether, propyl dodecyl ether and butyl dodecyl ether. 
     
     
         72 . The jet aviation fuel of  claim 56 , the jet aviation fuel being not for use in internal combustion gasoline engines. 
     
     
         73 . The jet aviation fuel of  claim 56 , the jet aviation fuel being for use in a jet engine. 
     
     
         74 . A jet aviation fuel comprising:
 i. at least 25% of a hydrocarbon jet fuel admixture, wherein the hydrocarbon jet fuel admixture being not for use in an internal combustion gasoline engine, and   ii. at least 25% of two or more aliphatic ether compounds.   
     
     
         75 . The jet aviation fuel of  claim 74 , the two or more aliphatic ether compounds being selected from the group consisting of propyl butyl ether, diisopentyl ether, propyl pentyl ether, isopropyl pentyl ether, butyl pentyl ether, pentyl ether, methyl hexyl ether, ethyl hexyl ether, propyl hexyl ether, isopropyl hexyl ether, butyl hexyl ether, (1-methylpropyl) hexyl ether, pentyl hexyl ether, hexyl ether, methyl heptyl ether, ethyl heptyl ether, propyl heptyl ether, butyl heptyl ether, pentyl heptyl ether, isoamyl heptyl ether, methyl octyl ether, ethyl octyl ether, propyl octyl ether, butyl octyl ether, isobutyl octyl ether, (1-methylpropyl) octyl ether, pentyl octyl ether, isopentyl octyl ether, butyl nonyl ether, methyl decyl ether, ethyl decyl ether, propyl decyl ether, butyl decyl ether, propyl dodecyl ether and butyl dodecyl ether.