Patent ID: 6068670
Filing Date: 2000-05-30
Classification: C10L

Abstract:
Improved fuel comprising an emulsion of water in at least one hydrocarbon,this emulsion further including an emulsifying system comprising:.DELTA. (I) at least one sorbitol ester of the general formula ##STR9## in which: the radicals X are identical to or different from one another and are each OH or R.sup.1 COO.sup.-, where R.sup.1 is a linear or branched, saturated or unsaturated, aliphatic hydrocarbon radical optionally substituted by hydroxyls and having from 7 to 22 carbon atoms, provided that at least one of said radicals X is R.sup.1 COO.sup.-,this ester (I) having HLB of between 1 and 9;.DELTA. (II) at least one fatty acid ester of the general formula ##STR10## in which: R.sup.2 is a linear or branched, saturated or unsaturated, aliphatic hydrocarbon radical optionally substituted by hydroxyl groups and having from 7 to 22 carbon atoms,R.sup.3 is a linear or branched C.sub.1 -C.sub.10 alkylene,n is an integer greater than or equal to 6, andR.sup.4 is H, linear or branched C.sub.1 -C.sub.10 alkyl or ##STR11## where R.sup.5 is as defined above for R.sup.2, and .DELTA. (III) at least one polyalkoxylated alkylphenol of the general formula ##STR12## in which: R.sup.6 is a linear or branched C.sub.1 -C.sub.20 alkyl,m is an integer greater than or equal to 8, andR.sup.7 and R.sup.8 are respectively as defined above for R.sup.3 and R.sup.4 of formula (II),the emulsifying system having an overall HLB of between 6 and 8; andthe emulsion comprising droplets of aqueous disperse phase of means size less than or equal to 3 .mu.m, with a standard deviation of less than 1 .mu.m.