Abstract: The present disclosure relates to diesel fuel emulsions, a process to make them and the use thereof in a combustion process. The emulsions are comprise a surfactant of formula wherein R is a C5-C22 linear or branched, saturated or non-saturated, substituted or unsubstituted hydrocarbon group, A is or CH2, each X, independently, is H, COOM or SO3M, with at least one X in the molecule being COOM or SO3M, each R2, independently, is H, CH3, or C2H5, k=0-3, each m, independently, is about 2-6, each n, independently, is about 1-6 and the alkylene formed when n>1 may be substituted with alkyl groups, o=0-40, and each M, independently, is selected from H and any cation M+.

Abstract: The present disclosure relates to diesel fuel emulsions, a process to make them and the use thereof in a combustion process. The emulsions are comprise a surfactant of formula wherein R is a C5-C22 linear or branched, saturated or non-saturated, substituted or unsubstituted hydrocarbon group, A is or CH2, each X, independently, is H, COOM or SO3M, with at least one X in the molecule being COOM or SO3M, each R2, independently, is H, CH3, or C2H5, k=0-3, each m, independently, is about 2-6, each n, independently, is about 1-6 and the alkylene formed when n>1 may be substituted with alkyl groups, o=0-40, and each M, independently, is selected from H and any cation M+.

Abstract: The invention relates to an oil-in-water emulsion comprising an oil phase and an aqueous phase, and a primary surfactant, wherein the oil phase is dispersed in the aqueous phase, and wherein the oil-in-water emulsion has: an average droplet size distribution (D[4,3]) in the range of from 3 to 15 um and less than 3 wt % of the droplets have a particle size of greater than 125 um; a viscosity of greater than 100 and up to 700 mPas at 50° C.+?10% and 20 s?1+?10%; and a static stability of less than 5% residue after centrifugation at 50° C.+?10% and 2000 g=10% for 30 minutes+?10%.

Abstract: The invention relates to an oil-in-water emulsion comprising an oil phase and an aqueous phase, and a primary surfactant, wherein the oil phase is dispersed in the aqueous phase, and wherein the oil-in-water emulsion has: an average droplet size distribution (D[4,3]) in the range of from 3 to 15 ?m and less than 3 wt % of the droplets have a particle size of greater than 125 ?m; a viscosity of greater than 100 and up to 700 mPas at 50° C.±10% and 20 s?1±10%; and a static stability of less than 5% residue after centrifugation at 50° C.±10% and 2000 g=10% for 30 minutes±10%. A process for preparing such an oil-in-water emulsion comprises preparing an aqueous phase comprising a primary surfactant, heating a hydrocarbon-containing oil-phase, and blending the hydrocarbon-containing oil and the aqueous phase under conditions sufficient to form an oil-in-water emulsion. The invention also relates to methods for determining the static and dynamic stability of oil-in-water emulsions.