The invention relates to the use of an emulsified fuel in combination with an engine oil that shows a synergistic effect in reducing emissions such as particulate matter, hydrocarbons and/or nitrogen oxides (NO, NO2, N2O, collectively NOx) and/or reducing wear from an engine.
대표청구항▼
We claim: 1. A combination of a fuel and a lubricant for an internal combustion engine, said fuel and lubricant comprising: (a) an emulsified fuel comprising (1) water, (2) a fuel and (3) an emulsifier wherein the emulsifier comprises a C9-C11 alkoxy poly (ethoxy)8 alcohol; C12-C15 alkoxy poly (iso
We claim: 1. A combination of a fuel and a lubricant for an internal combustion engine, said fuel and lubricant comprising: (a) an emulsified fuel comprising (1) water, (2) a fuel and (3) an emulsifier wherein the emulsifier comprises a C9-C11 alkoxy poly (ethoxy)8 alcohol; C12-C15 alkoxy poly (isopropoxy)22-26 alcohol; diglycerol monooleate; diglycerol monostearate; polyglycerol monooleate; polyethylene glycol soya bean oil ester; diglycerol dioleate; diglycerol distearate; polyglycerol dioleate; sorbitan monoisostearate; polyethoxy glycerol trioleate; or a mixture of two or more thereof; (b) at least one lubricant comprising an oil of lubricating viscosity and said lubricant is characterized as having an ash content below 1.0 wt % and as having at least one property selected from the group consisting of: (i) a phosphorous content of less than 0.05 wt %, (ii) a sulfur content of less than 0.5 wt %, (iii) a chlorine content of less than 100 ppm; resulting in the reduction of engine emissions selected from the group consisting of particulate matter, NOx, hydrocarbons, soot and combinations thereof. 2. The combination of claim 1 wherein said fuel is selected from the group consisting of gasoline, diesel, kerosene, naphtha, aliphatics, paraffin and combination thereof; non-hydrocarbonaceous materials selected from the group consisting of alcohols, methanol, ethanol, ether, ethanol ether, diethyl ether, methyl ethyl ether, organo-nitro compounds and combinations thereof; fuels derived from vegetable sources selected from the group consisting of corn, alfalfa, shale, coal and combinations thereof; fuels derived from minerals and mixtures thereof; gas to liquid fuels; mixtures of one or more hydrocarbonaceous fuels and one or more non-hydrocarbonaceous materials; and combinations thereof. 3. The combination of claim 1 wherein the lubricant is in a base oil stock selected from the group consisting of, synthetic base oil, poly alpha olefin base oil, mineral oil, at least 50% synthetic base oil, hydrocarbon oil group 1 base stock, hydrocarbon group 2 base stock, hydrocarbon group 3 base stock, hydrocarbon group 4 base stock and combinations thereof. 4. The combination of claim 1 wherein the emulsifier further comprises a mixture of: the reaction product of a fatty acid with an alkanol amine; and the reaction product of a polyisobutene substituted succinic acid or anhydride with an alkanol amine or an alkylene polyamine, the polyisobutene substituent having a number average molecular weight of about 300 to about 3000. 5. The combination of claim 1 wherein the emulsifier further comprises a mixture of: the product made from the reaction of a polyisobutene-substituted succinic acid or anhydride with an alkanol amine wherein the polyisobutene group has a number average molecular weight of about 1500 to about 3000; the product made from the reaction of a hydrocarbon-substituted succinic acid or anhydride with an alkanol amine wherein the hydrocarbon substituent has about 12 to about 30 carbon atoms; and the product made from the reaction of a polyisobutene-substituted succinic acid or anhydride with at least one alkylene polyamine wherein the polyisobutene group has a number average molecular weight of about 750 to about 1500. 6. The combination of claim 1 wherein the emulsifier further comprises (I) a first polycarboxylic acylating agent having at least one hydrocarbon substituent of about 6 to about 500 carbon atoms, (II) a second polycarboxylic acylating agent optionally having at least one hydrocarbon substituent of up to about 500 carbon atoms, the polycarboxylic acylating agents (I) and (II) being the same or different and being linked together by (III) a linking group derived from a compound having two or more primary amino groups, two or more secondary amino groups, at least one primary amino group and at least one secondary amino group, at least two hydroxyl groups, or at least one primary or secondary amino group and at least one hydroxyl group, the polycarboxylic acylating agents (I) and (II) being reacted with ammonia, an amine, a hydroxyamine, an alcohol, water, or a mixture of two or more thereof. 7. The combination of claim 1 wherein the emulsifier further comprises a polyisobutene substituted succinic acid. 8. The combination of claim 1 wherein the emulsifier further comprises an alkylaryl sulfonate, amine oxide, carboxylated alcohol ethoxylate, ethoxylated amine, ethoxylated amide, glycerol ester, glycol ester, imidazoline, lecithin, lecithin derivative, lignin, monoglyceride, monoglyceride derivative, olefin sulfonate, phosphate ester, phosphate ester derivative, propoxylated fatty acid, ethoxylated fatty acid, propoxylated alcohol or alkyl phenol, sucrose ester, sulfonate of dodecyl or tridecyl benzene, naphthalene sulfonate, petroleum sulfonate, tridecyl or dodecyl benzene sulfonic acid, sulfosuccinate, sulfosuccinate derivative, or mixture of two or more thereof, each of these compounds having a hydrocarbon group of at least about 8 carbon atoms. 9. The combination of claim 1 wherein said lubricant is an ashless engine oil comprising at least one dispersant, at least one antioxidant and combinations thereof. 10. The combination of claim 9 wherein the ashless dispersant is selected from the group consisting of at least one of a polyisobutenyl succinimide, high molecular weight succinic esters, Mannich dispersants, carboxylic dispersants, amine dispersants, polymeric dispersants, and combinations thereof; and wherein the antioxidant is selected from the group consisting of 2,6-di-tertiary butyl-4-methyl phenol, phosphosulfurized terpenes, sulfurized esters, diphenyl amines, bis-nonylated diphenylamine, nonyl diphenylamine, octyl diphenylamine, bis-octylated diphenylamine, bis-decylated diphenylamine, diphenylamine, to 2,6-di-tert-butylphenol, 4-ethyl-2,6-di-tert-butylphenol, 4-propyl-2,6-di-tert-butylphenol, 4-butyl-2,6-di-tert-butylphenol 2,6-di-tert-butylphenol, 4-pentyl-2,6-di-tert-butylphenol, 4-hexyl-2,6-di-tert-butylphenol, 4-heptyl-2,6-di-tert-butylphenol, 4-(2-ethylhexyl)-2,6-di-tert-butylphenol, 4-octyl-2,6-di-tert-butylphenol, 4-nonyl-2,6-di-tert-butylphenol, 4-decyl-2,6-di-tert-butylphenol, 4-undecyl-2,6-di-tert-butylphenol, 4-dodecyl-2,6-di-tert-butylphenol, tetra propylene 2,6-di-tert-butylphenol, 4-tridecyl-2,6-di-tert-butylphenol, 4-tetradecyl-2,6-di-tert-butylphenol, methylene-bridged sterically hindered phenols include 4,4'-methylenebis(6-tert-butyl-o-cresol), 4,4'-methylenebis(2-tert-amyl-o-cresol), 2,2'-methylenebis(4-methyl-6-tert-butylphenol), 3,5-di-tert-butyl-4-hydroxy hydrocinnamie, (iso-octyl ester butyl ester), and combinations thereof. 11. The combination of claim 1 wherein said lubricant is characterized as being ash free with an ash content of 0.0 wt %. 12. The combination of claim 1 comprises other lubricant additives selected from the group consisting of viscosity modifiers, functionalized polymers, corrosion inhibitors, rust inhibitors, viscosity index improvers, pour point depressants, extreme pressure additives, antiwear agents, anti-foam agents, anti-stain additives, anti-foulants and combinations thereof wherein the lubricant additives do not add a significant amount of ash forming metals to provide 9-C11 alkoxy poly (ethoxy)8 alcohol; C12-C15 alkoxy poly (isopropoxy)22-26 alcohol; diglycerol monooleate; diglycerol monostearate; polyglycerol monooleate; polyethylene glycol soya bean oil ester; diglycerol dioleate; diglycerol distearate; polyglycerol dioleate; sorbitan monoisostearate; polyethoxy glycerol trioleate; or a mixture of two or more thereof, (b) at least one lubricant comprising an oil of lubricating viscosity and said lubricant is characterized as having an ash content below 1.0 wt % and as having at least one property selected from the group consisting of: (ii) a phosphorous content of less than 0.05 wt %, (ii) a sulfur content of less than 0.5 wt %, (iii) a chlorine content of less than 100 ppm; resulting in the reduction of emissions selected from the group comprised in particulate matter, NOx, hydrocarbon, soot in combinations thereof. 14. The internal combustion engine of claim 13 wherein said lubricant is an ashless engine oil comprising at least one dispersant, at least one antioxidant and combinations thereof. 15. An internal combustion engine of claim 13 further comprising an exhaust after-treatment device that traps particulates oxidizes and reduces selected exhaust gas components, or traps and converts NOx to other compounds or said engine is equipped with a system to re-circulate exhaust gases to the intake air supply for said engines. 16. A method for reducing emissions in an engine comprising: I. operating an engine using (a) an emulsified fuel comprising (1) water, (2) a fuel and (3) an emulsifier wherein the emulsifier comprises: a C9-C11 alkoxy poly (ethoxy)8 alcohol; C12-C15 alkoxy poly (isopropoxy)22-26 alcohol; diglycerol monooleate; diglycerol monostearate; polyglycerol monooleate; polyethylene glycol soya bean oil ester; diglycerol dioleate; diglycerol distearate; polyglycerol dioleate; sorbitan monoisostearate; polyethoxy glycerol trioleate; or a mixture of two or more thereof; (b) at least one lubricant comprising an oil of lubricating viscosity and said lubricant is characterized as having an ash content below 1.0 wt % and as having at least one property selected from the group consisting of: (i) a phosphorous content of less than 0.05 wt %, (ii) a sulfur content of less than 0.5 wt %, (iii) a chlorine content of less than 100 ppm; resulting in the reduction of engine emissions selected from the group consisting of particulate matter, NOx, hydrocarbons, soot and combinations thereof. 17. The method of claim 16 further comprising at least one of a lubricant additive selected from the group consisting of anti-foams, viscosity modifiers, functionalized polymers, corrosion inhibitors, rust inhibitors, viscosity index improvers, pour point depressants, extreme pressure additives, anti-foam agents, anti-stain additives, anti-foulants and detergents and combinations thereof wherein the lubricant additives used provide <0.5% sulfur or phosphorus compounds which provide <0.05% phosphorus to the engine oil. 18. The combination of claim 1, wherein the lubricant is ash free having an ash content of 0.0 wt %. 19. The combination of claim 9 wherein the ashless dispersant is selected from the group consisting of at least one of a polyisobutenyl succinimide, high molecular weight succinic esters, Mannich dispersants, carboxylic dispersants, amine dispersants, polymeric dispersants, and combinations thereof; and wherein the antioxidant is selected from the group consisting of 2,6-di-tertiary butyl-4-methyl phenol, 4-propyl-2,6-di-tert-butylphenol, 4-butyl-2,6-di-tert-butylphenol 2,6-di-tert-butylphenol, 4-pentyl-2,6-di-tert-butylphenol, 4-hexyl-2,6-di-tert-butylphenol, 4-heptyl-2,6-di-tert-butylphenol, 4-(2-ethylhexyl)-2,6-di-tert-butylphenol, 4-octyl-2,6-di-tert-butylphenol, 4-nonyl-2,6-di-tert-butylphenol, 4-decyl-2,6-di-tert-butylphenol, 4-undecyl-2,6-di-tert-butylphenol, 4-dodecyl-2,6-di-tert-butylphenol, tetra propylene 2,6-di-tert-butylphenol, 4-tridecyl-2,6-di-tert-butylphenol, 4-tetradecyl-2,6-di-tert-butylphenol, 3,5-di-tert-butyl-4-hydroxy hydrocinnamie, (iso-octyl ester butyl ester), and combinations thereof.
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