Synergistic additive composition for petroleum fuels
View Patent ↗Disclosed herein is a fuel oil composition with enhanced conductivity. The oil composition comprises a Petroleum Based Component and a combination of Lubricity and Conductivity additives. In one aspect, additional additives can be added such as: (a) low temperature operability/cold flow additives, (b) corrosion inhibitors, (c) cetane improvers, (d) detergents, and (e) dyes and markers (f) anti-icing additives, (g) demulsifiers/anti haze additives, (h) antioxidants, (i) metal deactivators, (j) biocides, and (k) thermal stabilizers. Further, the present disclosure describes a method of using such composition is described.
1. A fuel oil composition comprising:
a. a Petroleum Based Component, and
b. a conductivity enhancing synergistic combination of Lubricity and Conductivity additives
wherein said Conductivity additives are a mixture of polysulphone and quaternary ammonium salt or a mixture of polysulphone and quaternary ammonium salt amine/epichlorhydrin adduct dinonylnaphthylsulphonic acid, said Lubricity additives are alkyl succinic esters or alkenyl succinic esters.
2. The fuel oil composition of claim 1 , wherein said Petroleum Based Component is a middle distillate fuel, a jet fuel, or a Fischer-Tropsch fuel.
3. The fuel oil composition of claim 1 , wherein said Petroleum Based Component comprises less then about 500 ppm by mass of sulfur.
4. The fuel oil composition of claim 1 , wherein said Petroleum Based Component comprises less then about 15 ppm by mass of sulfur.
5. The fuel oil composition of claim 1 , wherein said Lubricity additive is present in the fuel between about 5 to about 200 mg/l of fuel.
6. The fuel oil composition of claim 1 , wherein said Conductivity additive is present in the fuel between about 0.01 to about 100 mg/l of fuel.
7. The fuel oil composition of claim 1 , wherein said Conductivity additive is present in the fuel between about 0.1 to about 15 mg/l of fuel.
8. The fuel oil composition of claim 1 , wherein said Conductivity additive is present in the fuel between about 0.3 to about 5 mg/l of fuel.
9. A method of increasing the conductivity of a hydrocarbon fuel by metering into the fuel a conductivity enhancing synergistic combination of Lubricity and Conductivity additives wherein said Conductivity additives are a mixture of polysulphone and quaternary ammonium salt or a mixture of polysulphone and quaternary ammonium salt amine/epichlorhydrin adduct dinonylnaphthylsulphonic acid, said Lubricity additives are alkyl succinic esters or alkenyl succinic esters.
10. The method of claim 9 , wherein said synergistic components are metered together.
11. The method of claim 9 , wherein said synergistic components are metered separately.
12. The fuel composition of claim 1 further comprising additives selected from the group consisting of: (a) low temperature operability/cold flow additives (b) corrosion inhibitors (c) cetane improvers (d) detergents, (e) dyes and markers, (f) anti-icing additives (g) demulsifiers/anti haze additives (h) antioxidants (i) metal deactivators (j) biocides, and (k) thermal stabilizers.
13. A method of operating an internal combustion engine using as fuel for the engine a fuel oil composition as recited in claim 1 .
14. The method of claim 13 , wherein said fuel oil is a middle distillate fuel containing less than 500 ppm by mass of sulfur.