DIESEL FUEL ADDITIVES CONTAINING CERIUM OR MANGANESE AND DETERGENTS
First Claim
1. A method of improving the efficiency of a diesel fuel for an internal combustion engine which comprises adding to the fuel prior to the introduction of the fuel to a vehicle or other apparatus comprising an internal combustion engine a diesel fuel additive package comprising cerium oxide nanoparticles, a detergent/dispersant and a demulsifier.
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Accused Products
Abstract
Provided herein is a diesel fuel additive composition comprising cerium oxide nanoparticles, optionally a manganese compound, a detergent, and a demulsifier. In one embodiment, the demulsifier has relatively low phosphorus concentration to thereby improve the solubility of the components and the thermal stability and clarity of the resulting diesel fuel. Also provided are methods for improving fuel economy, reducing smoke production, inhibiting deposition of sludge, and improved storage stability.
30 Citations
35 Claims
- 1. A method of improving the efficiency of a diesel fuel for an internal combustion engine which comprises adding to the fuel prior to the introduction of the fuel to a vehicle or other apparatus comprising an internal combustion engine a diesel fuel additive package comprising cerium oxide nanoparticles, a detergent/dispersant and a demulsifier.
- 13. A fuel additive which comprises cerium oxide and/or a manganese source and a detergent.
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24. A method for improving diesel fuel stability, said method comprising adding to the fuel prior to the introduction of the fuel to a vehicle or other apparatus comprising an internal combustion engine a diesel fuel additive package comprising cerium oxide nanoparticles, a detergent and a demulsifier.
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25. A method for improving combustion in a diesel engine, said method comprising adding to the fuel prior to the introduction of the fuel to a vehicle or other apparatus comprising an internal combustion engine a diesel fuel additive package comprising cerium oxide nanoparticles, a detergent and a demulsifier.
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26. A method for reducing smoke from combustion in a diesel engine, said method comprising a method for improving diesel fuel stability, said method comprising adding to the fuel prior to the introduction of the fuel to a vehicle or other apparatus comprising an internal combustion engine a diesel fuel additive package comprising cerium oxide nanoparticles, a detergent and a demulsifier.
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27. A method for improving the solubility of an organometallic fuel additive in a diesel fuel, said method comprising adding to the fuel prior to the introduction of the fuel to a vehicle or other apparatus comprising an internal combustion engine a diesel fuel additive package comprising cerium oxide nanoparticles, a detergent and a demulsifier.
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28. A method for reducing the haze in a diesel fuel having diesel fuel additives, said method comprising adding to the fuel prior to the introduction of the fuel to a vehicle or other apparatus comprising an internal combustion engine a diesel fuel additive package comprising cerium oxide nanoparticles, a detergent and a demulsifier.
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29. A method to reduce filter blockage of fuel filters in a vehicle or other apparatus employing a diesel engine combusting a diesel fuel and having a fuel filter, said method comprising adding to the diesel fuel prior to the introduction of the fuel to a vehicle or other apparatus a diesel fuel additive package comprising cerium oxide nanoparticles, a detergent and a demulsifier.
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30. A method to improve the demulsification of a fuel additive comprising adding to the fuel additive cerium oxide nanoparticles, a detergent and a demulsifier, wherein the demulsifier has less than about 30 mg/kg of phosphorus.
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31. An improved fuel additive composition of the present disclosure can comprise a material containing two or more metal-containing combustion catalysts, a detergent/dispersant, and a demulsifier having up to about 30 mg/kg of phosphorus.
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32. A method for foam reduction in a diesel fuel, said method comprising providing to the fuel a fuel additive package comprising cerium oxide nanoparticles and an alkyl nitrate cetane number improver additive.
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33. An emissions control system for the after-treatment of a diesel fuel combustion process exhaust stream comprising:
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an exhaust passageway for the passage of an exhaust stream containing exhaust byproducts from the combustion of a diesel fuel, an oxidation catalyst, a particulate filter selected from the group consisting of continuously regenerating technology diesel particulate filter, a diesel particular filter, and a catalyzed diesel particulate filter, located within the exhaust passageway and adapted to contact the exhaust stream, wherein the fuel has an additive package introduced into it, the additive package comprising cerium oxide and/or manganese, a detergent, an alkyl nitrate ignition improver, and optionally a demulsifier, whereby the operation of the particulate filter is enhanced.
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34. A method for improving an emissions control system for the after-treatment of a diesel fuel combustion process exhaust stream comprising:
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an exhaust passageway for the passage of an exhaust stream containing exhaust byproducts from the combustion of a diesel fuel, a particulate filter selected from the group consisting of continuously regenerating technology diesel particulate filter, a diesel particular filter, and a catalyzed diesel particulate filter, located within the exhaust passageway and adapted to contact the exhaust stream, wherein the fuel has an additive package introduced into it, the additive package comprising cerium oxide and/or manganese, a detergent, an alkyl nitrate ignition improver, and optionally a demulsifier, whereby the operation of the particulate filter is enhanced.
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35. Use in a diesel engine having non-cylindrical injector nozzle holes of a diesel fuel additive package comprising cerium oxide, a detergent/dispersant, and a demulsifier having less than 24 mg/kg of phosphorus.
Specification