EP3127992B1 - Additifs pour carburants permettant de réduire l'arrachement de métal - Google Patents

Additifs pour carburants permettant de réduire l'arrachement de métal Download PDF

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Publication number
EP3127992B1
EP3127992B1 EP16185196.9A EP16185196A EP3127992B1 EP 3127992 B1 EP3127992 B1 EP 3127992B1 EP 16185196 A EP16185196 A EP 16185196A EP 3127992 B1 EP3127992 B1 EP 3127992B1
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EP
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Prior art keywords
fuel
additive
compositions
hydrocarbon
present
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EP16185196.9A
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German (de)
English (en)
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EP3127992A1 (fr
Inventor
Robert H. Barbour
Paul R. Stevenson
Emma Fahey
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Lubrizol Corp
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Lubrizol Corp
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Application filed by Lubrizol Corp filed Critical Lubrizol Corp
Priority to PL16185196T priority Critical patent/PL3127992T3/pl
Priority to EP18211764.8A priority patent/EP3486300A1/fr
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C10L1/18—Organic compounds containing oxygen
    • C10L1/188—Carboxylic acids; metal salts thereof
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C10L1/18—Organic compounds containing oxygen
    • C10L1/192—Macromolecular compounds
    • C10L1/198—Macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds homo- or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon to carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C10L1/143—Organic compounds mixtures of organic macromolecular compounds with organic non-macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C10L1/18—Organic compounds containing oxygen
    • C10L1/188—Carboxylic acids; metal salts thereof
    • C10L1/1881—Carboxylic acids; metal salts thereof carboxylic group attached to an aliphatic carbon atom
    • C10L1/1883—Carboxylic acids; metal salts thereof carboxylic group attached to an aliphatic carbon atom polycarboxylic acid
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L10/00—Use of additives to fuels or fires for particular purposes
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L10/00—Use of additives to fuels or fires for particular purposes
    • C10L10/04—Use of additives to fuels or fires for particular purposes for minimising corrosion or incrustation
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C10L1/22—Organic compounds containing nitrogen
    • C10L1/222—Organic compounds containing nitrogen containing at least one carbon-to-nitrogen single bond
    • C10L1/2222—(cyclo)aliphatic amines; polyamines (no macromolecular substituent 30C); quaternair ammonium compounds; carbamates
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C10L1/22—Organic compounds containing nitrogen
    • C10L1/234—Macromolecular compounds
    • C10L1/238—Macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
    • C10L1/2383—Polyamines or polyimines, or derivatives thereof (poly)amines and imines; derivatives thereof (substituted by a macromolecular group containing 30C)

Definitions

  • the present invention relates to fuel additive compositions and fuel compositions. Also described herein is a method for fueling an internal combustion engine providing reduced oxidative metal pick-up in fuels.
  • Trace metals like these can enter the fuel distribution system through contamination, or through the pick-up (dissolution) of metal, by the fuel, from metals parts that make up part of the fuel distribution system with which the fuel comes into contact.
  • diesel fuel may pick up zinc from galvanized steel surfaces in fuel tanks, resulting in elevated zinc levels in fuels, which may lead to the accelerated injector fouling, discussed above.
  • Zinc, and other metals may also be picked up by the fuel by contacting such metal-containing surfaces in the vehicle fuel injection system.
  • EP-A-1 884 556 teaches detergent additives for diesel fuel compositions.
  • US 3 282 836 A discloses a multifunctional liquid hydrocarbon composition containing a mixture of alkyl succinic acid and polyamine salt thereof.
  • US 4 531 948 A discloses alcohol and gasohol fuels having corrosion inhibiting properties, where the fuels include an amount of the combination of (A) at least one monoalkenyl succinic acid, where the alkenyl group contains about 8 to 30 carbon atoms, and (B) a polyisobutenyl succinimide of an alkylene polyamine.
  • WO 2007/062304 A discloses biodiesel fuel compositions that include at least one antioxidant that increases the oxidative stability of the fuel.
  • Fuel additive compositions and fuel compositions have been discovered which reduce the amount of the metal pick-up seen in the fuel compositions.
  • the present invention provides for such compositions.
  • Also described herein is a method of reducing contaminant metal pick-up, such as zinc pick-up, in fuel compositions.
  • an additive comprising a hydrocarbon substituted succinic acid or a hydrolysed hydrocarbon substituted succinic anhydride, wherein the hydrocarbon is derived from a polyisobutylene having a number average molecular weight of at least 300, to a fuel composition results in the reduction of the amount of oxidative metals pick-up in the fuel composition.
  • the metal, for which pick-up is being reduced include group IV transition metals.
  • the metal is V, Cr, Mn, Fe, Co, Ni, Cu, Zn, or combinations thereof.
  • the metal may be selected from the group consisting of copper, zinc, iron, or combinations thereof.
  • the oxidative metal is zinc.
  • the oxidative metal, for which the tendency of fuel composition to pick up is being reduced may be any of the metals, or groups of metals, described above except iron.
  • the fuel additive composition is defined in claim 1.
  • the present invention also provides a fuel composition
  • a fuel composition comprising: (a) a fuel; and (b) the fuel additive composition described herein above.
  • the present invention involves a fuel additive composition and a fuel composition. Also described herein is a method of reducing metal-pick-up, and in some disclosures zinc pick-up, in a fuel composition, in some disclosures during the operation of an internal combustion engine.
  • composition of the present invention may be used in fuel compositions to reduce their tendency to pick-up metals from surfaces with which they come into contact.
  • the additive compositions of the present invention may also provide comparable and/or improved detergency, specifically improved engine deposit control when they are used in fuel compositions. These characteristics allow for improved engine performance, including but not limited to reductions in injector fouling, reduced deposit-caused engine power losses, reduced deposit-caused fuel economy losses and reduced deposit-caused engine emissions.
  • the substituted hydrocarbon additive of the present invention is a hydrocarbon-substituted succinic acid or a hydrolysed hydrocarbon substituted succinic anhydride.
  • substituted hydrocarbon additives of the present invention when used in the compositions and method described herein, reduce the tendency of fuel compositions in which they are used to pick up metals.
  • the hydrocarbon is derived from a polyalkene which is polyisobutylene.
  • the polyisobutylene is characterized by a Mn (number average molecular weight) of at least 300.
  • Mn number average molecular weight
  • the polyisobutylene may be characterized by an Mn of about 500, or about 700, or about 800, or even about 900 up to about 5000, or to about 2500, or to about 2000, or even to about 1500.
  • n varies between about 300, or about 500, or about 700 up to about 1200 or to about 1300.
  • the polyisobutylene is prepared by conventional procedures.
  • the hydrocarbyl groups are derived from polyalkenes having an n of at least about 1300, or about 1500, or about 1600 up to about 5000, or to about 3000, or to about 2500, or to about 2000, or to about 1800, and the Mw/Mn is from about 1.5 or about 1.8, or about 2, or to about 2.5 to about 3.6, or to about 3.2.
  • the polyalkene is polyisobutylene with a molecular weight of 800 to 1200.
  • the substituted hydrocarbon and/or succinic acylating agents are prepared by reacting the above described polyalkene with an excess of maleic anhydride to provide substituted succinic acylating agents wherein the number of succinic groups for each equivalent weight of substituent group is at least 1.3, or to about 1.5, or to about 1.7, or to about 1.8. The maximum number generally will not exceed 4.5, or to about 2.5, or to about 2.1, or to about 2.0.
  • the polyalkene here may be any of those described above.
  • the hydrocarbon and/or hydrocarbyl group contains an average from about 8, or about 10, or about 12 up to about 40, or to about 30, or to about 24, or to about 20 carbon atoms. In one embodiment, the hydrocarbyl group contains an average from about 16 to about 18 carbon atoms.
  • Succinic acylating agents are prepared by reacting olefins, isomerized olefins or oligomers thereof with unsaturated carboxylic acylating agents, such as itaconic, citraconic, or maleic acylating agents at a temperature of about 160°C, or about 185°C up to about 240°C, or to about 210°C.
  • unsaturated carboxylic acylating agents such as itaconic, citraconic, or maleic acylating agents at a temperature of about 160°C, or about 185°C up to about 240°C, or to about 210°C.
  • Maleic acylating agents are the preferred unsaturated acylating agent.
  • the procedures for preparing the acylating agents are well known to those skilled in the art and have been described for example in U.S. Patent 3,412,111 ; and Ben et al, "The Ene Reaction of Maleic Anhydride With Alkenes", J.C.
  • the polyalkene may be reacted with the carboxylic reagent such that there is at least one mole of carboxylic reagent for each mole of polyalkene that reacts.
  • an excess of carboxylic reagent is used. In one embodiment, this excess is between about 5% to about 25%. In another embodiment, the excess is greater than 40%, or greater than 50%, and even greater than 70%.
  • the conditions, i.e., temperature, agitation and solvents, for forming the hydrocarbyl-substituted succinic acylating agent are known to those in the art.
  • Examples of patents describing various procedures for preparing useful acylating agents include U.S. Patents 3,172,892 (Le Suer et al ); 3,215,707 (Rense ); 3,219,666 (Norman et al ); 3,231,587 (Rense ); 3,912,764 (Palmer ); 4,110,349 (Cohen ); and 4,234,435 (Meinhardt et al ); and U.K. 1,440,219 .
  • the fuel additives of the present invention can be solids, semi-solids, or liquids (oils) depending on the particular alcohol(s) and/or amine(s) used in preparing them.
  • the fuel additives are advantageously soluble and/or stably dispersible in such oleaginous compositions.
  • compositions intended for use in fuels are typically fuel-soluble and/or stably dispersible in a fuel in which they are to be used.
  • fuel-soluble as used in this specification and appended claims does not necessarily mean that all the compositions in question are miscible or soluble in all proportions in all fuels.
  • composition is soluble in a fuel (hydrocarbon, non-hydrocarbon, mixtures, etc) in which it is intended to function to an extent which permits the solution to exhibit one or more of the desired properties.
  • a fuel hydrocarbon, non-hydrocarbon, mixtures, etc
  • solutions it is not necessary that such "solutions" be true solutions in the strict physical or chemical sense. They may instead be micro-emulsions or colloidal dispersions which, for the purpose of this invention, exhibit properties sufficiently close to those of true solutions to be, for practical purposes, interchangeable with them within the context of this invention.
  • the anti-metal pick-up additives of this invention are useful as additives for fuels, in which they may also function as detergents.
  • the fuel additives of the present invention can be present in fuel compositions at 1 to 10,000 ppm (where ppm is calculated on a weight:weight basis).
  • the fuel additive is present in fuel compositions in ranges with lower limits of 1, 3, 5, 10, 50, 100, 150 and 200 ppm and upper limits of 10,000, 7,500, 5,000, and 2,500 where any upper limit may be combined with any lower limit to provide a range for the fuel additive present in the fuel compositions.
  • the additives of the present invention may form salts or other complexes and/or derivatives, when interacting with other components of the compositions in which they are used. Such forms of these additives are also part of the present invention and are include in the embodiment described herein.
  • Some of the succinic acylating agents of the present invention and the processes for making them are disclosed in U.S. Pat. Nos. 5,739,356 ; 5,777,142 ; 5,786,490 ; 5,856,524 ; 6,020,500 ; and 6,114,547 .
  • Other methods of making the hydrocarbyl substituted acylating agent can be found in U.S. Pat. Nos. 5,912,213 ; 5,851,966 ; and 5,885,944 .
  • the succinic acylating agents of the present invention are prepared by the thermal process and/or chlorine free process only, as described in EP0355895 .
  • the fuel additive composition of the present invention comprises the fuel additive described above, an optional solvent and a detergent/dispersant additive other than the fuel additive described above.
  • additive compositions also known as additive concentrates and/or concentrates, may be used to prepare fuel compositions by adding the additive composition to an non-additized fuel.
  • the solvents suitable for use in the present invention include hydrocarbon solvents that provide for the additive composition's compatibility and/or homogeneity and to facilitate their handling and transfer and may include a fuel as described below.
  • the solvent can be an aliphatic hydrocarbon, an aromatic hydrocarbon, an oxygen-containing composition, or a mixture thereof.
  • the flash point of the solvent is generally about 25°C or higher.
  • the hydrocarbon solvent is an aromatic naphtha having a flash point above 62°C or an aromatic naphtha having a flash point of 40°C or a kerosene with a 16% aromatic content having a flash point above 62°C.
  • Aliphatic hydrocarbons include various naphtha and kerosene boiling point fractions that have a majority of aliphatic components.
  • Aromatic hydrocarbons include benzene, toluene, xylenes and various naphtha and kerosene boiling point fractions that have a majority of aromatic components.
  • Alcohols are usually aliphatic alcohols having about 2 to 10 carbon atoms and include ethanol, 1-propanol, isopropyl alcohol, 1-butanol, isobutyl alcohol, amyl alcohol, and 2-methyl-1-butanol.
  • the oxygen containing composition can include an alcohol, a ketone, an ester of a carboxylic acid, a glycol and/or a polyglycol, or a mixture thereof.
  • the solvent in an embodiment of the invention will be substantially free of to free of sulphur having a sulphur content in several instances that is below 50 ppm, 25 ppm, below 18 ppm, below 10 ppm, below 8 ppm, below 4 ppm, or below 2 ppm.
  • the solvent can be present in the additive concentrate composition at 0 to 99 percent by weight, and in other instances at 3 to 80 percent by weight, or 10 to 70 percent by weight.
  • the friction modifier of the present invention and the additional performance additives taken separately or in combination can be present in the additive concentrate composition at 0.01 to 100 percent by weight, and in other instances can be present at 0.01 to 95 percent by weight, at 0.01 to 90 percent by weight, or at 0.1 to 80 percent by weight.
  • the additive concentrate may comprise the fuel additive of the present invention and be substantially free of any additional solvent.
  • the additive concentrate containing the fuel additive of the present invention is neat, in that it does not contain any additional solvent added to improve the material handling characteristics of the concentrate, such as its viscosity.
  • the fuel composition, fuel additive concentrate, and/or the fuel additive itself are substantially free of or free of at least one member selected from the group consisting of sulphur, phosphorus, sulfated ash, and combinations thereof, and in other embodiments the fuel composition contains less than 50 ppm, 20 ppm, less than 15 ppm, less than 10 ppm, or less than 1 ppm of any one or all of these members.
  • the additive concentrate composition, or a fuel composition containing the fuel additive of the present invention may be prepared by admixing or mixing the components of the composition at ambient to elevated temperatures usually up to 60°C until the composition is homogeneous.
  • detergent/dispersant additive along with additional performance additives which may be included in the additive compositions of the present invention are described below.
  • the fuel composition of the present invention comprises the fuel additive described above and a liquid fuel, and is useful in fueling an internal combustion engine.
  • a fuel may also be a component of the additive compositions described above.
  • the fuels suitable for use in the present invention include any commercially available fuels, and in some embodiments any commercially available diesel fuels and/or biofuels. In other embodiments, the fuels suitable for use in the present invention include any commercially available fuels which are susceptible to metal pick up, and in some embodiments any commercially available diesel fuels and/or biofuels susceptible to metal pick up.
  • the fuels suitable for use in the present invention are any fuels, or any diesel fuels and/or biofuels, which are susceptible to pick up of oxidative metals to a level greater than 0.5 ppm when left in contact for an extended period of time with solid materials containing said metal.
  • the exposure time involved is greater than 72 hours, greater than 48 hours, or greater than 24 hours.
  • the present invention includes fuel compositions and fuel additive concentrate compositions which may contain fuel.
  • the fuel used in these compositions may or may not exhibit a propensity to pick up oxidative metal, and may in fact be any of the fuels described in this application or combinations thereof.
  • the fuel used in these compositions need not be the same fuel to which the additive of the present invention may be added in the methods described herein. That is, the additive of the present invention may be present in a composition that also comprises a fuel. This fuel may or may not exhibit a propensity to pick up oxidative metal.
  • the additive-containing composition may then be added to a fuel and/or fuel additive composition.
  • the identity of the fuel present in this composition is independent of the identity of the optional fuel component in the additive containing composition.
  • the oxidative metal pick-up propensity of the fuel and/or fuel additive composition may be a result of the properties of the fuel and/or the properties of one or more of the additives present in the fuel and /or additive composition.
  • the addition of the additive-containing compositions, as described in the method and compositions of the present invention result in a reduction of the oxidative metal pick-up propensity of the fuel and/or fuel additive compositions.
  • Fuels suitable for use in the present invention are not overly limited. Generally, suitable fuels are normally liquid at ambient conditions e.g., room temperature (20 to 30°C).
  • the liquid fuel can be a hydrocarbon fuel, a non-hydrocarbon fuel, or a mixture thereof.
  • the hydrocarbon fuel can be a petroleum distillate, including a gasoline as defined by ASTM specification D4814, or a diesel fuel, as defined by ASTM specification D975.
  • the liquid fuel is a gasoline, and in another embodiment the liquid fuel is a non-leaded gasoline.
  • the liquid fuel is a diesel fuel.
  • the hydrocarbon fuel can be a hydrocarbon prepared by a gas to liquid process to include for example hydrocarbons prepared by a process such as the Fischer-Tropsch process.
  • the fuel used in the present invention is a diesel fuel, a biodiesel fuel, or combinations thereof.
  • the non-hydrocarbon fuel can be an oxygen containing composition, often referred to as an oxygenate, which includes an alcohol, an ether, a ketone, an ester of a carboxylic acid, a nitroalkane, or a mixture thereof.
  • the non-hydrocarbon fuel can include for example methanol, ethanol, methyl t-butyl ether, methyl ethyl ketone, transesterified oils and/or fats from plants and animals such as rapeseed methyl ester and soybean methyl ester, and nitromethane.
  • hydrocarbon and non-hydrocarbon fuels can include, for example, gasoline and methanol and/or ethanol, diesel fuel and ethanol, and diesel fuel and a transesterified plant oil such as rapeseed methyl ester and other bio-derived fuels.
  • the liquid fuel is an emulsion of water in a hydrocarbon fuel, a non-hydrocarbon fuel, or a mixture thereof.
  • the liquid fuel can have a sulphur content on a weight basis that is 5000 ppm or less, 1000 ppm or less, 300 ppm or less, 200 ppm or less, 30 ppm or less, or 10 ppm or less.
  • the liquid fuel of the invention is present in a fuel composition in a major amount that is generally greater than 95% by weight, and in other embodiments is present at greater than 97% by weight, greater than 99.5% by weight, or greater than 99.9% by weight.
  • the additive compositions and fuel compositions of the present invention can further comprise one or more additional performance additives.
  • Additional performance additives can be added to a fuel composition depending on several factors to include the type of internal combustion engine and the type of fuel being used in that engine, the quality of the fuel, and the service conditions under which the engine is being operated.
  • the additional performance additives described herein may increase the tendency of a fuel composition to pick-up metals such as zinc.
  • the use of the present invention in such situations can reduce and/or eliminate this impact of the additional additives.
  • the additional performance additives can include: an antioxidant such as a hindered phenol or derivative thereof and/or a diarylamine or derivative thereof; a corrosion inhibitor; and/or a detergent/dispersant additive, other than the fuel additive of the present invention, such as a polyetheramine or nitrogen containing detergent, including but not limited to PIB amine dispersants, quaternary salt dispersants, and succinimide dispersants including derivates of succinimide dispersants such as quaternary ammonium salts thereof .
  • an antioxidant such as a hindered phenol or derivative thereof and/or a diarylamine or derivative thereof
  • a corrosion inhibitor such as a corrosion inhibitor
  • a detergent/dispersant additive other than the fuel additive of the present invention, such as a polyetheramine or nitrogen containing detergent, including but not limited to PIB amine dispersants, quaternary salt dispersants, and succinimide dispersants including derivates of succinimide dispersants such as quaternary ammoni
  • the additional performance additives may also include: a cold flow improver such as an esterified copolymer of maleic anhydride and styrene and/or a copolymer of ethylene and vinyl acetate; a foam inhibitor and/or antifoam agent such as a silicone fluid; a demulsifier such as a polyalkoxylated alcohol; a lubricity agent such as a fatty carboxylic acid; a metal deactivator such as an aromatic triazole or derivative thereof, including but not limited to benzotriazole; and/or a valve seat recession additive such as an alkali metal sulfosuccinate salt.
  • a cold flow improver such as an esterified copolymer of maleic anhydride and styrene and/or a copolymer of ethylene and vinyl acetate
  • a foam inhibitor and/or antifoam agent such as a silicone fluid
  • a demulsifier such as a polyalkoxylated alcohol
  • Suitable antifoams also include organic silicones such as polydimethyl siloxane, polyethylsiloxane, polydiethylsiloxane, polyacrylates and polymethacrylates, trimethyl-triflouro-propylmethyl siloxane and the like.
  • the additional additives may also include a biocide; an antistatic agent, a deicer, a fluidizer such as a mineral oil and/or a poly(alpha-olefin) and/or a polyether, and a combustion improver such as an octane or cetane improver.
  • the additional performance additives which may be present in the fuel additive compositions and fuel compositions of the present invention, also include di-ester, di-amide, ester-amide, and ester-imide friction modifiers prepared by reacting a dicarboxylic acid (such as tartaric acid) and/or a tricarboxylic acid (such as citric acid), with an amine and/or alcohol, optionally in the presence of a known esterification catalyst.
  • These friction modifiers often derived from tartaric acid, citric acid, or derivatives thereof, may be derived from amines and/or alcohols that are branched so that the friction modifier itself has significant amounts of branched hydrocarbyl groups present within it structure. Examples of a suitable branched alcohols used to prepare these friction modifiers include 2-ethylhexanol, isotridecanol, Guerbet alcohols, or mixtures thereof.
  • the additional performance additives may comprise a high TBN nitrogen containing dispersant, such as a succinimide dispersant, that is the condensation product of a hydrocarbyl-substituted succinic anhydride with a poly(alkyleneamine).
  • a succinimide dispersant that is the condensation product of a hydrocarbyl-substituted succinic anhydride with a poly(alkyleneamine).
  • Succnimide dispersants are very well known in the art of lubricant formulation. Such molecules are commonly derived from reaction of an alkenyl acylating agent with a polyamine, and a wide variety of linkages between the two moieties is possible including a simple imide structure as well as a variety of amides and quaternary ammonium salts. Succinimide dispersants are more fully described in U.S. Patents 4,234,435 and 3,172,892 . Such materials may also contain ester linkages or ester functionality.
  • Mannich bases are materials which are formed by the condensation of a higher molecular weight, alkyl substituted phenol, an alkylene polyamine, and an aldehyde such as formaldehyde. Such materials are described in more detail in U.S. Patent 3,634,515 .
  • nitrogen-containing dispersants include polymeric dispersant additives, which are generally hydrocarbon-based polymers which contain nitrogen-containing polar functionality to impart dispersancy characteristics to the polymer.
  • An amine is typically employed in preparing the high TBN nitrogen-containing dispersant.
  • One or more poly(alkyleneamine)s may be used, and these may comprise one or more poly(ethyleneamine)s having 3 to 5 ethylene units and 4 to 6 nitrogens.
  • Such materials include triethylenetetramine (TETA), tetraethylenepentamine (TEPA), and pentaethylenehexamine (PEHA).
  • TETA triethylenetetramine
  • TEPA tetraethylenepentamine
  • PEHA pentaethylenehexamine
  • Such materials are typically commercially available as mixtures of various isomers containing a range number of ethylene units and nitrogen atoms, as well as a variety of isomeric structures, including various cyclic structures.
  • the poly(alkyleneamine) may likewise comprise relatively higher molecular weight amines known in the industry as ethylene amine still bottoms.
  • the fuel additive composition of the invention includes a detergent/dispersant additive, other than the fuel additive described herein which is a quaternary salt comprising the reaction product of: (i) at least one compound selected from the group consisting of: (a) the condensation product of a hydrocarbyl-substituted acylating agent and a compound having an oxygen or nitrogen atom capable of condensing with said acylating agent and said condensation product further having a tertiary amino group; (b) a polyalkene-substituted amine having at least one tertiary amino group; and (c) a Mannich reaction product having a tertiary amino group, said Mannich reaction product being prepared from the reaction of a hydrocarbyl-subsituted phenol, an aldehyde, and an amine; and (ii) a quaternizing agent suitable for converting the tertiary amino group of com- pound (i) to a quaternary nitrogen, wherein the
  • the quaternary salt comprises the reaction product of (i) at least one compound selected from the group consisting of: a polyalkene-substituted amine having at least one tertiary amino group and/or a Mannich reaction product having a tertiary amino group; and (ii) a quaternizing agent.
  • the quaternary salt comprises the reaction product of (i) the reaction product of a succinic anhydride and an amine; and (ii) a quaternizing agent.
  • the succinic anhydride may be derived from polyisobutylene and an anhydride, where the polyisobutylene has a number average molecular weight of about 800 to about 1600.
  • the succinic anhydride is chlorine free.
  • a monounsaturated carboxylic acid reactant such as (1) monounsaturated C 4 to C 10 di
  • Olefin polymers for reaction with the monounsaturated carboxylic acids can include polymers comprising a major molar amount of C 2 to C 20 , e.g. C 2 to C 5 monoolefin.
  • Such olefins include ethylene, propylene, butylene, isobutylene, pentene, octene-1, or styrene.
  • the polymers can be homopolymers such as polyisobutylene, as well as copolymers of two or more of such olefins such as copolymers of; ethylene and propylene; butylene and isobutylene; propylene and isobutylene.
  • copolymers include those in which a minor molar amount of the copolymer monomers e.g., 1 to 10 mole % is a C 4 to C 18 diolefin, e.g., a copolymer of isobutylene and butadiene; or a copolymer of ethylene, propylene and 1,4-hexadiene.
  • a minor molar amount of the copolymer monomers e.g., 1 to 10 mole % is a C 4 to C 18 diolefin, e.g., a copolymer of isobutylene and butadiene; or a copolymer of ethylene, propylene and 1,4-hexadiene.
  • At least one R of formula (I) is derived from polybutene, that is, polymers of C 4 olefins, including 1-butene, 2-butene and isobutylene.
  • C 4 polymers can include polyisobutylene.
  • at least one R of formula (I) is derived from ethylene-alpha olefin polymers, including ethylene-propylene-diene polymers.
  • Ethylene-alpha olefin copolymers and ethylene-lower olefin-diene terpolymers are described in numerous patent documents, including European patent publication EP0279863 and the following United States patents: 3,598,738 ; 4,026,809 ; 4,032,700 ; 4,137,185 ; 4,156,061 ; 4,320,019 ; 4,357,250 ; 4,658,078 ; 4,668,834 ; 4,937,299 ; 5,324,800 .
  • the vinylidene content of formula (I) can comprise at least about 30 mole % vinylidene groups, at least about 50 mole % vinylidene groups, or at least about 70 mole % vinylidene groups.
  • Such material and methods for preparing them are described in U.S. Pat. Nos. 5,071,919 ; 5,137,978 ; 5,137,980 ; 5,286,823 , 5,408,018 , 6,562,913 , 6,683,138 , 7,037,999 and U.S. Publication Nos.
  • 20040176552A1 , 20050137363 and 20060079652A1 are commercially available by BASF, under the tradename GLISSOPAL® and by Texas Petrochemicals LP, under the tradename TPC 1105TM and TPC 595TM.
  • the hydrocarbyl substituted acylating agent can be made from the reaction of at least one carboxylic reactant represented by the following formulas: R 4 C O R 5 n C O ) R 4 and wherein each R 4 is independently H or a hydrocarbyl group, and each R 5 is a divalent hydrocarbylene group and n is 0 or 1 with any compound containing an olefin bond as represented by formula (I).
  • carboxylic reactant represented by the following formulas: R 4 C O R 5 n C O ) R 4 and wherein each R 4 is independently H or a hydrocarbyl group, and each R 5 is a divalent hydrocarbylene group and n is 0 or 1 with any compound containing an olefin bond as represented by formula (I).
  • Compounds and the processes for making these compounds are disclosed in U.S. Pat. Nos. 5,739,356 ; 5,777,142 ; 5,786,490 ; 5,856,524 ; 6,020,500 ; and
  • the compound having an oxygen or nitrogen atom capable of condensing with the acylating agent and further having a tertiary amino group can be represented by the following formulas: wherein X is a alkylene group containing about 1 to about 4 carbon atoms; and wherein each R 6 is independently a hydrocarbyl group, and R 6' can be hydrogen or a hydrocarbyl group. wherein X is a alkylene group containing about 1 to about 4 carbon atoms; and wherein each R 7 is independently a hydrocarbyl group.
  • Examples of the nitrogen or oxygen contain compounds capable of condensing with the acylating agent and further having a tertiary amino group can include but are not limited to: ethylenediamine, 1,2-propylenediamine, 1,3-propylene diamine, the isomeric butylenediamines, pentanediamines, hexanediamines, heptanediamines, diethylenetriamine, dipropylenetriamine, dibutylenetriamine, triethylenetetraamine, tetraethylenepentaamine, pentaethylenehexaamine, hexamethylenetetramine, and bis(hexamethylene) triamine, the diaminobenzenes, the diaminopyridines or mixtures thereof.
  • nitrogen or oxygen contain compounds which may be alkylated to contain a tertiary amino group may also used.
  • the nitrogen or oxygen contain compounds capable of condensing with the acylating agent after being alkylated to having a tertiary amino group can include but are not limited to: dimethylaminopropylamine, N,N-dimethyl-aminopropylamine, N,N-diethylaminopropylamine, N,N-dimethyl-aminoethylamine or mixtures thereof.
  • the nitrogen or oxygen containing compounds capable of condensing with the acylating agent and further having a tertiary amino group can further include aminoalkyl substituted heterocyclic compounds such as 1-(3-aminopropyl)imidazole and 4-(3-aminopropyl)morpholine, 1-(2-aminoethyl)piperidine, 3,3-diamino-N-methyldipropylamine, 3'3-aminobis(N,N-dimethylpropylamine).
  • aminoalkyl substituted heterocyclic compounds such as 1-(3-aminopropyl)imidazole and 4-(3-aminopropyl)morpholine, 1-(2-aminoethyl)piperidine, 3,3-diamino-N-methyldipropylamine, 3'3-aminobis(N,N-dimethylpropylamine).
  • alkanolamines including but not limited to triethanolamine, N,N-dimethylaminopropanol, N,N-diethylaminopropanol, N,N-diethylaminobutanol, N,N,N-tris(hydroxyethyl)amine, or mixtures thereof.
  • the additional performance additives can each be added directly to the additive and/or the fuel compositions of the present invention, but they are generally mixed with the fuel additive to form an additive composition, or concentrate, which is then mixed with fuel to result in a fuel composition.
  • the additive concentrate compositions are described in more detail above.
  • these additional performance additives described above may be the cause and/or a contributing factor to the propensity of a fuel to pick up oxidative metal in the fuel compositions in which they are used.
  • the additives described above may have no impact on the metal pick-up properties of the fuel composition in which they are used. In either case, the additive compositions and methods of the present invention can counter the potential effect of these additives and reduce the tendency of fuel compositions to pick-up metals, whether that tendency is caused, exacerbated by, or not significantly changes by, the additional performance additives described above.
  • the invention is useful for a liquid fuel and/or for the operation of an internal combustion engine, including either compression ignition engines or spark ignited engines.
  • the internal combustion engine includes 2-stroke or 4-stroke engines fuelled with gasoline, diesel, a natural gas, a mixed gasoline/alcohol or any of the fuels described in the sections above.
  • the compression ignition engines include both light duty and heavy duty diesel engines.
  • the spark ignited engines include port and direct injection gasoline engines.
  • the invention is useful in additive compositions in that the fuel additive and methods described above reduce metal pick-up in fuel compositions, thus preventing elevated levels of metals, such as zinc, in the fuel.
  • the additive compositions of the present invention may be used in a lubricating composition such that the additives are present in the lubricating system of the engine.
  • the additives may also enter the combustion chamber of the engine during operation of the engine by the transfer of small amounts of the additive containing lubricating composition to the combustion chamber due to a phenomenon referred to as "blow by" where the lubricating composition, and in this case the additive composition, pass around the piston heads inside the cylinder, moving from the lubricating system of the engine into the combustion chamber.
  • compositions of the present invention provide a reduction in metal pick-up of at least 5%, at least 20% or even at least 50%. In some of these embodiments the reduction is in regards to the 7 day and/or 14 day result of the test procedure used in the examples below. In other embodiments the compositions of the present invention ensure the metal level of a fuel composition does not rise above 10 ppm, 5 ppm, 1 ppm, 0.5 ppm, 0.3 ppm or even 0.1 ppm of metal content. In some of these embodiments the reduction is in regards to the 7 day and/or 14 day result of the test procedure used in the examples below.
  • compositions of the present invention when evaluated at 7 days by the test described in the examples below, provide a reduction in metal levels of at least 30%, or at least 80% and/or ensure metal levels to not rise above 1 ppm. In some embodiments, the compositions of the present invention, when evaluated at 14 days by the test described in the examples below, provide a reduction in metal levels of at least 40%, or at least 80% and/or ensure metal levels to not rise above 8 ppm, or even 1 ppm.
  • the present invention includes the use of the substituted hydrocarbon and/or hydrocarbyl substituted acylating agents described herein as additives in fuel compositions, as well as the additive itself and the fuel and fuel additive compositions containing said additive.
  • the additives of the present invention may be delivered to the fuel compositions and/or fuel additive compositions in any of the means known in the art and the timing of the additive is not limited.
  • the additive of the present invention may be added to a fuel composition before, during, or after the production and/or blending of the fuel and/or additive composition.
  • the additive of the invention may be added to fuel and/or additive composition before, during, or after the addition of other performance additives which may be used in the compositions.
  • the additive of the invention may be added as a top treat to fuel and/or additive compositions or be incorporated into the production and/or distribution of the fuel and/or additive compositions in which it is used.
  • hydrocarbyl substituent or “hydrocarbyl group” is used in its ordinary sense, which is well-known to those skilled in the art. Specifically, it refers to a group having a carbon atom directly attached to the remainder of the molecule and having predominantly hydrocarbon character.
  • hydrocarbyl groups include: hydrocarbon substituents, that is, aliphatic (e.g., alkyl or alkenyl), alicyclic (e.g., cycloalkyl, cycloalkenyl) substituents, and aromatic-, aliphatic-, and alicyclic-substituted aromatic substituents, as well as cyclic substituents wherein the ring is completed through another portion of the molecule (e.g., two substituents together form a ring); substituted hydrocarbon substituents, that is, substituents containing non-hydrocarbon groups which, in the context of this invention, do not alter the predominantly hydrocarbon nature of the substituent (e.g., halo (especially chloro and fluoro), hydroxy, alkoxy, mercapto, alkylmercapto, nitro, nitroso, and sulfoxy); hetero substituents, that is, substituents which, while having a predominantly hydrocarbon character, in the context of this invention
  • Heteroatoms include sulfur, oxygen, nitrogen, and encompass substituents as pyridyl, furyl, thienyl and imidazolyl.
  • substituents as pyridyl, furyl, thienyl and imidazolyl.
  • no more than two, preferably no more than one, non-hydrocarbon substituent will be present for every ten carbon atoms in the hydrocarbyl group; typically, there will be no non-hydrocarbon substituents in the hydrocarbyl group.
  • the materials described above may interact in the final formulation, so that the components of the final formulation may be different from those that are initially added.
  • metal ions of, e.g., a detergent
  • the acylating agents and/or substituted hydrocarbon additives of the present invention may form salts or other complexes and/or derivatives, when interacting with other components of the compositions in which they are used.
  • the products formed thereby, including the products formed upon employing the composition of the present invention in its intended use, may not be susceptible of easy description. Nevertheless, all such modifications and reaction products are included within the scope of the present invention; the present invention encompasses the composition prepared by admixing the components described above.
  • Example Set 1 Fuel treated with a succinimide dispersant .
  • An EU certification diesel fuel known as RF-06
  • RF-06 is treated with 200 ppm of a commercially available succinimide dispersant.
  • Seven 500 ML graduated cylinder are prepared for testing by placing in each a 4 cm section of a Goodfellow Zn rod ZN007902, having a length of 200 mm and a diameter of 2.0 mm. The weight of each rod section is recorded and an amount of fuel is added to each cylinder so that the combined mixture of fuel composition and zinc rod is 1 % by weight zinc.
  • Each cylinder is charged with a slightly different amount of fuel to ensure the zinc content of each sample is the same.
  • One of the seven samples (1-1) is kept as a baseline.
  • the other seven samples are each independently treated at 200 ppm with an additional additive, as shown the in the table below.
  • Table 1 -Additional Additives Added to Test Samples Sample Additional Additive (at 200ppm in the Fuel) 1-1 None -Baseline 1-2 ⁇ 1000 MW Hydrolyzed PIBSA- Hydrolyzed polyisobutylene succinic anhydride wherein the polyisobutylene has a number average molecular weight of about 1000. 1-3 ⁇ 550 MW PIBSA- Polyisobutylene succinic anhydride wherein the polyisobutylene has a number average molecular weight of about 550.
  • Pentasize 68F A commercially available succinic anhydride derived from C16-C18 polyolefin. 1-5 Dimer Acid (hydrogenated) - A commercially available acid product containing two carboxyl groups, purchased from Aldrich under catalog ID 432369-1L.
  • polyisobutylene succinic anhydride wherein the polyisobutylene has a number average molecular weight of about 1000, which is not hydrolyzed 1-7 ⁇ 1000 MW Mono Esterified PIBSA- Esterified polyisobutylene succinic anhydride wherein the polyisobutylene has a number average molecular weight of about 1000, which is not hydrolyzed, and which is esterified with 1 equiv of n-butanol.
  • Example Set 1 The containers are stored at ambient conditions in a dark test location for 14 days. Each sample is tested at the 7 day mark and the 14 day mark by Inductively Coupled Plasma (ICP) analysis to determine zinc content.
  • ICP Inductively Coupled Plasma
  • Example Set 2 Biodiesel .
  • Example set 1 is repeated except that the succinimide dispersant treated diesel fuel is replaced with B100, a commercially available biodiesel fuel.
  • each additional additive in samples 2-2 to 2-7 are present in the fuel composition at 500 ppm. Samples 2-1 to 2-7 are tested in the same manner described above and the results are summarized in the table below. Table 3 - Results from Example Set 2.

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Claims (2)

  1. Composition additive pour carburant comprenant :
    (a) un solvant facultatif ;
    (b) un additif comprenant un acide succinique substitué par un hydrocarbure ou un anhydride succinique substitué par un hydrocarbure hydrolysé ;
    ledit hydrocarbure étant dérivé d'un polyisobutylène ayant un poids moléculaire moyen en nombre d'au moins 300 ; et caractérisée par
    (c) un additif détergent/dispersant, différent de l'additif (b), qui est un sel quaternaire comprenant le produit de réaction de :
    (i) au moins un composé choisi dans le groupe constitué par :
    (a) le produit de condensation d'un agent acylant à substitution hydrocarbyle et d'un composé ayant un atome d'oxygène ou d'azote susceptible de se condenser avec ledit agent acylant et ledit produit de condensation ayant en outre un groupe amino tertiaire ;
    (b) une amine substituée par un polyalcène ayant au moins un groupe amino tertiaire ; et
    (c) un produit de réaction de Mannich ayant un groupe amino tertiaire, ledit produit de réaction de Mannich étant préparé par la réaction d'un phénol à substitution hydrocarbyle, d'un aldéhyde, et d'une amine; et
    (ii) un agent de quaternisation approprié pour transformer le groupe amino tertiaire du composé (i) en un azote quaternaire, l'agent de quaternisation étant choisi dans le groupe constitué par les sulfates de dialkyle, les halogénures de benzyle, les carbonates à substitution hydrocarbyle ; les époxydes d'hydrocarbyle en combinaison avec un acide ou les mélanges de ceux-ci.
  2. Composition de carburant comprenant :
    (a) un carburant ; et
    (b) la composition additive pour carburant selon la revendication 1.
EP16185196.9A 2008-10-10 2009-10-01 Additifs pour carburants permettant de réduire l'arrachement de métal Active EP3127992B1 (fr)

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BRPI0920665B1 (pt) 2022-09-20
CA3025740C (fr) 2021-11-09
CN106753620A (zh) 2017-05-31
EP2385977B1 (fr) 2016-08-24
KR101722272B1 (ko) 2017-03-31
US20110219674A1 (en) 2011-09-15
JP6046347B2 (ja) 2016-12-14
JP2017101259A (ja) 2017-06-08
JP2012505291A (ja) 2012-03-01
PL2385977T5 (pl) 2020-07-27
PL2385977T3 (pl) 2017-02-28
DK3127992T3 (en) 2019-03-18
AU2017251765A1 (en) 2017-11-16
EP3127992A1 (fr) 2017-02-08
AU2009302649A1 (en) 2010-04-15
CN102239238A (zh) 2011-11-09
CA2739432A1 (fr) 2010-04-15
WO2010042378A1 (fr) 2010-04-15
CA2739432C (fr) 2018-12-04
CA3025740A1 (fr) 2010-04-15
EP2385977A1 (fr) 2011-11-16
BR122018075929B1 (pt) 2022-09-27
AU2016204848A1 (en) 2016-07-28
EP2385977B2 (fr) 2020-01-01
KR20110069846A (ko) 2011-06-23
AU2017251765B2 (en) 2019-05-09
EP3486300A1 (fr) 2019-05-22
JP2015147942A (ja) 2015-08-20
PL3127992T3 (pl) 2019-06-28
BRPI0920665A2 (pt) 2018-06-26
JP2013234336A (ja) 2013-11-21
DK2385977T3 (en) 2016-10-17
SG194415A1 (en) 2013-11-29
DK2385977T4 (da) 2020-03-09

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