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, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
  • 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, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
  • 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, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
  • C10L10/00—Use of additives to fuels or fires for particular purposes
  • C10L10/06—Use of additives to fuels or fires for particular purposes for facilitating soot removal

Definitions

• the present invention relates to solid or pasty additive compositions for fuels.
• Carburetors and intake systems of gasoline engines, but also injection systems for fuel metering in petrol and diesel engines are increasingly contaminated.
• the Impurities are caused by dust particles from the Air sucked in by the engine, unburned hydrocarbon residues from the combustion chamber and the ventilation gases led into the carburetor from the crankcase.
• Such detergents belonging to a variety of chemical substance classes can generally come in combination with carrier oils and possibly other additive components, such as. Corrosion inhibitors and demulsifiers, for use.
• These liquid additive formulations are usually used appropriate metering devices added to the fuel where they take effect.
• cases also occur during storage and distribution of fuels where no suitable Dosing options for liquid fuel additives available is.
• the existence of fuel additives would be more solid Form that dissolves in fuels, helpful and cheap. You would see a significant improvement over liquid additives represent because of the technical and costly effort a dosing device is not required.
• DE-A-44 31 409 is a pumpable fuel additive paste known, which can be metered directly into the fuel supply line is.
• the paste has an additive content of approximately 5 to 35% by weight. and contains 10 to 60 wt .-% oils, fats and / or waxes as well 1 to 10% by weight of a thickening agent, e.g. Bentonite.
• a thickening agent e.g. Bentonite.
• the disadvantage of such fuel additive formulations is poor handling of the pasty product, as well as the high technical effort for metering the paste into the fuel.
• CA-A-2 143 140 describes solid additives for internal combustion engines known.
• the solid formulation is made by a liquid additive on a porous, solid, fuel-soluble Carrier, preferably a naphthalene-based carrier, adsorbed and the pores of the carrier after adsorption of the additive closes.
• a disadvantage of these solid additives is their cumbersome Production method.
• Another serious one The disadvantage is the limited adsorption capacity of the used Naphthalene pellets. For example, it describes that a 1.6 g pellet is typically only an amount of additive can accommodate a third of its volume.
• Embodiment provides a pelletized additive formulation which have an additive content of about 25 to about 75 % By weight based on the weight of the composition.
• the Additive is in a solidifying agent dispersible in fuel, such as B. paraffin wax, and the additive pellets are sealed on their surface.
• Examples of preferred additives are hydrogenated polybutenes with a molecular weight from about 700 to about 1100 and reaction products from one or several vegetable oils and a polyethyleneimine, in addition derivatized with a sulfonic acid.
• US-A-4 639 255 describes continue solid fuel additive formulations that as Solidifying agent an aromatic hydrocarbon, such as e.g.
• Another solid additive formulation contains one Solidification agent also as a long-chain alcohol Modifier for increasing the melting point.
• Another solid additive formulation has an additive content of about 5 to 40 % By weight, the additive pellets being a coating of foamed Have paraffin wax.
• US-A-4 describes 639 255 additive formulations with foamed carrier. All the solid additive formulations described above are related on their additive content and / or because of their relatively complicated Manufacturing still not entirely satisfactory.
• highly concentrated, solid or pasty detergent additive formulations are provided become.
• This object is surprisingly achieved through provision one that is non-liquid, solid or non-liquid under normal conditions pasty fuel additive composition, which in particular in Gasoline is usable, preferably from a homogeneous Mixture of a solid, fuel-soluble or dispersible Solidifying agent and at least one liquid fuel additive, the composition, based on their total weight, an additive content of more than 40 to about 99% by weight, preferably about 50 to 95% by weight, e.g. about 60 to 90 % By weight or approximately 75 to 90% by weight, characterized in that that the liquid fuel additive is at least one among polyether amines and polyalkenamines and functional derivatives thereof selected detergent additive in a proportion of more than about 10% by weight, based on the total weight of the composition, contains.
• the present invention relates to a fuel additive composition from a homogeneous mixture of a solid, in Fuel-soluble solidifying agent and at least one liquid fuel additive, the composition based an additive content of more than about 40 on their total weight Wt .-% to about 99 wt .-%, solid under normal conditions or pasty, characterized in that the liquid Fuel additive at least one of polyether amines and polyalkenamines and functional derivatives thereof, detergent additive selected in a proportion of more than about 10% by weight on the total weight of the composition.
• the additive compositions according to the invention have the advantage that they have a clear due to their increased additive content have improved performance. Furthermore, they own the advantage that they are easy to manufacture by using the or the additives e.g. in a melt of at ambient temperature solid solidifying agent incorporated, the mixture homogenized, if necessary, allow to cool and suitably packaged. It is not necessary to add the solidifying agent still foam the z. B. processed into pellets, solid formulation to undergo a surface treatment.
• the invention Formulations also offer the advantage of no pumping device can be used for fuel additive to be able to. Furthermore, the dosage level can be adjusted more easily and the viscosity requirements for the additive product are easier to accomplish.
• Has a "solid” or “pasty” composition according to the invention a melting range or melting point in the range of about 25-95 ° C, preferably about 30-90 ° C, especially about 35 - 70 ° C, e.g. about 35 to 50 ° C.
• a "homogeneous" composition exists if there are no phase boundaries or areas of segregation visually in the solid according to the invention are recognizable.
• the inventive Compositions as the main additive component at least one Detergent additive.
• such additives are used which both the formation of deposits on the intake valves prevent as well as remove already formed deposits. They therefore show both a keep-clean effect and one clean-up effect.
• Additives suitable according to the invention are selected from polyether amines, such as, for example, poly-C 2 -C 6 -alkylene oxide amines, and polyalkenamines, such as, for example, poly-C 2 -C 6 -alkenamine, and functional derivatives thereof.
• Particularly preferred detergent additives are selected from polyisobutenamines and functional derivatives thereof.
• the polyisobutene content of such additives can be based, for example, on the C 4 cut with a high polyisobutene content, typically obtained in the case of thermal or catalytic cracking.
• B. be produced by cationic polymerization.
• the polyisobutene part can also from mixtures of n-butene and i-butene, for. B.
• a functional derivative is understood to mean chemically modified detergent additives which show a cleaning effect of a detergent additive which is qualitatively comparable but not necessarily completely identical in terms of level or strength.
• the detergent additives preferably used according to the invention are known per se from the prior art. Polyisobutenamines are described, for example, in EP-A-0 244 616 and EP-A-0 578 323. Further detergent additives suitable according to the invention are described, for example, in European Patent Applications EP-A-0 277 345, 0 356 725, 0 476 485, 0 484 736, 0 539 821, 0 543 225, 0 548 617, 0 561 214, 0 567 810 and 0 568 873; in German patent applications DE-A-39 42 860, 43 09 074, 43 09 271, 43 13 088, 44 12 489, 0 44 25 834, 195 25 938, 196 06 845, 196 06 846, 196 15 404, 196 06 844, 196 16 569, 196 18 270 and 196 14 349; and in WO-A-96/03479. Particularly useful liquid detergent additives are sold by BASF AG
• Detergent additives used according to the invention in particular those preferred polyisobutenamine additives used usually have a number average molecular weight Mn in the range of about 150 to about 5000, preferably about 500 to about 2000, in particular about 800 to 1500 g per mole.
• the content of detergent additive e.g. Polyisobutenamines and the functional derivatives thereof is about 20 to 100 % By weight, preferably more than 30% by weight, in particular more than 40 % By weight, such as. B. about 45 to 70 wt .-%, based on the total weight of those contained in the composition according to the invention
• Additives Is the detergent additive component in one Share before, one speaks in the context of the present invention of a "major additive component" of the composition.
• the detergent additive fraction e.g. more than about 10% by weight, e.g. 15 to 30% by weight or more, e.g. about 40 up to 99% by weight or 50 to 95% by weight, or 60 to 90% by weight or 75 to 90% by weight.
• detergent additive In addition to the detergent additive, other customary ones may be used Contain fuel additives and additives such as Corrosion inhibitors, Demulsifiers and dyes. Furthermore, if necessary Carrier oils can be added.
• mineral carrier oils examples include synthetic carrier oils and Mixtures of which with the additive (s) used and the Are fuel compatible.
• Suitable mineral carrier oils are fractions, such as kerosene, that occur during oil processing or naphtha, brightstock or mineral oils with viscosity in the range SN 500 - 900; but also aromatic hydrocarbons, paraffinic hydrocarbons and alkoxyalkanols.
• Suitable synthetic carrier oils are polyolefins, (poly) esters, (poly) alkoxylates, and in particular aliphatic polyethers, aliphatic polyetheramines, alkylphenol-started polyethers and alkylphenol-started polyetheramines.
• Suitable carrier oil systems are described, for example, in DE-A-38 38 918, DE-A-38 26 608, DE-A-41 42 241, DE-43 09 074, US-A-4 877 416 and EP-A-0 452 328, to which express reference is hereby made.
• particularly suitable synthetic carrier oils are alcohol-initiated polyethers with about 15 to 30, for example about 20 to 25, C 3 -C 6 alkylene oxide units, such as, for example, selected from propylene oxide, n-butylene oxide and i-butylene oxide units or mixtures thereof ,
• Solidifying agent is preferably fuel-soluble and has usually a melting point or softening point above the corresponding values of the finished composition, e.g. in the range of about 30 to 100 ° C, preferably about 30 to 90 ° C, especially 40 to 70 ° C.
• the solidifying agent selected from fuel-soluble (a) natural waxes, such as e.g. petrochemical waxes, in particular paraffin wax and petroleum jelly; (b) chemically modified waxes, e.g. Hard waxes, and (c) synthetic waxes such as e.g. Polyethylene wax and high molecular weight polyisobutene (see e.g.
• Solidifying agents suitable according to the invention have a Fuel solubility up to about 10% by weight of the fuel used.
• the fuel additive compositions according to the invention are in simply using well known techniques produced.
• the solidifying agent is preferably heated at its softening temperature, there is stirring Fuel additive or the additive mixture and optionally that Add carrier oil and stir until a homogeneous mixture is formed is.
• the liquid mixture is then allowed to solidify.
• the incorporation of the additive into the hardening agent is the same usable by kneading or by melt extrusion.
• the finished composition is then extruded or made up into tablets. There is also the possibility to provide the compositions in pill or powder form. Encapsulation of pellets or pills is possible however not required.
• the additive compositions according to the invention can the fuel without special technical devices e.g. right away after loading into the tanker.
• the dosing units such as. Pellets are added in an amount that is required to have a detergent additive concentration of approximately 20 to 5000 mg / kg fuel, e.g. about 400 - 900 mg / kg Fuel.
• Example 1 Preparation of a solid additive composition
• Example 2 Preparation of a solid additive composition
• Example 3 Determination of the cleaning action of a solid additive formulation
• test results show that inlet valve deposits in the Significantly reduced compared to the non-additive basic value were.

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• Chemical & Material Sciences (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Engineering & Computer Science (AREA)
• Organic Chemistry (AREA)
• Chemical Kinetics & Catalysis (AREA)
• General Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Solid Fuels And Fuel-Associated Substances (AREA)
• Liquid Carbonaceous Fuels (AREA)
• Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Applications Claiming Priority (3)

Publications (2)

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ID=7856849

Family Applications (1)

Country Status (19)

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• 1998
  • 1998-02-06 DE DE19804756A patent/DE19804756A1/de not_active Withdrawn
• 1999
  • 1999-02-05 CA CA002319526A patent/CA2319526A1/en not_active Abandoned
  • 1999-02-05 AU AU25224/99A patent/AU754706B2/en not_active Ceased
  • 1999-02-05 EE EEP200000457A patent/EE04197B1/xx not_active IP Right Cessation
  • 1999-02-05 EP EP99904864A patent/EP1051462B1/de not_active Expired - Lifetime
  • 1999-02-05 ES ES99904864T patent/ES2203066T3/es not_active Expired - Lifetime
  • 1999-02-05 PL PL99342230A patent/PL342230A1/xx unknown
  • 1999-02-05 IL IL13740099A patent/IL137400A/en not_active IP Right Cessation
  • 1999-02-05 TR TR2000/02269T patent/TR200002269T2/xx unknown
  • 1999-02-05 WO PCT/EP1999/000778 patent/WO1999040166A1/de not_active Application Discontinuation
  • 1999-02-05 DE DE59905998T patent/DE59905998D1/de not_active Expired - Lifetime
  • 1999-02-05 BR BR9910386-9A patent/BR9910386A/pt not_active IP Right Cessation
  • 1999-02-05 KR KR1020007008515A patent/KR20010040643A/ko not_active Application Discontinuation
  • 1999-02-05 HU HU0102107A patent/HUP0102107A3/hu unknown
  • 1999-02-05 JP JP2000530583A patent/JP2002502910A/ja not_active Withdrawn
  • 1999-02-05 AT AT99904864T patent/ATE243245T1/de not_active IP Right Cessation
  • 1999-02-05 SK SK1111-2000A patent/SK11112000A3/sk unknown
  • 1999-02-05 NZ NZ505969A patent/NZ505969A/xx unknown
  • 1999-02-05 US US09/601,018 patent/US6312480B1/en not_active Expired - Fee Related
• 2000
  • 2000-08-03 NO NO20003935A patent/NO20003935L/no not_active Application Discontinuation

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