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
• • 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
  • C10L10/08—Use of additives to fuels or fires for particular purposes for improving lubricity; for reducing wear
• • 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
  • C10L1/182—Organic compounds containing oxygen containing hydroxy groups; Salts thereof
  • C10L1/1822—Organic compounds containing oxygen containing hydroxy groups; Salts thereof hydroxy group directly attached to (cyclo)aliphatic carbon atoms
  • C10L1/1824—Organic compounds containing oxygen containing hydroxy groups; Salts thereof hydroxy group directly attached to (cyclo)aliphatic carbon atoms mono-hydroxy
• • 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 a fuel composition containing, in a larger amount, a specific low alkanol-containing gasoline fuel and a smaller amount of selected gasoline additives.
• fuel additives are used for keeping valves and carburetors or injection systems of gasoline engines clean (cf., for example: M.Rossenbeck in catalysts, surfactants, mineral oil additives, ed. J. Falbe, U. Hasserodt, p. 223, G. Thieme Verlag, Stuttgart 1978 ).
• valve seat wear-inhibiting additives based on alkali metal or alkaline earth metal compounds have been developed.
• Modern gasoline engines require for a trouble-free use fuels with a complex property profile, which can be guaranteed only in combination with appropriate gasoline additives.
• Such gasoline fuels usually consist of a complex mixture of chemical compounds and are characterized by physical quantities.
• the interaction between gasoline fuels and corresponding additives is still in need of improvement in the case of the known fuel compositions with regard to the cleansing or keeping clean and the valve seat wear-inhibiting effect.
• the WO 01/85874 discloses a fuel composition containing a gasoline having a sulfur content of max. 150 ppm, an olefin content of max. 21 vol .-%, a benzene content of max. 1.0 vol .-%, an aromatic content of max. 42% by volume, a carrier oil mixture and a detergent additive.
• the fuel composition may include alcohols such as methanol (maximum 3% by volume), ethanol (maximum 5% by volume), isopropanol (maximum 10% by volume), t-butanol (maximum 7% by volume) or isobutanol (maximum 10% by volume).
• Comparable maximum alcohol contents are in the older one WO 03/074637 for gasoline compositions which are additized with specific mixtures of detergent additive and carrier oil.
• the DD 140 359 describes low-lead fuels, containing 5-30 vol .-% of an additive of a mixture of methanol methyl tert-butyl ether and a boiled between 373 and 473 Kelvin alcohol fraction.
• the older one WO 03/076554 describes the use of specific hydrocarbyl amines to reduce injector deposits in gasoline engines, wherein the unleaded gasoline fuels used may contain 0.1-15% by volume of additives such as methanol, ethanol and MTBE.
• the object of the present invention was therefore to find a more effective gasoline-petrol fuel additive composition. In particular, more effective additive formulations should be found.
• the alkanol content is, based on the total volume of the fuel composition 10 to 75 vol .-%, preferably 10 to 65 vol .-%, in particular 20 to 55 vol .-%, such. B. 30 - 40 vol .-% or 40 - 50 vol .-%.
• the content of other alcohols and ethers in gasoline is usually relatively low. Typical maximum contents are 7% by volume for tert-butanol, 10% by volume for isobutanol and 15% by volume for ethers having 5 or more C atoms in the molecule.
• the aromatic content of the gasoline is preferably not more than 40% by volume, in particular not more than 38% by volume. Preferred ranges for the aromatic content are from 20 to 42% by volume, in particular from 25 to 40% by volume.
• the sulfur content of the gasoline is preferably not more than 100 ppm by weight, in particular not more than 50 ppm by weight. Preferred ranges for the sulfur content are from 0.5 to 150 ppm by weight, in particular from 1 to 100 ppm by weight.
• the gasoline has an olefin content of not more than 21% by volume, preferably not more than 18% by volume, in particular not more than 10% by volume. Preferred ranges for the olefin content are from 6 to 21% by volume, in particular from 7 to 18% by volume.
• the gasoline has a benzene content of not more than 1.0% by volume, in particular not more than 0.9% by volume.
• Preferred ranges for the benzene content are from 0.5 to 1.0% by volume, in particular from 0.6 to 0.9% by volume.
• the gasoline has an oxygen content of at most 2.7 wt .-%, preferably from 0.1 to 2.7 wt .-%, especially from 1.0 to 2.7 wt .-%, in particular from 1.2 to 2.0 wt .-%, on.
• a gasoline fuel which simultaneously has an aromatics content of not more than 38% by volume, an olefin content of not more than 21% by volume, a sulfur content of not more than 50 ppm by weight, a benzene content of not more than 1.0% by volume and a Having oxygen content of 1.0 to 2.7 wt .-%.
• the summer vapor pressure of the gasoline is usually not more than 70 kPa, in particular 60 kPa (each at 370C).
• the research octane number ("RON") of the gasoline is typically 90 to 100.
• a common range for the corresponding engine octane number (“MOZ”) is 80 to 90.
• the specified specifications are determined by conventional methods (DIN EN 228).
• the hydrophobic hydrocarbon radical in the gasoline fuel additives which provides sufficient solubility in the fuel, has a number average molecular weight (Mn) of 85 to 20,000, especially from 113 to 10,000, especially from 300 to 5000.
• Mn number average molecular weight
• Such additives based on highly reactive polyisobutene which from the polyisobutene, which may contain up to 20 wt .-% of n-butene units, by hydroformylation and reductive amination with ammonia, monoamines or polyamines such as dimethylaminopropylamine , Ethylenediamine, diethylenetriamine, triethylenetetramine or tetraethylenepentamine can be prepared, in particular from EP-A 244 616 known.
• monoamino groups (a) -containing additives are the compounds obtainable from polyisobutene epoxides by reaction with amines and subsequent dehydration and reduction of the amino alcohols, as are described in particular in US Pat DE-A 196 20 262 are described.
• Polyoxy-C 2 - to C 4 -alkylene additives (f) are preferably polyethers or polyetheramines which are obtainable by reaction of C 2 - to C 60 alkanols, C 6 - to C 30 alkanediols, mono- or di-C 2 C 30 -alkylamines, C 1 -C 30 -alkylcyclohexanols or C 1 -C 30 -alkylphenols with 1 to 30 mol of ethylene oxide and / or propylene oxide and / or butylene oxide per hydroxyl group or amino group and, in the case of polyetheramines, by subsequent reductive amination with ammonia, monoamines or polyamines are available.
• Such products are used in particular EP-A 310 875 .
• polyethers such products also meet carrier oil properties. Typical examples of these are tridecanol or Isotridecanolbutoxylate, Isononylphenolbutoxylate and Polyisobutenolbutoxylate and propoxylates and the corresponding reaction products with ammonia.
• derivatives with aliphatic polyamines such as ethylenediamine, diethylenetriamine, triethylenetetramine or tetraethylenepentamine.
• Such gasoline additives are particularly useful in US Pat. No. 4,849,572 described.
• Mannich reaction of substituted phenols with aldehydes and mono- or polyamines generated groupings (i) containing additives are preferably reaction products of polyisobutene-substituted phenols with formaldehyde and mono- or polyamines such as ethylenediamine, diethylenetriamine, triethylenetetramine, tetraethylenepentamine or dimethylaminopropylamine.
• Such "polyisobutene-Mannich bases" are particularly in the EP-A 831 141 described.
• the fuel composition of the invention may further contain other conventional components and additives.
• Suitable solvents or diluents are aliphatic and aromatic hydrocarbons, e.g. Solvent naphtha, into consideration.
• corrosion inhibitors for example based on film-forming ammonium salts of organic carboxylic acids or of heterocyclic aromatics in non-ferrous metal corrosion protection
• antioxidants or stabilizers for example based on amines such as p-phenylenediamine, dicyclohexylamine or derivatives thereof or on phenols such as 2,4-di tert-butylphenol or 3,5-di-tert-butyl-4-hydroxyphenylpropionic acid, demulsifiers, antistatic agents, metallocenes such as ferrocene or methylcyclopentadienyl manganese tricarbonyl, lubricity additives such as certain fatty acids, alkenyl succinic esters, bis (hydroxyalkyl) fatty amines, hydroxyacetamides or castor oil and dyes (markers). Sometimes amines are also added to lower the pH of the fuel.
• Typical mixtures of this type include polyisobutene amines in combination with alkanol-initiated polyethers such as tridecanol or isotridecanol butoxylates or propoxylates, polyisobutene amines in combination with alkanol-initiated polyetheramines such as tridecanol or isotridecanol butoxylate ammonia reaction products and alkanol-initiated polyether amines such as tridecanol or isotridecaol butoxylate ammonia reaction products in combination with alkanol-started polyethers such as tridecanol or isotridecanol butoxylates or propoxylates, each together with the said corrosion inhibitors or lubricity improvers.
• alkanol-initiated polyethers such as tridecanol or isotridecanol butoxylates or propoxylates
• alkanol-initiated polyetheramines such as tri
• the aforementioned gasoline additives with the polar groups (a), (f), (h) and (i) and the other components mentioned are added to the gasoline and unfold their effect there.
• the components or additives can be added to the gasoline fuel individually or as a previously prepared concentrate ("additive package").
• gasoline additives with the polar groups (a), (f), (h) and (i) are the gasoline usually in an amount of 5 to 5000 ppm by weight, especially 5 to 3000 ppm by weight, especially 10 to 1000 ppm by weight, added.
• the other components and additives mentioned are added, if desired, in customary amounts.
• the same cleaning or valve seat wear-inhibiting effect can be achieved as in comparable fuel compositions without low alkanol addition.
• the same amounts of detergent or valve seat wear-inhibiting agent in the inventive fuel composition compared to conventional fuel compositions surprisingly results in a significantly better cleansing or purifying or valve seat wear-inhibiting effect.
• the fuel composition according to the invention additionally has the advantage that fewer deposits are formed in the combustion chamber of the gasoline engine and that less additive is introduced into the engine oil via the fuel dilution.
• Example 1 was repeated, but using OK 2 instead of OK 1.
• Example 1 was repeated but using OK 3 instead of OK 1.
• TCD combustion chamber deposits

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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)
• Detergent Compositions (AREA)

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• 2003
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  • 2004-04-08 EP EP04726498.1A patent/EP1615985B1/de not_active Revoked
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