EP3945126B1 - Compositions de débrumage pour carburants - Google Patents

Compositions de débrumage pour carburants Download PDF

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EP3945126B1
EP3945126B1 EP20188966.4A EP20188966A EP3945126B1 EP 3945126 B1 EP3945126 B1 EP 3945126B1 EP 20188966 A EP20188966 A EP 20188966A EP 3945126 B1 EP3945126 B1 EP 3945126B1
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group
groups
fuel
formula
alkyl
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EP3945126A1 (fr
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Markus Hansch
Maxim Peretolchin
Stefan WINNIG
Christian Karl
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BASF SE
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BASF SE
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    • 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
    • C10L1/146—Macromolecular compounds according to different macromolecular groups, mixtures 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, 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
    • C10L1/18—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
    • C10L1/1981—Condensation polymers of aldehydes or ketones
    • 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
    • C10L1/22—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)
    • 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
    • C10L1/22—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)
    • C10L1/2387—Polyoxyalkyleneamines (poly)oxyalkylene amines and derivatives thereof (substituted by a macromolecular group containing 30C)
    • 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
    • C10L1/24—Organic compounds containing sulfur, selenium and/or tellurium
    • C10L1/2431—Organic compounds containing sulfur, selenium and/or tellurium sulfur bond to oxygen, e.g. sulfones, sulfoxides
    • C10L1/2437—Sulfonic acids; Derivatives thereof, e.g. sulfonamides, sulfosuccinic acid esters
    • 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
    • C10L1/28—Organic compounds containing silicon
    • C10L1/285—Organic compounds containing silicon 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
    • C10L2200/00—Components of fuel compositions
    • C10L2200/04—Organic compounds
    • C10L2200/0407—Specifically defined hydrocarbon fractions as obtained from, e.g. a distillation column
    • C10L2200/0415—Light distillates, e.g. LPG, naphtha
    • C10L2200/0423—Gasoline
    • 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
    • C10L2200/00—Components of fuel compositions
    • C10L2200/04—Organic compounds
    • C10L2200/0407—Specifically defined hydrocarbon fractions as obtained from, e.g. a distillation column
    • C10L2200/0438—Middle or heavy distillates, heating oil, gasoil, marine fuels, residua
    • 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
    • C10L2200/00—Components of fuel compositions
    • C10L2200/04—Organic compounds
    • C10L2200/0407—Specifically defined hydrocarbon fractions as obtained from, e.g. a distillation column
    • C10L2200/0438—Middle or heavy distillates, heating oil, gasoil, marine fuels, residua
    • C10L2200/0446—Diesel
    • 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
    • C10L2230/00—Function and purpose of a components of a fuel or the composition as a whole
    • C10L2230/08—Inhibitors
    • C10L2230/086—Demulsifiers
    • 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
    • C10L2250/00—Structural features of fuel components or fuel compositions, either in solid, liquid or gaseous state
    • C10L2250/04—Additive or component is a polymer
    • 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
    • C10L2250/00—Structural features of fuel components or fuel compositions, either in solid, liquid or gaseous state
    • C10L2250/08—Emulsion details
    • C10L2250/084—Water in oil (w/o) emulsion
    • 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
    • C10L2270/00—Specifically adapted fuels
    • C10L2270/02—Specifically adapted fuels for internal combustion engines
    • C10L2270/023—Specifically adapted fuels for internal combustion engines for gasoline engines
    • 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
    • C10L2270/00—Specifically adapted fuels
    • C10L2270/02—Specifically adapted fuels for internal combustion engines
    • C10L2270/026—Specifically adapted fuels for internal combustion engines for diesel engines, e.g. automobiles, stationary, marine

Definitions

  • the present application describes new compositions with improved dehazing properties for fuels.
  • EP 1609843 A2 describes the use of alkoxylated polyethyleneimines with a molecular weight Mw of more than 55000 as demulsifiers for middle distillates with vegetable or animal fuel oils and water. Furthermore, mixing such alkoxylated polyethyleneimines with other additives, such as paraffin dispersants, alkyl phenol-aldehyde resins, polymeric cold flow improvers and oil-soluble amphiphiles, is generally mentioned in the text, however, not explicitly disclosed.
  • middle distillates according to EP 1609843 A2 may further contain alkylphenol-aldehyde resins as paraffin dispersants.
  • EP 1609843 A2 does not recognise the demulsifying effect of alkylphenol-aldehyde resins or their synergistic effect in combination with alkoxylated polyethyleneimines as demulsifiers.
  • WO 96/22343 describes alkoxylated alkylphenol-aldehyde resins or alkylaryl sulfonates as demulsifiers in fuel oil compositions, however, is silent about alkoxylated polyethyleneimines and does not recognise their synergistic effect.
  • Component (A) is at least one alkoxylated polyethyleneimine polyethyleneimine of Formula (I) or Formula (II) in which
  • the precursors of the alkoxylated monomeric, oligo- and polyethyleneimines to be used in the context of the present invention are branched, monomeric, oligomeric or polymeric amines in which a nitrogen atom always follows two carbon atoms.
  • formula (I) representing alkoxylated monomeric and oligoethyleneimines typical values for x are zero or 1 to 5, more preferably zero or 1 to 4, even more preferably zero or 1 to 3 and especially zero or 1 or 2.
  • Examples of monomeric and oligomeric ethyleneimines are ethylene diamine, diethylene triamine, triethylene tetramine, tetraethylene pentamine, and pentaethylene hexamine. Above five ethylene imine units these compounds are referred to as polyethylene imines.
  • formula (II) representing alkoxylated polyethyleneimines typical values for x and y are independently of another zero or 1 to 1500, more preferably 10 to 1400, even more preferably 20 to 1300 and especially 30 to 1200.
  • the proviso is that in formula (II) the sum total of x and y is non-zero.
  • the ratio of primary to secondary to tertiary nitrogen atoms, determined by 13 C-NMR spectroscopy, in the polyethyleneimines underlying the alkoxylated polyethyleneimines is preferably, as is typical in the corresponding commercially available products, 1: 0.5 to 1.5 : 0.3 to 0.9, preferably 1 : 0.6 to 1.3 : 0.4 to 0.8, more preferably 1 : 0.7 to 1.3 : 0.4 to 0.8 and especially 1 : 0.9 to 1.1 : 0.5 to 0.7.
  • polymers they have a molecular weight distribution.
  • the monomeric, oligo- or polyethyleneimines are alkoxylated with C 2 - to C 4 -alkylene oxides or a mixture of such alkylene oxides, so that the alkoxylated monomeric, oligo- or polyethyleneimine has a preferred degree of alkoxylation, i.e. the sum total of j, k, l, m, n, p, q, and r, of from 2 to 200 alkylene oxide units, preferably from 5 to 180, more preferably from 10 to 150, most preferably 15 to 100 and especially 20 to 50.
  • each of the parameters j, k, l, m, n, p, q, and r is independently of another zero or a positive integer with the proviso that the sum total of j, k, l, m, n, p, q, and r is non-zero.
  • Preferred values of parameters j, k, I, m, n, p, q, and r are independently of another zero or 1 to 50, more preferably zero or 1 to 40, even more preferably 1 to 35 and especially from 2 to 30.
  • the alkoxylated monomeric, oligo- or polyethyleneimines used are prepared by sequential alkoxylation of ethylene oxide, propylene oxide, 1-butene oxide, 2-butene oxide and/or iso butylene oxide, preferably ethylene oxide, propylene oxide, and/or 1-butene oxide, more preferably ethylene oxide, and/or propylene oxide, under alkaline catalysis.
  • alkoxylated monomeric, oligo- or polyethyleneimines which are prepared by alkoxylation first with propylene oxide (PO) and subsequently with ethylene oxide (EO).
  • Alkoxylation with two or more different alkylene oxide, preferably with two different alkylene oxides, may occur statistically or blockwise, preferably statistically.
  • the compounds (A) generally have a weight average molecular weight Mw of 2,000 to 5,000,000 g/mol, preferably 3000 to 4,500,000, more preferably 4000 to 3,000,000, even more preferably 5000 to 2,500,000, and most preferably 6000 to less than 2,000,000 g/mol, measured by means of gel permeation chromatography (GPC) against polyethylene glycol in tetrahydrofuran.
  • Mw weight average molecular weight
  • compound (A) exhibits a weight average molecular weight M w determined by gel permeation chromatography of less than 55000 g/mol, preferably less than 50000, more preferably less than 45000, even more preferably less than 40000, most preferably less than 35000 and especially less than 30000 g/mol.
  • compound (A) exhibits a weight average molecular weight M w determined by gel permeation chromatography of more than 55000 g/mol, preferably more than 100000, more preferably more than 200000 and especially more than 500000 g/mol.
  • RSN relative solubility number
  • the relative solubility number of the compounds (A) is preferably between 4 ml and 50 ml, in particular between 5 ml and 35 ml
  • Water separation is usually achieved at lower levels of compound (A) compared with the disclosure of EP 1609843 A2 .
  • the alkoxylated monomeric, oligo- or polyethyleneimines (A) are added to the fuel together with mixtures with (B) in amounts of from 0.1 to 100 ppm by weight, preferably from 0.5 to 50 ppm by weight and more preferably from 1 to 10 ppm by weight.
  • solvents for example aliphatic and/or aromatic hydrocarbons or hydrocarbon mixtures, for example toluene, xylene, ethylbenzene, decane, pentadecane, benzine fractions, kerosene, naphtha, diesel, heating oil, isoparaffins or commercial solvent mixtures such as Solvent Naphtha, ® Shellsol AB, ® Solvesso 150, ® Solvesso 200, ® Exxsol, ® Isopar and ® Shellsol D types, preferably as naphthalene depleted qualities.
  • solvents for example aliphatic and/or aromatic hydrocarbons or hydrocarbon mixtures, for example toluene, xylene, ethylbenzene, decane, pentadecane, benzine fractions, kerosene, naphtha, diesel, heating oil, isoparaffins or commercial solvent mixtures such as Solvent Naphtha, ® Shell
  • long chain alcohols preferably alkanols with 6 or more, preferably 8 to 20 carbon atoms may be used as solvents.
  • Preferred examples are 2-ethylhexanol or 2-propylheptanol. They are preferably dissolved in fuel oil of animal or vegetable origin based on fatty acid alkyl esters.
  • the inventive additives preferably contain 1 - 80 %, especially 10 - 70%, in particular 25 - 60%, of solvent.
  • the polymers (A) may be added to the fuel which is or will be additized in accordance with processes disclosed in the prior art. When more than one compound (A) is to be used, such components may be introduced into the fuel together or separately in any combination.
  • Component (B) of the mixture according to the invention is at least one alkylphenol-aldehyde resin having a repeating structural unit of formula (III) in which
  • Alkylphenol-aldehyde resins are known in principle and are described, for example, in Römpp Chemie Lexikon, 9th edition, Thieme Verlag 1988-92, volume 4, p. 3351ff .
  • the alkyl or alkenyl radicals of the alkylphenol have 4 - 24, preferably 6 - 24, more preferably 8 - 22, in particular 9 - 18 carbon atoms. They may be linear or preferably branched, in which case the branch may contain secondary and also tertiary structural elements.
  • the alkyl or alkenyl radicals are preferably n- and isohexyl, n- and isooctyl, n- and isononyl, n- and isodecyl, n- and isododecyl, tetradecyl, hexadecyl, octadecyl, eicosyl and also tripropenyl, tetrapropenyl, pentapropenyl and polyisobutenyl up to C 24 .
  • the alkylphenol-aldehyde resin may also contain up to 20 mol% of phenol units and/or alkyl phenols having short alkyl chains, for example butylphenol. For the alkylphenolaldehyde resin, the same or different alkylphenols may be used.
  • the aldehyde in the alkylphenol-aldehyde resin has from 1 to 10, preferably from 1 to 4 carbon atoms and may bear further functional groups. It is preferably an aliphatic aldehyde, more pref-erably formaldehyde or acetaldehyde, even more preferably formaldehyde.
  • the number average molecular weight Mn of the alkylphenol-aldehyde resins is preferably 1000 - 50000 g/mol, in particular 5000 - 15000 g/mol. This preferably corresponds to a degree of condensation z of from 10 to 80, preferably from 15 to 75, more preferably from 20 to 70 and especially from 25 to 65.
  • the alkyl phenol-aldehyde resins are prepared in a known manner by basic catalysis to form condensation products of the resol type, or by acidic catalysis to form condensation products of the novolak type.
  • the condensates obtained in both ways are suitable for the inventive compositions. Preference is given to condensation in the presence of acidic catalysts.
  • an alkylphenol having 6 - 24, preferably 8 - 22, in particular 9 - 18, carbon atoms per alkyl group, or mixtures thereof, and at least one aldehyde are reacted with one another, and about 0.5 - 2 mol, preferably 0.7 - 1.3 mol and in particular equimolar amounts of aldehyde are used per mole of alkyl phenol compound.
  • Suitable alkylphenols are in particular n- and isohexylphenol, n- and isooctylphenol, n- and isononylphenol, n- and isodecylphenol, n- and isododecylphenol, tetradecylphenol, hexa-decylphenol, octadecylphenol, eicosylphenol, tripropenylphenol, tetrapropenylphenol and poly(isobutenyl)phenol up to C 24 .
  • the alkylphenols are preferably para-substituted.
  • the alkylphenols may bear one or more alkyl radicals. They are substituted by more than one alkyl group preferably to an extent of at most 5 mol%, in particular to an extent of at most 20 mol% and especially at most 40 mol%. Preferably at most 40 mol%, in particular at most 20 mol% of the alkylphenols used bear an alkyl radical in the ortho-position.
  • the alkylphenols are especially not substituted by tertiary alkyl groups in the ortho-position to the hydroxyl group.
  • the aldehyde may be a mono- or dialdehyde and bear further functional groups such as -COOH.
  • Particularly suitable aldehydes are formaldehyde, acetaldehyde, butyraldehyde, glutaraldehyde and glyoxalic acid, preference is given to formaldehyde.
  • the formaldehyde may be used in the form of paraformaldehyde or in the form of a preferably 20 - 40% by weight aqueous formalin solution. It is also possible to use corresponding amounts of trioxane.
  • alkyl phenol and aldehyde is effected typically in the presence of alkaline catalysts, for example alkali metal hydroxides or alkylamines, or of acidic catalysts, for example inorganic or organic acids such as hydrochloric acid, sulfuric acid, phosphoric acid, sulfonic acid, sulfamido acids or haloacetic acids, and in the presence of an organic solvent which forms an azeotrope with water, for example toluene, xylene, higher aromatics or mixtures thereof.
  • the reaction mixture is heated to a temperature of from 90 to 200°C, preferably 100 - 160°C, and the water of reaction formed is removed by azeotropic distillation during the reaction.
  • Solvents which do not release any protons under the conditions of the condensation may remain in the products after the condensation reaction.
  • the resins may be used directly or after neutralization of the catalyst, optionally also after further dilution of the solution with aliphatic and/or aromatic hydrocarbons or hydrocarbon mixtures, for example benzine fractions, kerosene, decane, pentadecane, toluene, xylene, ethylbenzene or solvents such as ® Solvent Naphtha, ® Shellsol AB, ® Solvesso iSO, ® Solvesso 200, ® Exxsol, ® ISOPAR and ® Shellsol D types.
  • Components (B) do not necessarily need to be obtained from reaction of a phenol with an aldehyde but may also be obtained from reaction of acetylene with the respective alkylphenols.
  • R 3 is methyl.
  • Koresin ® a resin marketed by BASF, and which is obtainable by reacting acetylene and para tertiary butyl phenol.
  • the alkyl phenol and aldehyde resins may be alkoxylated with ethylene oxide, propylene oxide, 1-butene oxide, 2-butene oxide and/or iso butylene oxide, pref-erably ethylene oxide, propylene oxide, and/or 1-butene oxide, more preferably ethylene oxide, and/or propylene oxide as described in the prior art.
  • the amount of alkoxylate groups in component (B) is from 10 to 75 wt%.
  • composition according to the invention further comprises at least one alkyl-, aryl- or alkylaryl sulfonate or sulfate (C), preferably a sulfonate, more preferably an alkyl- or alkylaryl sulfonate, and especially an alkylaryl sulfonate.
  • C alkyl-, aryl- or alkylaryl sulfonate or sulfate
  • the alkyl group for example comprises 6 to 24, preferably 8 to 20, more preferably 10 to 18 carbon atoms and can be linear or branched.
  • Examples are n- and isohexyl, n- and isooctyl, 2-ethylhexyl, n- and isononyl, n- and isodecyl, 2-propylheptyl, n- and isododecyl, tetradecyl, hexadecyl, octadecyl, eicosyl and also tripropenyl, tetrapropenyl, pentapropenyl and polyisobutenyl up to C 24 .
  • Aryl groups comprise 6 to 12 carbon atoms.
  • Examples are phenyl or naphthyl.
  • Alkylaryl groups for example comprise 7 to 30 carbon atoms, preferably 10 to 24, more preferably 14 to 22 carbon atoms.
  • Examples are n- and isohexylphenyl, n- and isooctylphenyl, 2-ethylhexylphenyl, n- and isononylphenyl, n- and isodecylphenyl, 2-propylheptylphenyl, n- and isododecylphenyl, tetradecylphenyl, hexadecylphenyl, and octadecylphenyl.
  • the alkyl substituent is preferably mainly located in para position of the aryl ring.
  • the counter ions of the sulfates or sulfonates may be sodium, potassium, ammonium or magnesium, preferably sodium or potassium and very preferably sodium.
  • Preferred sulfates are sodium dodecyl sulfate, potassium dodecyl sulfate, ammonium dodecyl sulfate, sodium tetradecyl sulfate, sodium hexadecyl sulfate, and mixtures thereof.
  • Preferred sulfonates are sodium n-decyl benzene sulfonate, sodium iso-decyl benzene sulfonate, sodium n-dodecyl benzene sulfonate, sodium iso-dodecyl benzene sulfonate, sodium n-tetradecyl benzene sulfonate, sodium iso-tetradecyl benzene sulfonate, and mixtures thereof, especially sodium-n-alkyl (C 10 -C 13 ) benzene sulphonate.
  • the weight ratio of the components (A) : (B) : (C) in the compositions according to the invention is 0.1 - 100 : 0.1 - 100 : > 0 - 0.5, preferably 0.5 - 75 : 0.5 - 75 : 0 - 0.5, and especially 1 - 50 : 1 - 50 : 0.1 - 0.5
  • inventive mixtures can be added either to middle distillate fuels entirely of fossil origin, i.e. those that have been obtained from mineral oil, or to fuels which, as well as the proportion based on mineral oil, comprise a proportion of biodiesel, in order to improve the properties thereof. In both cases, a distinct improvement of water separation is observed using the compositions according to the invention.
  • the present invention also provides fuels, especially those with a biodiesel content, comprising the inventive mixtures.
  • the fuels or fuel additive concentrates also comprise, as further additives in amounts customary therefor, flow improvers (as described above), further paraffin dispersants, conductivity improvers, anticorrosion additives, lubricity additives, antioxidants, metal deactivators, antifoams, demulsifiers, detergents, cetane number improvers, solvents or diluents, dyes or fragrances or mixtures thereof.
  • flow improvers as described above
  • further paraffin dispersants as conductivity improvers
  • anticorrosion additives lubricity additives
  • lubricity additives antioxidants
  • metal deactivators antifoams
  • demulsifiers demulsifiers
  • detergents cetane number improvers
  • solvents or diluents dyes or fragrances or mixtures thereof.
  • fuel oils shall be understood to mean middle distillate fuels of fossil, vegetable or animal origin, biofuel oils ("biodiesel”) and mixtures of such middle distillate fuels and biofuel oils.
  • Middle distillate fuels are especially understood to mean fuels which are obtained by distilling crude oil as the first process step and boil within the range from 120 to 450°C.
  • Such middle distillate fuels are used especially as diesel fuel, heating oil or kerosene, particular preference being given to diesel fuel and heating oil.
  • middle distillates are generally crude oil distillates which have been subjected to refining under hydrogenating conditions and therefore comprise only small proportions of polyaromatic and polar compounds. They are preferably those middle distillates which have 90% distillation points below 370°C, especially below 360°C and in special cases below 330°C. Low-sulfur and sulfur-free middle distillates may also be obtained from relatively heavy mineral oil fractions which cannot be distilled under atmospheric pressure. Typical conversion processes for preparing middle distillates from heavy crude oil fractions include: hydrocracking, thermal cracking, catalytic cracking, coking processes and/or visbreaking. Depending on the process, these middle distillates are obtained in low-sulfur or sulfur-free form, or are subjected to refining under hydrogenating conditions.
  • the middle distillates preferably have aromatics contents of below 30% by weight, preferably below 25% by weight, and especially below 20% by weight.
  • the content of normal paraffins is between 5% by weight and 50% by weight, preferably between 10 and 35% by weight.
  • middle distillate fuels shall also be understood here to mean those fuels which can either be derived indirectly from fossil sources such as mineral oil or natural gas, or else are produced from biomass via gasification and subsequent hydrogenation.
  • a typical example of a middle distillate fuel which is derived indirectly from fossil sources is the GTL ("gas-to-liquid”) diesel fuel obtained by means of Fischer-Tropsch synthesis.
  • a middle distillate is prepared from biomass, for example, via the BTL ("biomass-to-liquid”) process, and can be used as fuel either alone or in a mixture with other middle distillates.
  • the middle distillates also include hydrocarbons which are obtained by the hydrogenation of fats and fatty oils. They comprise predominantly n-paraffins.
  • the inventive copolymer can also be used in biofuel oils and in mixtures of the middle distillates mentioned with biofuel oils, in order to improve cold flow characteristics.
  • Mixtures of this kind are commercially available and usually comprise the biofuel oils in minor amounts, typically in amounts of 1% to 30% by weight, especially of 3% to 10% by weight, based on the total amount of middle distillate of fossil, vegetable or animal origin and biofuel oil.
  • Biofuel oils are generally based on fatty acid esters, preferably essentially on alkyl esters of fatty acids which derive from vegetable and/or animal oils and/or fats.
  • Alkyl esters are preferably understood to mean lower alkyl esters, especially C 1 - to C 4 -alkyl esters, which are obtainable by transesterifying the glycerides which occur in vegetable and/or animal oils and/or fats, especially triglycerides, by means of lower alcohols, for example ethanol or in particular methanol (“FAME").
  • Typical lower alkyl esters which are based on vegetable and/or animal oils and/or fats and find use as a biofuel oil or components thereof are, for example, HVO (hydrogenated vegetable oil), sunflower methyl ester, palm oil methyl ester (“PME”), soya oil methyl ester (“SME”) and especially rapeseed oil methyl ester ("RME”).
  • HVO hydrogenated vegetable oil
  • PME palm oil methyl ester
  • SME soya oil methyl ester
  • RME rapeseed oil methyl ester
  • the Diesel fuel contains at least one quaternary ammonium salt as Deposit Control Agent for removal of deposits.
  • fuel may be a gasoline.
  • gasoline includes blends of distillate hydrocarbon fuels with oxygenated compounds such as ethanol, as well as the distillate fuels themselves.
  • Suitable gasolines are e.g. those described in Ullmann's Encyclopedia of Industrial Chemistry, 5th edition, 1990, volume A16, page 719 ff .
  • Suitable gasolines are e.g. those having an aromatics content of not more than 60% by volume, e.g. not more than 42% by volume or not more than 35% by volume and/or a sulfur content of not more than 2000 ppm by weight, e.g. not more than 150 ppm by weight or not more than 10 ppm by weight.
  • the aromatics content of the gasoline is e.g. from 10 to 50% by volume, e.g. from 30 to 42% by volume, in particular from 32 to 40% by volume or not more than 35% by volume.
  • the sulfur content is e.g. of from 2 to 500 ppm by weight, e.g. of from 5 to 100 or not more than 10 ppm by weight.
  • the olefin content of the gasoline can be up to 50% by volume, e.g. from 6 to 21% by volume, in particular from 7 to 18% by volume.
  • the gasoline has a benzene content of not more than 5% by volume, e.g. 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 not more than 30% by weight, e.g. up to 10% by weight or from 1.0 to 3.7% by weight, and in particular from 1.2 to 2.7% by weight.
  • a gasoline which has an aromatics content of not more than 38% by volume or preferably not more than 35% by volume, and at the same time an olefin content of not more than 21% by volume, a sulfur content of not more than 50 or 10 ppm by weight, a benzene content of not more than 1.0% by volume and an oxygen content of from 1.0 to 2.7% by weight.
  • the amount of alcohols and ethers contained in the gasoline may vary over wide ranges. Typical maximum contents are e.g. methanol 15% by volume, ethanol 85% by volume, isopropanol 20% by volume, tert-butanol 15% by volume, isobutanol 20% by volume and ethers containing 5 or more carbon atoms in the molecule 30% by volume.
  • the summer vapor pressure of the gasoline (at 37°C) is usually not more than 70kPa, in particular not more than 60kPa.
  • the research octane number (RON) of the gasoline is usually from 75 to 105.
  • a usual range for the corresponding motor octane number (MON) is from 65 to 95.
  • the fuel may comprise further customary additives to improve its features.
  • lubricity improvers In the case of gasoline fuels, these are in particular lubricity improvers (friction modifiers), corrosion inhibitors, combustion improvers, antioxidants or stabilizers, antistats, metallocenes, metal deactivators, dyes and/or solvents.
  • gasoline fuel comprises at least one deposit control additive.
  • the customary deposit control additives are preferably amphiphilic substances which possess at least one hydrophobic hydrocarbon radical with a number-average molecular weight (M n ) of 85 to 20 000 and at least one polar moiety selected from:
  • the hydrophobic hydrocarbon radical in the above deposit control additives which ensures adequate solubility in the fuel, has a number-average molecular weight (M n ) of 85 to 20 000, pref-erably of 113 to 10 000, more preferably of 300 to 5000, even more preferably of 300 to 3000, even more especially preferably of 500 to 2500 and especially of 700 to 2500, in particular of 800 to 1500.
  • M n number-average molecular weight
  • hydrophobic hydrocarbon radicals especially in conjunction with the polar, especially polypropenyl, polybutenyl and polyisobutenyl radicals with a number-average molecular weight M n of preferably in each case 300 to 5000, more preferably 300 to 3000, even more preferably 500 to 2500, even more especially preferably 700 to 2500 and especially 800 to 1500 into consideration.
  • Such additives based on high-reactivity polyisobutene which can be prepared from the polyisobutene which may comprise up to 20% by weight of n-butene units by hydroformylation and reductive amination with ammonia, monoamines or polyamines such as dimethylaminopropylamine, ethylenediamine, diethylenetriamine, triethylenetetramine or tetraethylenepentamine, are known especially from EP-A 244 616 .
  • additives comprising monoamino groups (Da) are the compounds obtainable from polyisobutene epoxides by reaction with amines and subsequent dehydration and reduction of the amino alcohols, as described more particularly in DE-A 196 20 262 .
  • Additives comprising polyoxy-C 2 -C 4 -alkylene moieties 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 - to C 30 -alkylamines, C 1 - to C 30 -alkylcyclohexanols or C 1 - to 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 the polyetheramines, by subsequent reductive amination with ammonia, monoamines or polyamines.
  • Such products are described more particularly in EP-A 310 875 , EP-A 356 725 , EP-A 700 985 and US-A 4 877 416 .
  • polyethers such products also have carrier oil properties. Typical examples thereof are tridecanol butoxylates or isotridecanol butoxylates, isononylphenol butoxylates and also polyisobutenol butoxylates and propoxylates, and also the corresponding reaction products with ammonia.
  • Additives comprising carboxylic ester groups (Dg) are preferably esters of mono-, di- or tricarboxylic acids with long-chain alkanols or polyols, especially those having a minimum viscosity of 2 mm 2 /s at 100°C, as described more particularly in DE-A 38 38 918 .
  • the mono-, di- or tricarboxylic acids used may be aliphatic or aromatic acids, and particularly suitable ester alcohols or ester polyols are long-chain representatives having, for example, 6 to 24 carbon atoms.
  • esters are adipates, phthalates, isophthalates, terephthalates and trimellitates of isooctanol, of isononanol, of isodecanol and of isotridecanol. Such products also satisfy carrier oil properties.
  • the moieties having hydroxyl and/or amino and/or amido and/or imido groups are, for example, carboxylic acid groups, acid amides of monoamines, acid amides of di- or polyamines which, in addition to the amide function, also have free amine groups, succinic acid derivatives having an acid and an amide function, carboximides with monoamines, carboximides with di- or polyamines which, in addition to the imide function, also have free amine groups, or diimides which are formed by the reaction of di- or polyamines with two succinic acid derivatives.
  • the further deposit control additive in the context of the present invention is, however, used only up to a maximum of 100% of the weight of compounds with betaine structure.
  • fuel additives are common knowledge and are described, for example, in documents (1) and (2). They are preferably the reaction products of alkyl- or alkenyl-substituted succinic acids or derivatives thereof with amines and more preferably the reaction products of polyisobutenyl-substituted succinic acids or derivatives thereof with amines.
  • reaction products with aliphatic polyamines such as especially ethylenediamine, diethylenetriamine, triethylenetetramine, tetraethylenepentamine, pentaethylenehexamine and hexaethyleneheptamine, which have an imide structure.
  • Additives comprising moieties (Di) obtained by Mannich reaction of substituted phenols with aldehydes and mono- or polyamines 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 described more particularly in EP-A 831 141 .
  • One or more of the deposit control additives mentioned can be added to the fuel in such an amount that the dosage of these deposit control additives is preferably 25 to 2500 ppm by weight, especially 75 to 1500 ppm by weight, in particular 150 to 1000 ppm by weight.
  • Component A Polyethyleneimine with average molar mass of 25000 g/mol according to GPC and a ratio of primary/secondary/tertiary amines of 1/1,1/0,7 according to 13 C-NMR, propoxylated and ethoxylated (95 wt% propylene oxide and 5 wt% ethylene oxide) to a hydroxyl value of 38 mg KOH/g.
  • Weight averaged molecular weight M w is 1.5 million g/mol, determined by gel permeation chromatography (GPC), tetrahydrofurane as eluent, polystyrene standard.
  • Component B Ethoxylated Novolac resin obtained from condensation of isononylphenol with formaldehyde and subsequent ethoxylation up to an ethylene oxide-content of 60 wt-%.
  • GPC solvent THF against polystyrene standard: M n 11630 g/mol, M w 20370 g/mol, (determined by gel permeation chromatography, tetrahydrofurane as eluent, polystyrene standard) hydroxyl value (according to DIN 53240-1 potentiometric) 99 mg KOH/g. RSN 18.5 ml.
  • Component C Polyethyleneimine with average molar mass of 25000 g/mol according to GPC and a ratio of primary/secondary/tertiary amines of 1/1,1/0,7 according to 13 C-NMR, propoxylated to a hydroxyl value of 32 mg KOH/g. RSN 6 ml. M w 4.4 million g/mol (GPC as described above).
  • DCA1 Quaternary ammonium compound preparatory example 6 from WO 2014/195464 .
  • DCA2 Deposit Control Additive 2
  • Defoamer silicone component TP-645 from Momentive Performance Materials Inc.
  • LAS Sodium-n-alkyl (C10-C13) benzene sulphonate; Disponil ® LDBS 55 (BASF SE)
  • Reference diesel fuel Unadditized B7 diesel fuel compliant to EN 590 (fuel F) and B0 diesel fuel RF-79-07 batch 9 from Garrmann (fuel G).
  • Component H is an ethylene diamine alkoxylated with 67 propylene oxide (PO) und 73 ethylene oxide (EO) (block) using potassium hydroxide (KOH) as catalyst, neutralized with neodecanoic acid.
  • the effectiveness of the demulsifiers was evaluated according to ASTM D 1094-07. In this test 80 ml of the fuel is shaken with 20 ml pH 7 phosphate buffer using a standardized technique at room temperature. The change in volume of the aqueous layer, the appearance of the interface and the degree of separation are taken as the water reaction of the fuel.
  • the change of volume of the aqueous layer is determined after 5 minutes (V aq . 5 min.), in addition the times needed for separation of 15 ml (t(15 ml)) and the total 20 ml (t(20 ml)) aqueous layer are reported. In all cases the reported dosages of additives refer to active material. Separation rating and interface rating was done after 5 minutes. In all cases except for examples 1, 12 and 23 (without demulsifier compounds) the interface rating was 4, the separation rating for the aqueous phase was 2 and the separation rating for the fuel layer was 3. For examples 1, 12 and 23 the interface rating was 4, the separation rating for the aqueous phase was 3 and the separation rating for the fuel layer was 3.
  • the fuels containing solely DCA tend to form quite stable emulsions.
  • the employed silicone defoamer already shows demulsifying properties (compare examples 1 and 2, or 12 and 13, respectively).
  • the inventive demulsifier combinations further increase the demulsification tendency leading to improved or equally good water separation after 5 minutes (increased V aq. 5 min.) for a fixed combination of fuel, DCA and defoamer compared to the comparative examples.
  • Type A B C H LAS Defoamer DCA 1 DCA 2 Fuel VAQ 5 min t (15mL) t (20mL) 1 comp 65 F 0 205 n.d.

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Claims (10)

  1. Utilisation d'une composition de
    (A) au moins une polyéthylèneimine alcoxylée de formule (I)
    Figure imgb0019
     ou de formule (II)
    Figure imgb0020
    (B) au moins une résine d'alkylphénol alcoxylé-aldéhyde ayant un motif structural répétitif de formule (III)
    Figure imgb0021
     dans lesquelles
    Xi pour i = 1 à j, 1 à k, 1 à l, 1 à m, 1 à n, 1 à p, 1 à q, 1 à r ou 1 à s est indépendamment choisi dans le groupe constitué par -CH2-CH2-O-, -CH2-CH(CH3)-O-, - CH(CH3)-CH2-O-, -CH2-C(CH3)2-O-, -C (CH3)2-CH2-O-, -CH2-CH(C2H5)-O-, -CH(C2H5)-CH2-O- et -CH(CH3)-CH(CH3)-O-, préférablement choisi dans le groupe constitué par -CH2-CH(CH3)-O-, -CH(CH3)-CH2-O-, -CH2-C(CH3)2-O-, -C(CH3)2-CH2-O-, -CH2-CH(C2H5)-O-, -CH(C2H5)-CH2-O- et -CH(CH3)-CH(CH3)-O-, plus préférablement choisi dans le groupe constitué par -CH2-CH(CH3)-O-, -CH(CH3)-CH2-O-, -CH2-C(CH3)2-O-, - C (CH3)2-CH2-O-, -CH2-CH(C2H5)-O- et -CH(C2H5)-CH2-O- et le plus préférablement choisi dans le groupe constitué par -CH2-CH2-O-, -CH2-CH(C2H5)-O-, -CH(C2H5)-CH2-O-, -CH2-CH(CH3)-O- et -CH (CH3)-CH2-O-, et notamment choisi dans le groupe constitué par -CH2-CH2-O-, -CH2-CH(CH3)-O- et - CH(CH3)-CH2-O-,
    x et y sont indépendamment zéro ou un entier positif z est un entier positif de 10 à 80
    j, k, l, m, n, p, q et r sont indépendamment zéro ou un entier positif
    R1 est hydrogène ou un groupe -[-Xi-]s-H
    R2 est un groupe C4- à C24-alkyle linéaire ou ramifié
    R3 est hydrogène ou un groupe C1- à C4-alkyle,
    dans lesquelles
    s est un entier positif de 3 à 30,
    à condition que
    - dans la formule (II), la somme totale de x et y soit différente de zéro,
    - la somme totale de j, k, l, m, n, p, q et r soit différente de zéro,
    et
    (C) au moins un sulfonate ou sulfate d'alkyle, d'aryle ou d'alkylaryle
    dans laquelle le rapport en poids des composants (A) : (B) : (C) est 0,1 - 100 : 0,1 - 100 : > 0 - 0,5
    pour la désémulsification de mélanges de carburants et d'eau.
  2. Utilisation selon l'une quelconque des revendications précédentes, dans laquelle le carburant est un carburant diesel, éventuellement comportant des huiles d'origine végétale ou animale.
  3. Utilisation selon la revendication 2, dans laquelle le diesel contient jusqu'à 30 % en poids d'au moins un ester alkyle d'acide gras.
  4. Utilisation selon la revendication 2 ou 3, dans laquelle le carburant diesel comprend en outre au moins un sel d'ammonium quaternaire comme additif de régulation de dépôts (DCA) comme composant (D).
  5. Utilisation selon l'une quelconque des revendications précédentes, dans laquelle le rapport en poids des composants (A) : (B) : (C) est 1 - 50 : 1 - 50 : 0,1 - 0,5.
  6. Utilisation selon l'une quelconque des revendications précédentes, dans laquelle la quantité de groupes alcoxylate dans le composant (B) est de 10 à 75 % en poids.
  7. Composition désémulsifiante comprenant
    (A) au moins une polyéthylèneimine alcoxylée de formule (I)
    Figure imgb0022
     ou de formule (II)
    Figure imgb0023
    (B) au moins une résine d'alkylphénol alcoxylé-aldéhyde ayant un motif structural répétitif de formule (III)
    Figure imgb0024
     et
    (C) au moins un sulfonate ou sulfate d'alkyle, d'aryle ou d'alkylaryle
    dans laquelle le rapport en poids des composants (A) : (B) : (C) est 0,1 - 100 : 0,1 - 100 : > 0 - 0,5
    dans laquelle les variables sont définies comme dans la revendication 1.
  8. Carburant, de préférence carburant diesel, éventuellement comportant des huiles d'origine végétale ou animale, comprenant au moins une composition selon la revendication 7.
  9. Carburant diesel selon la revendication 8, comprenant en outre au moins un sel d'ammonium quaternaire comme additif de régulation de dépôts (DCA) comme composant (D).
  10. Carburant essence selon la revendication 8, comprenant en outre au moins un additif de régulation de dépôts possédant au moins un radical hydrocarboné hydrophobe doté d'un poids moléculaire moyen en nombre (Mn) de 85 à 20 000 et au moins un groupement polaire sélectionné dans le groupe constitué par
    (Da) des groupes mono- ou polyamino ayant jusqu'à 6 atomes d'azote, au moins un atome d'azote ayant des propriétés basiques ;
    (Df) des groupements polyoxy-C2- à C4-alkylène terminés par des groupes hydroxyle, des groupes mono- ou polyamino, au moins un atome d'azote ayant des propriétés basiques, ou par des groupes carbamate ;
    (Dg) des groupes ester carboxylique ;
    (Dh) des groupements dérivés d'anhydride succinique et ayant des groupes hydroxyle et/ou amino et/ou amido et/ou imido ; et/ou
    (Di) des groupements obtenus par une réaction de Mannich de phénols substitués avec des aldéhydes et des mono- ou polyamines.
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