WO2023217873A1 - Utilisation d'huile de base spécifique pour réduire les émissions de particules - Google Patents
Utilisation d'huile de base spécifique pour réduire les émissions de particules Download PDFInfo
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- WO2023217873A1 WO2023217873A1 PCT/EP2023/062442 EP2023062442W WO2023217873A1 WO 2023217873 A1 WO2023217873 A1 WO 2023217873A1 EP 2023062442 W EP2023062442 W EP 2023062442W WO 2023217873 A1 WO2023217873 A1 WO 2023217873A1
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- base oil
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
- C10M169/041—Mixtures of base-materials and additives the additives being macromolecular compounds only
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M171/00—Lubricating compositions characterised by purely physical criteria, e.g. containing as base-material, thickener or additive, ingredients which are characterised exclusively by their numerically specified physical properties, i.e. containing ingredients which are physically well-defined but for which the chemical nature is either unspecified or only very vaguely indicated
- C10M171/02—Specified values of viscosity or viscosity index
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M101/00—Lubricating compositions characterised by the base-material being a mineral or fatty oil
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M143/00—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation
- C10M143/04—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation containing propene
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M143/00—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation
- C10M143/10—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation containing aromatic monomer, e.g. styrene
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M143/00—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation
- C10M143/12—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation containing conjugated diene
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
- C10M145/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C10M145/10—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate
- C10M145/12—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate monocarboxylic
- C10M145/14—Acrylate; Methacrylate
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/024—Propene
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/04—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing aromatic monomers, e.g. styrene
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/06—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing conjugated dienes
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/08—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
- C10M2209/084—Acrylate; Methacrylate
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
- C10N2020/02—Viscosity; Viscosity index
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/02—Pour-point; Viscosity index
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/50—Emission or smoke controlling properties
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/25—Internal-combustion engines
Definitions
- the present invention relates to the use of a specific base oil to reduce particulate emissions from motor vehicles.
- the first European standard on emissions from combustion engine vehicles was introduced.
- the Euro VI anti-pollution standard (EC standard 595/2009) concerns heavy-duty engines.
- This standard targets in particular four pollutants: carbon monoxide (CO), unburned hydrocarbons (HC), nitrogen oxides (NOx), mass (PM) and number (PN) of particles, including soot, the last two remaining the most problematic for the depollution system of modern engines.
- CO2 carbon monoxide
- HC unburned hydrocarbons
- NOx nitrogen oxides
- PM mass
- PN number
- lubricating compositions specifically adapted to reduce the number of particles emitted from the exhaust of a vehicle, in particular a vehicle comprising at least one spark ignition engine, preferably a combustion engine, in particular vehicles heavy or light, for example heavy goods vehicles.
- An objective of the present invention is therefore to provide a suitable lubricating composition having a direct impact on particle emissions.
- Another objective of the present invention is to provide a specific base oil allowing a lubricating composition to have a direct impact on particle emissions. Still other objectives will appear on reading the description of the invention which follows.
- a lubricating composition comprising a base oil or a mixture of base oil having a viscosity (BOV or base oil viscosity) less than or equal to 4 .5 mm 2 /s, in particular less than or equal to 4 mm 2 /s, to reduce particle emissions from an engine.
- BOV base oil viscosity
- the present invention also relates to the use of a lubricating composition
- a lubricating composition comprising a base oil or a mixture of base oils, to reduce particulate emissions from an engine, wherein said base oil or said mixture of oils base oil has a kinematic viscosity (BOV or viscosity of the base oil) measured at 100°C, according to the ASTM D445 standard, less than or equal to 4.5 mm 2 /s, and in which said lubricating composition has a viscosity at 150°C and under constant shear greater than or equal to 2.4 mPa.s -1 .
- “particles” means particles emitted in the exhaust of motorized vehicles.
- particles includes the term soot, which forms, oxidizes and contains unburned hydrocarbons, oxygenated derivatives (ketones, esters, aldehydes, lactones, ethers, organic acids) and polycyclic aromatic hydrocarbons (the famous PAHs) accompanied by their nitrated, oxygenated derivatives, etc.
- soot forms, oxidizes and contains unburned hydrocarbons, oxygenated derivatives (ketones, esters, aldehydes, lactones, ethers, organic acids) and polycyclic aromatic hydrocarbons (the famous PAHs) accompanied by their nitrated, oxygenated derivatives, etc.
- PAHs polycyclic aromatic hydrocarbons
- the present invention allows the reduction of emissions of particles having a size greater than or equal to 10 nm, for example greater than or equal to 23 nm, or in particular equal to 10 nm.
- particle size means particles, or agglomerate of particles whose size is from 10 to 100 nm, for example from 10 to 60 nm, and more preferably from 10 to 40 nm, for example between 23 and 100 nm, preferably between 23 and 60 nm, and more preferably between 23 and 40 nm.
- the size of the particles can in particular be measured by spectrometry, for example using a spectrometer manufactured by the company Cambustion under the commercial reference DMS500.
- the number of particles according to their size can be determined for example using particle counters such as the APC 489 marketed by the company AVL or the MEXA-2000 SPCS marketed by the company HORIBA.
- reduction of particle emissions we mean in particular the reduction in the number of particles, in particular particles having a size greater than or equal to 10 nm, for example greater than or equal to 23 nm.
- the present application concerns the reduction of soot emissions.
- the present invention relates to the reduction of particle emissions, preferably particles of size greater than or equal to 10 nm, for example greater than or equal to 23 nm, preferably soot, over the entire regulatory cycle for applications Heavy Goods Vehicles WHTC (World Harmonized Transient Cycle).
- the present invention relates to the reduction of the emission of particles, preferably particles of size less than or equal to 23 nm, preferably soot, during urban (low speed), peri-urban (moderate speed) cycles. and road (high speed) defined by the WLTC (or WLTP) (harmonized global testing procedure for light vehicles) and across the entire WLTC, but also on the RDE (Real Drive Emissions) cycle.
- the viscosity (also called BOV for base oil viscosity) is a kinematic viscosity and is measured at 100°C, according to the ASTM D445 standard.
- the viscosity of the base oil at 100°C thus corresponds to the kinematic viscosity of the mixture of base oils at 100°C of the formulation before the addition of additives, a viscosity modifier and a pour point depressant.
- a base oil mixture it must be understood that it is the viscosity of the base oil mixture which is less than or equal to 4.
- the base oil or the mixture of base oil has a viscosity of between 1.5 and 4.
- the base oil or the mixture of base oils has a kinematic viscosity, measured at 100°C, of 1.5 to 4.5 mm 2 /s, in particular 1.5 to 4 mm 2 /s.
- the kinematic viscosity, measured at 100°C, of the base oil or the mixture of base oils is between 3 and 4.5 mm 2 /s, and preferably between 4 and 4, 5 mm 2 /s.
- the viscosity index of the base oil or mixture of base oils is greater than or equal to 130, preferably greater than or equal to 150.
- the viscosity index is calculated by measuring the kinematic viscosity at 40°C and 100°C. These measurements are then compared to the results of two reference oils. Its calculation method is described in standard ASTM D2270.
- the lubricating composition according to the invention has for example a grade according to the SAEJ300 classification of type XW-(Y) with preferably 12 or 30 or 40.
- the base oils used in the lubricating compositions of the invention may be oils of mineral or synthetic origin belonging to groups I to V according to the classes defined by the API classification (or their equivalents according to the ATIEL classification (Table 1) or their mixtures.
- the mineral base oils of the invention include any type of base oil obtained by atmospheric and vacuum distillation of crude oil, followed by refining operations such as solvent extraction, deasphalting, solvent dewaxing, hydrotreatment, hydrocracking, hydroisomerization and hydrofinishing.
- the base oils of the lubricating compositions used according to the invention can also be chosen from synthetic oils, such as certain esters of carboxylic acids and alcohols, and polyalphaolefins.
- Polyalphaolefins used as base oil are for example obtained from monomers comprising from 4 to 32 carbon atoms, for example from octene or decene, and for which the viscosity at 100°C is between 1.5 and 15 mm 2 .s -1 according to ASTM D445.
- the lubricating composition used according to the invention may comprise at least 50% by weight of base oil relative to the total weight of the composition. More advantageously, the lubricating composition according to the invention comprises at least 60% by weight, or even at least 70% by weight, of base oils relative to the total weight of the lubricating composition. More preferably, the lubricating composition according to the invention comprises from 50% to 97% by weight of base oils, preferably from 50% to 85% by weight of base oils, or from 75% to 97% by weight of base oils relative to the total weight of the composition. According to one embodiment, the quantity of base oil or mixture of base oils is between 50% and 97% by weight relative to the total weight of the lubricating composition as defined above.
- the lubricating composition used according to the invention preferably has a viscosity at 150°C and under constant shear greater than or equal to 2.4 mPa.s -1 .
- This viscosity is also designated by the term HTHS 150.
- the HTHS viscosity (from English: “High Temperature, High Shear”) is a measurement of the viscosity of the residual oil film under high stress (shearing under mechanical pressure) at high temperature.
- the HTHS 150 viscosity value is measured at 150°C. These values are measured according to CEC L-036-90 or ASTM D4683 standards.
- the viscosity at 150°C, and under constant shear, of the lubricating composition is between 2.4 mPa.s -1 to 5 mPa.s -1 , preferably 2 .6 mPa.s -1 to 5 mPa.s -1 .
- the lubricating composition used according to the invention has a grade according to the SAEJ300 classification of type XW-(Y) with 8 to 40, preferably 12, 20, 30 or 40, preferably 20 or 30.
- the lubricating composition used according to the invention may also comprise at least one additive improving the viscosity index of the hydrogenated butylene and styrene polymer type, of the ethylene propylene copolymer type, or even of the polymethacrylate polymer type, preferably a polymer butylene and hydrogenated styrene.
- the lubricating composition according to the invention can therefore also comprise at least one additive improving the viscosity index chosen from the group consisting of hydrogenated butylene and styrene polymers, ethylene propylene copolymers and polymethacrylate polymers, said additive improving the index of viscosity preferably being a polymer of butylene and hydrogenated styrene.
- the lubricating composition according to the invention may comprise from 0.1% to 15% by weight relative to the total weight of lubricating composition, of additive improving the viscosity index.
- the composition of the invention may also comprise at least one additive. Numerous additives can be used in the lubricating compositions according to the invention.
- the preferred additives for the lubricating composition according to the invention are chosen from detergent additives, the friction modifier additives differ from the molybdenum compounds defined above, extreme pressure additives, dispersants, pour point activators, anti- foam, thickeners and mixtures thereof.
- the lubricating compositions according to the invention comprise at least one extreme pressure additive, or a mixture.
- Anti-wear additives and extreme pressure additives protect surface friction by forming a protective film adsorbed on its surfaces.
- the anti-wear additives are chosen from additives comprising phosphorus and sulfur such as alkylthiophosphate metals, in particular zinc alkylthiophosphate, and more precisely zinc dialkyldithiophosphate or ZnDTP.
- the preferred compounds are of formula Zn((SP(S)(OR)(OR'))2, in which R and R', identical or different, independently represent an alkyl group, preferably an alkyl group comprising from 1 to 18 carbon atoms.
- Amine phosphates are also anti-wear additives which can be used in the lubricating compositions of the invention.
- the atoms of phosphorus provided by these additives can act as poison in the catalytic systems of automobiles since they generate ash. It is possible to minimize these effects by substituting part of the amine phosphates with additives which do not provide phosphorus, such as for example polysulphides, in particular olefins containing sulfur.
- the lubricating compositions according to the invention may comprise from 0.01% to 6% by weight, preferably from 0.05% to 4% by weight, more preferably from 0.1% to 2% by weight relative to the total weight of lubricating composition, anti-wear and extreme pressure additives.
- the lubricating compositions according to the invention comprise from 0.01% to 6% by weight, preferably from 0.05% to 4% by weight, more preferably from 0.1% to 2% by weight relative to the weight. total lubricating composition, anti-wear additives (or anti-wear compound).
- the compositions according to the invention may comprise at least one friction modifier additive different from the molybdenum compounds of the invention.
- the friction modifier additives can in particular be chosen from compounds providing metallic elements and ash-free compounds. Among the compounds providing metallic elements, mention may be made of transition metal complexes such as Mo, Sb, Sn, Fe, Cu, Zn for which the ligands may be hydrocarbon compounds comprising oxygen, nitrogen atoms , sulfur or phosphorus.
- the ashless friction modifier additives are generally of organic origin or can be chosen from fatty acid monoesters and polyols, alkoxylated amines, alkoxylated fatty amines, fatty epoxides, fatty epoxy borates, amines fats or glycerol acid esters.
- fatty compounds comprising at least one hydrocarbon group comprising from 10 to 24 carbon atoms.
- the lubricating composition according to the invention may comprise from 0.01% to 2% by weight or from 0.01% to 5% by weight, preferably from 0.1% to 1.5% by weight or from 0.
- the lubricating composition according to the invention may comprise at least one antioxidant additive.
- Antioxidant additives generally delay the degradation of the lubricating composition. This degradation is most often expressed by the formation of deposits, by the presence of sludge or by an increase in the viscosity of the lubricating composition.
- Antioxidant additives generally act as free radical inhibitors or destructive hydroperoxide inhibitors.
- phenolic type antioxidants amine type antioxidants, antioxidants containing sulfur and phosphorus.
- Phenolic antioxidant additives can be ash-free or in the form of neutral or basic metal salts.
- the antioxidant additives may in particular be chosen from sterically hindered phenols, sterically hindered phenol esters, sterically hindered phenols comprising a thioether bridge, diphenylamines, diphenylamines substituted with at least one C1 to C12 alkyl group, N,N '-dialkyl-aryl-diamines and mixtures thereof.
- the sterically hindered phenols are chosen from compounds comprising a phenol group for which at least one of the carbon atoms in the vicinity of the carbon atom carrying the alcohol function is substituted by at least one alkyl group in C1 to C10, preferably a C1 to C6 alkyl group, preferably a C4 alkyl group, preferably a tert-butyl group.
- Amino compounds are another class of antioxidant additives that can be used, optionally in combination with phenolic antioxidant additives.
- amine compounds are aromatic amines, for example aromatic amines of formula NRaRbRc in which Ra represents an aliphatic group or an aromatic group, optionally substituted, Rb represents an aromatic group, optionally substituted, Rc represents a hydrogen atom, an alkyl group, an aryl group or a group of formula RdS(O)zRe in which Rd represents an alkylene or alkenylene group, Re represents an alkyl group, an alkenyl group or an aryl group and z represents 0, 1 or 2.
- Sulfur-containing alkyl phenols or their alkali or alkaline earth metal salts can also be used as antioxidant additives.
- antioxidant additives are compounds comprising copper, for example copper thio- or dithio-phosphate, copper salts and carboxylic acids, dithiocarbamates, sulfonates, phenates, copper acetylacetonates. Copper I and II salts, succinic acid or anhydride salts can also be used.
- the lubricating compositions used according to the invention can also comprise any type of antioxidant known to those skilled in the art.
- the lubricating composition used comprises at least one ash-free antioxidant additive.
- the lubricating composition used according to the invention comprises from 0.1% to 2% by weight relative to the total weight of the composition, of at least one antioxidant additive.
- the lubricating composition used according to the invention may also comprise at least one detergent additive.
- Detergent additives generally make it possible to reduce the formation of deposits on the surface of metal parts by dissolving secondary oxidation and combustion products.
- the detergent additives which can be used in the lubricating compositions according to the invention are generally known to those skilled in the art.
- the detergent additives may be anionic compounds comprising a long lipophilic hydrocarbon chain and a hydrophobic head.
- the associated cation may be a metal cation of an alkali or alkaline earth metal.
- the detergent additives are preferably chosen from alkali or alkaline earth metal salts of carboxylic acids, sulfonates, salicylates, naphthenates, as well as phenate salts.
- the alkali and alkaline earth metals are preferably calcium, magnesium, sodium or barium.
- These metal salts generally include the metal in stoichiometric quantity or in excess, that is to say in a content greater than the stoichiometric content.
- the lubricating composition used according to the invention may comprise from 0.5% to 8% or from 2% to 4% by weight of overbased detergent additive relative to the total weight of the lubricating composition.
- the lubricating composition used according to the invention can also comprise a pour point depressant additive.
- a pour point depressant additive By slowing down the formation of paraffin crystals, the pour point depressant additive generally improves the cold behavior of the lubricating composition according to the invention.
- a pour point depressant additive mention may be made of alkyl polymethacrylates, polyacrylates, polyarylamides, polyalkylphenols, polyalkylnaphthalene, alkyl polystyrenes.
- the lubricating composition according to the invention may also comprise a dispersing agent.
- the dispersing agents can be chosen from Mannich bases, succinimides and their derivatives.
- the lubricating composition according to the invention may comprise from 0.2% to 10% by weight of dispersing agent relative to the total weight of lubricating composition.
- the lubricating composition according to the invention may also comprise at least one thickening agent.
- the lubricating composition according to the invention may also comprise an antifoaming agent and a demulsifying agent.
- the present invention also relates to the use of a base oil of viscosity less than or equal to 4 in an engine lubricating composition to reduce particulate emissions from said engine.
- the present invention also relates to the use as defined above, in which the reduction of particle emissions concerns the WLTC cycle or the RDE cycle, and more particularly the reduction of particle emissions of size greater than or equal to 10 nm, for example between 10 nm and 40 nm.
- the present invention also relates to a method for reducing the emission of particles in an engine, preferably a gas, gasoline, diesel or hybrid engine, comprising the use of a lubricating composition comprising a base oil of lower viscosity or equal to 4.
- the present invention also relates to a method for reducing the emission of particles in an engine, in particular a spark ignition engine, for example a combustion engine, preferably a gas, gasoline, diesel or even hybrid engine, comprising the use of a lubricating composition comprising a base oil or a mixture of base oils, in which said base oil or said mixture of base oils has a kinematic viscosity (BOV or base oil viscosity) measured at 100°C, according to the ASTM D445 standard, less than or equal to 4.5 mm 2 /s, and in which said lubricating composition has a viscosity at 150°C and under constant shear greater than or equal to 2.4 mPa.s - 1 .
- a lubricating composition comprising a base oil or a mixture of base oils, in which said base oil or said mixture of base oils has a kinematic viscosity (BOV or base oil viscosity) measured at 100°C, according to the ASTM D445 standard,
- the present invention also relates to a method for reducing the emission of particles in an engine, preferably a gas, gasoline, diesel or hybrid engine, lubricated by a lubricating composition comprising the addition to said lubricating composition of an oil. of base viscosity less than or equal to 4.
- the present invention also relates to a method of reducing the emission of particles in an engine, preferably a gas, gasoline, diesel or even hybrid engine, lubricated by a lubricating composition
- a lubricating composition comprising a base oil or a mixture of base oils, in which said base oil or said mixture of base oils has a kinematic viscosity (BOV or base oil viscosity) measured at 100°C, according to the standard ASTM D445, less than or equal to 4.5 mm 2 /s, and in which said lubricating composition has a viscosity at 150°C and under constant shear greater than or equal to 2.4 mPa.s -1 .
- the particles, base oil and lubricating composition are as defined above.
- the present invention covers all motorized vehicles, in particular vehicles comprising a 2-stroke or 4-stroke engine, gasoline, diesel, hybrid or gas engines.
- the present invention covers all motorized vehicles, preferably comprising at least one spark ignition engine, preferably combustion engine, in particular heavy vehicles or light vehicles, preferably heavy goods vehicles.
- Example 2 Measurement of the number of particles emitted and Fuel Eco The compositions of Example 1 were tested on a WHTC cycle and the quantity of particles having a size greater than or equal to 10 nm emitted at the end of each cycle was measured . Engine tests were carried out on turbocharged in-line 6-cylinder engines.
- the tests are carried out at the same engine starting temperature. All other test bench conditions were also kept constant. Sampling for exhaust gas measurements was carried out in the raw exhaust gas before the exhaust system but after the treatment systems. Thus, the effects observed are indeed due to the sole use of the lubricating composition and not to any other criterion such as temperature, humidity, etc.
- the particle size distribution was measured in parallel by a Cambustion differential mobility spectrometer (DMS500). It uses a high-voltage discharge to charge each particle in proportion to its surface area. The charged particles are introduced into a classification section with a strong radial electric field. This field causes particles to drift through a flow in a column toward the electrometer detectors. Particles are detected at different distances in the column, depending on their aerodynamic resistance to load ratio.
- Example 3 1st test campaign Preparation of the lubricating compositions
- the lubricating compositions were prepared according to Table 5 below. Table 5 The figures in Table 5 correspond to percentages by weight relative to the total weight of the composition. The characteristics of the lubricating compositions are indicated in Table 6 below: Table 6 Measurement of the number of particles emitted
- the compositions of Example 3 underwent the WLTC and RDE tests and the quantity of particles per kilometers traveled having a size greater than or equal to 10 nm emitted at the end of each cycle was measured.
- Table 8 The results in Tables 7 and 8 demonstrate that the compositions used according to the invention effectively make it possible to reduce the number of particles of size greater than or equal to 10 nm, on the WLTC or RDE cycle. Tables 9 and 10 below summarize the results obtained on the RDE or WLTC cycle for composition 8 with regard to particles of size 10 nm. These results show the repeatability of the effect of reducing the emission of PN10 particles. Table 9 Table 10 5
- Example 4 2nd test campaign A second test campaign was carried out.
- Lubricants differ in viscosity grade but also in the composition of additives and base oils.
- Table 11 the characteristics of the lubricating compositions are indicated which demonstrate an influence of the viscosity grade on the reduction of the PN10 number, independently of the composition: Table 10
- Table 11 indicates the results obtained on the WLTC cycle with regard to particles of size 10 nm. Table 11 These results show that the use of a lubricating composition according to the invention makes it possible to reduce the quantity of particles having a size greater than or equal to 10 nm, released in the exhaust.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
Description
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2024566199A JP2025516067A (ja) | 2022-05-11 | 2023-05-10 | 粒子排出物を削減するための特定の基油の使用 |
| KR1020247040738A KR20250010029A (ko) | 2022-05-11 | 2023-05-10 | 미립자 배출을 감소시키기 위한 특정 베이스 오일의 용도 |
| US18/864,952 US20250340796A1 (en) | 2022-05-11 | 2023-05-10 | Use of specific base oil for reducing particulate emissions |
| CN202380039546.5A CN119173613A (zh) | 2022-05-11 | 2023-05-10 | 特定基础油用于减少颗粒物排放的用途 |
| EP23726328.0A EP4522710A1 (fr) | 2022-05-11 | 2023-05-10 | Utilisation d'huile de base spécifique pour réduire les émissions de particules |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2204459A FR3135464B1 (fr) | 2022-05-11 | 2022-05-11 | Utilisation d’huile de base spécifique pour réduire les émissions de particules |
| FRFR2204459 | 2022-05-11 | ||
| FRFR2210488 | 2022-10-12 | ||
| FR2210488A FR3140887B1 (fr) | 2022-10-12 | 2022-10-12 | Utilisation d’une huile de base spécifique pour réduire les émissions de particules |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023217873A1 true WO2023217873A1 (fr) | 2023-11-16 |
Family
ID=86603733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2023/062442 Ceased WO2023217873A1 (fr) | 2022-05-11 | 2023-05-10 | Utilisation d'huile de base spécifique pour réduire les émissions de particules |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20250340796A1 (fr) |
| EP (1) | EP4522710A1 (fr) |
| JP (1) | JP2025516067A (fr) |
| KR (1) | KR20250010029A (fr) |
| CN (1) | CN119173613A (fr) |
| WO (1) | WO2023217873A1 (fr) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1567622B1 (fr) * | 2002-11-15 | 2007-08-22 | Bp Oil International Limited | Procede de reduction d'emissions de particules |
| FR3108621A1 (fr) * | 2020-03-25 | 2021-10-01 | Total Marketing Services | Utilisation de polymère d’alkyle métacrylate pour réduire les émissions de particules |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3037969B1 (fr) * | 2015-06-29 | 2017-08-11 | Total Marketing Services | Polyolefines lubrifiantes de basse viscosite |
| US11365367B2 (en) * | 2017-06-27 | 2022-06-21 | The Lubrizol Corporation | Lubricating composition for and method of lubricating an internal combustion engine |
| CA3068707C (fr) * | 2017-06-30 | 2024-03-05 | Chevron Oronite Company Llc | Huiles de moteur a faible viscosite contenant des detergents a base de composes phenoliques isomerises |
| TWI873087B (zh) * | 2017-12-21 | 2025-02-21 | 美商艾克頌美孚技術工程公司 | 第ⅲ類基礎油及潤滑劑組成物 |
| TWI891600B (zh) * | 2017-12-21 | 2025-08-01 | 美商艾克頌美孚技術工程公司 | 第ⅲ類基礎油及潤滑油組成物 |
| US20200024537A1 (en) * | 2018-02-22 | 2020-01-23 | Exxonmobil Research And Engineering Company | Low viscosity low volatility benzoate monoester lubricating oil base stocks and methods of use thereof |
| US20200102519A1 (en) * | 2018-09-27 | 2020-04-02 | Exxonmobil Research And Engineering Company | Low viscosity lubricating oils with improved oxidative stability and traction performance |
| WO2020132078A1 (fr) * | 2018-12-20 | 2020-06-25 | Exxonmobil Research And Engineering Company | Compositions d'huile lubrifiante à faible viscosité ayant un point éclair croissant |
| EP4045619A1 (fr) * | 2019-10-15 | 2022-08-24 | The Lubrizol Corporation | Composition lubrifiante à bon rendement énergétique |
| WO2021178047A1 (fr) * | 2020-03-03 | 2021-09-10 | Exxonmobil Research And Engineering Company | Compositions lubrifiantes d'huile de moteur non newtonienne pour une économie de carburant supérieure |
| EP3882330B1 (fr) * | 2020-03-20 | 2025-01-01 | Chevron Japan Ltd. | Composition d'huile lubrifiante à faible viscosité |
| WO2023122405A1 (fr) * | 2021-12-21 | 2023-06-29 | ExxonMobil Technology and Engineering Company | Compositions lubrifiantes d'huile moteur et leurs procédés de fabrication ayant une consommation d'huile supérieure |
-
2023
- 2023-05-10 WO PCT/EP2023/062442 patent/WO2023217873A1/fr not_active Ceased
- 2023-05-10 KR KR1020247040738A patent/KR20250010029A/ko active Pending
- 2023-05-10 US US18/864,952 patent/US20250340796A1/en active Pending
- 2023-05-10 JP JP2024566199A patent/JP2025516067A/ja active Pending
- 2023-05-10 CN CN202380039546.5A patent/CN119173613A/zh active Pending
- 2023-05-10 EP EP23726328.0A patent/EP4522710A1/fr active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1567622B1 (fr) * | 2002-11-15 | 2007-08-22 | Bp Oil International Limited | Procede de reduction d'emissions de particules |
| FR3108621A1 (fr) * | 2020-03-25 | 2021-10-01 | Total Marketing Services | Utilisation de polymère d’alkyle métacrylate pour réduire les émissions de particules |
Non-Patent Citations (1)
| Title |
|---|
| PIRJOLA LIISA ET AL: "Effects of Fresh Lubricant Oils on Particle Emissions Emitted by a Modern Gasoline Direct Injection Passenger Car", ENVIRONMENTAL SCIENCE & TECHNOLOGY, vol. 49, no. 6, 17 March 2015 (2015-03-17), US, pages 3644 - 3652, XP093004153, ISSN: 0013-936X, DOI: 10.1021/es505109u * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP4522710A1 (fr) | 2025-03-19 |
| CN119173613A (zh) | 2024-12-20 |
| KR20250010029A (ko) | 2025-01-20 |
| JP2025516067A (ja) | 2025-05-26 |
| US20250340796A1 (en) | 2025-11-06 |
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