EP4680702A1 - Formulation d'huile de moteur écologique pour système de post-traitement - Google Patents

Formulation d'huile de moteur écologique pour système de post-traitement

Info

Publication number
EP4680702A1
EP4680702A1 EP24718954.1A EP24718954A EP4680702A1 EP 4680702 A1 EP4680702 A1 EP 4680702A1 EP 24718954 A EP24718954 A EP 24718954A EP 4680702 A1 EP4680702 A1 EP 4680702A1
Authority
EP
European Patent Office
Prior art keywords
ppm
alcohols
lubricating oil
oil composition
octyl
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP24718954.1A
Other languages
German (de)
English (en)
Inventor
David S. Lee
Ramoun Mourhatch
Michael Mclaughlin
Patrick Bohan
Taiki Hattori
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chevron Oronite Co LLC
Original Assignee
Chevron Oronite Co LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chevron Oronite Co LLC filed Critical Chevron Oronite Co LLC
Publication of EP4680702A1 publication Critical patent/EP4680702A1/fr
Pending legal-status Critical Current

Links

Classifications

    • 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
    • C10M137/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus
    • C10M137/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus having no phosphorus-to-carbon bond
    • C10M137/04—Phosphate esters
    • C10M137/10—Thio derivatives
    • 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
    • C10M137/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus
    • C10M137/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus having no phosphorus-to-carbon bond
    • C10M137/04—Phosphate esters
    • C10M137/10—Thio derivatives
    • C10M137/105—Thio derivatives not containing metal
    • 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
    • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04—Phosphate esters
    • C10M2223/045—Metal containing thio derivatives
    • 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
    • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04—Phosphate esters
    • C10M2223/047—Thioderivatives not containing metallic elements
    • 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
    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/04—Groups 2 or 12
    • 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
    • C10N2030/38—Catalyst protection, e.g. in exhaust gas converters
    • 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
    • C10N2040/252—Diesel engines

Definitions

  • This disclosure relates to engine oil formulations. More specifically, this disclosure relates to engine oil formulated with phosphorus-containing additive designed to reduce emissions from an internal combustion engine.
  • Aftertreatment system is a method or device that aims to reduce harmful exhaust emissions from internal combustion engines.
  • Some aftertreatment systems may employ a diesel particulate filter (DPF) which trap emission particles.
  • DPF diesel particulate filter
  • SCR selective catalytic reduction
  • NO X tailpipe nitrogen oxide
  • N2 diatomic nitrogen
  • Potential drawbacks of SCR are its susceptibility to plugging and poisoning from soot and ash. In particular, the presence of metals from engine oil can poison the catalysts used in selective catalytic reduction.
  • a method of reducing catalyst poisoning in a diesel engine aftertreatment system comprising a selective catalytic reduction device, the method comprising: lubricating the engine with a lubricating oil composition comprising: a major amount of oil of lubricating viscosity; and a phosphorus-containing additive.
  • a lubricating oil composition in a diesel engine aftertreatment system comprising a selective catalytic reduction device, the lubricating oil composition comprising: a major amount of oil of lubricating viscosity; and a phosphorus-containing additive.
  • Aftertreatment systems may feature selective catalytic reduction which is a means of converting nitrogen oxide (NO X ) with the aid of a catalyst into diatomic nitrogen (N2) and water (H2O).
  • NO X nitrogen oxide
  • N2O diatomic nitrogen
  • H2O water
  • This reduction chemistry takes place as exhaust gases pass through a catalyst chamber.
  • a reductant is injected and mixed with the exhaust gases.
  • the reductant typically ammonia
  • its precursors e.g., aqueous ammonia, urea
  • Catalysts include oxides of base metals (such as molybdenum and tungsten), zeolites, metals, or activated carbon.
  • the present disclosure relates to a lubricating oil composition formulated to enhance or improve the performance of an aftertreatment system, particularly one that is equipped with selective catalytic reduction system.
  • the specific formulation of these lubricating oil compositions is critical because metals from commonly used lubricant additives such as detergents (e.g., salicylates, sulfonates, phenates) or anti-wear agents (e.g., zinc dithiophosphates) are considered catalyst poisoning compounds.
  • the lubricating oil composition of the present disclosure includes base oil and a phosphorus-containing additive.
  • the present disclosure provides a method of lubricating a diesel engine or reducing catalyst poisoning in a diesel engine equipped with an aftertreatment system comprising a selective catalytic reduction system. In some embodiments, the present disclosure provides a method for improving the performance of a diesel engine equipped with an aftertreatment system comprising a selective catalytic reduction system. In some embodiments, the present disclosure provides a use of a lubricating oil composition for a diesel engine equipped with an aftertreatment system comprising a selective catalytic reduction system.
  • the lubricating oil composition of this disclosure reduces harmful emissions by reducing the poisoning of catalysts which are used to convert harmful emissions into less harmful compounds.
  • the lubricating oil composition improves the performance of the selective catalytic reduction system.
  • the lubricating oil composition of the present invention includes a phosphorus-containing additive.
  • the one or more phosphorus-containing additives may be a metal-containing phosphorus-containing compound such as zinc dithiophosphate (ZnDTP) which is also referred to as zinc dihydrocarbyldithiophosphate (ZDDP) or an ashless phosphorus-containing compound such as dithiophosphoric acid or ashless dithiophosphate.
  • ZnDTP zinc dithiophosphate
  • ZDDP zinc dihydrocarbyldithiophosphate
  • ashless phosphorus-containing compound such as dithiophosphoric acid or ashless dithiophosphate.
  • phosphorus-containing additive is present in the lubricating oil composition in an amount necessary to provide a desirable performance benefit.
  • the phosphorus-containing additive may be present in about 4 mM to about 40 mM based on total weight of the lubricating oil composition, such as from about 4 mM to about 40 mM, about 4 mM to about 35 mM, about 4 mM to about 30 mM, about 4 mM to about 25 mM, about 4 mM to about 20 mM, about 4 mM to about 15 mM, about 4 mM to about 10 mM, about 6 mM to about 40 mM, about 6 mM to about 35 mM, about 6 mM to about 30 mM, about 6 mM to about 25 mM, about 6 mM to about 20 mM, about 6 mM to about 15 mM, about 6 mM to about 10 mM, about 10 mM to about 40 mM, about
  • the lubricating oil composition includes about 250 to about 2500 ppm of Zn based on total weight of the lubricating oil composition such as from about 250 to about 2250 ppm, about 250 to about 2000 ppm, about 250 to about 1750 ppm, about 250 to about 1500 ppm, about 250 to about 1250 ppm, about 250 to about 1000 ppm, about 500 to about 2500 ppm, about 500 to about 2250 ppm, about 500 to about 2000 ppm, about 500 to about 1750 ppm, about 500 to about 1500 ppm, about 500 to about 1250 ppm, about 500 to about 1000 ppm, about 750 to about 2500 ppm, about 750 to about 2250 ppm, about 750 to about 2000 ppm, about 750 to about 1750 ppm, about 750 to about 1500 ppm, about 750 to about 1250 ppm, about 750 to about 1000 ppm, about 1000 to about 2500 ppm, about 1000 to about 2500 ppm,
  • the lubricating oil composition includes about 250 to about 2500 ppm of P based on total weight of the lubricating oil composition such as from about 250 to about 2250 ppm, about 250 to about 2000 ppm, about 250 to about 1750 ppm, about 250 to about 1500 ppm, about 250 to about 1250 ppm, about 250 to about 1000 ppm, about 500 to about 2500 ppm, about 500 to about 2250 ppm, about 500 to about 2000 ppm, about 500 to about 1750 ppm, about 500 to about 1500 ppm, about 500 to about 1250 ppm, about 500 to about 1000 ppm, about 750 to about 2500 ppm, about 750 to about 2250 ppm, about 750 to about 2000 ppm, about 750 to about 1750 ppm, about 750 to about 1500 ppm, about 750 to about 1250 ppm, about 750 to about 1000 ppm, about 1000 to about 2500 ppm, about 1000 to about 2500 ppm, about
  • Suitable zinc dithiophosphate can have the following formula: wherein Ri, R2, R3, and R4 are alkyl groups, wherein at least one of R1, R2, R3, or R4 has 3 carbon atoms and at least one of R1, R2, R3, or R4 has 8 carbon atoms.
  • At least one of R1, R2, R3, or R4 is a primary alkyl group. In some embodiments, at least one of R1, R2, R3, or R4 is a secondary alkyl group.
  • alkyl groups include n-propyl, isopropyl, n- octyl, isooctyl, 2-octyl, 3-octyl, 4-octyl, methylheptyl, 2-ethylhexyl, dimethylhexyl, cyclohexylethyl, ethylcyclohexyl, and vinylhexyl groups.
  • Zinc dithiophosphates are coordination compounds that can be synthesized from phosphorodithioic acids from which metal salts can be prepared.
  • Particularly useful ZDDPs include those derived from a mixture of alcohols.
  • the mixture of alcohols include C3 and C8 (C3/C8) alcohols.
  • Phosphorodithioic or dithiophosphoric acids are typically prepared by the reaction of phosphorous pentasulfide with an alcohol or phenol or mixtures of alcohols and/or phenols. The reaction involves at least four moles of the alcohol or phenol per mole of phosphorous pentasulfide, and may be carried out within the temperature range from about 50° C to about 200° C.
  • the preparation of O,O-di-(isopropyl/ 2-ethylhexyl) phosphorodithioic acid involves the reaction of phosphorous pentasulfide with at least four moles of a mixture of isopropanol and 2-ethylhexanol at about 100° C for up to 5 hours. Hydrogen sulfide is liberated, and the residue is the defined acid.
  • the preparation of the zinc salt of this acid may be by reaction with zinc oxide in the presence of a promoter (for example acetic acid) at elevated reaction temperature and extended reaction period.
  • a promoter for example acetic acid
  • the zinc dithiophosphate can also be referred to as zinc dialkyldithiophosphate.
  • the R groups i.e., R 1 , R 2 , etc.
  • the ZDDP comprises a specific ratio of C3 to C8 alcohols.
  • Suitable ratios can range from about 95/5 molar ratio of C3 to C8 alcohols down to about 5/95 of C3 to C8 alcohols, such as a 90/10 ratio of C3 to C8 alcohols, 85/15 ratio of C3 to C8 alcohols, 80/20 ratio of C3 to C8 alcohols, 75/25 ratio of C3 to C8 alcohols, 70/30 ratio of C3 to C8 alcohols, 60/40 ratio of C3 to C8 alcohols, 50/50 ratio of C3 to C8 alcohols, 40/60 ratio of C3 to C8 alcohols, 30/70 ratio to C3 to C8 alcohols, 25/75 ratio of C3 to C8 alcohols, 20/80 ratio of C3 to C8 alcohols, 10/90 ratio of C3 to C8 alcohols and so forth.
  • the present lubricating oil compositions may also contain conventional lubricant additives for imparting auxiliary functions to give a finished lubricating oil composition in which these additives are dispersed or dissolved.
  • the lubricating oil compositions can be blended with antioxidants, ashless dispersants, anti-wear agents, rust inhibitors, dehazing agents, demulsifying agents, friction modifiers, metal deactivating agents, pour point depressants, viscosity modifiers, antifoaming agents, co-solvents, package compatibilizers, corrosion-inhibitors, dyes, extreme pressure agents and the like and mixtures thereof.
  • a variety of the additives are known and commercially available. These additives, or their analogous compounds, can be employed for the preparation of the lubricating oil compositions of the invention by the usual blending procedures.
  • each of the foregoing additives when used, is used at a functionally effective amount to impart the desired properties to the lubricant.
  • a functionally effective amount of this ashless dispersant would be an amount sufficient to impart the desired dispersancy characteristics to the lubricant.
  • the concentration of each of these additives, when used may range, unless otherwise specified, from about 0.001 to about 20 wt. %, such as about 0.01 to about 10 wt. %.
  • the lubricating oil composition may optionally comprise an antioxidant compound.
  • the antioxidant is an aromatic amine antioxidant.
  • Typical aromatic amine antioxidants have at least two aromatic groups attached directly to one amine nitrogen.
  • Typical aromatic amine antioxidants have alkyl substituent groups of at least 6 carbon atoms.
  • aromatic amine antioxidants useful herein include 4,4'- dioctyldiphenylamine, 4,4'-dinonyldiphenylamine, N-phenyl-1 -naphthylamine, N-(4- tert-octyphenyl)-1 -naphthylamine, and N-(4-octylphenyl)-1 -naphthylamine.
  • Antioxidants may be present at 0.01 to 5 wt. % (e.g., 0.1 to 2 wt. %) of the lubricating oil composition.
  • the oil of lubricating viscosity (sometimes referred to as “base stock” or “base oil”) is the primary liquid constituent of a lubricant, into which additives and possibly other oils are blended, for example to produce a final lubricant (or lubricant composition).
  • a base oil which is useful for making concentrates as well as for making lubricating oil compositions therefrom, may be selected from natural (vegetable, animal or mineral) and synthetic lubricating oils and mixtures thereof.
  • Oils used as the base oil will be selected or blended depending on the desired end use and the additives in the finished oil to give the desired grade of engine oil, e.g. a lubricating oil composition having an Society of Automotive Engineers (SAE).
  • SAE Society of Automotive Engineers
  • the lubricating oil composition is a multi-grade oil for heavy duty or passenger car.
  • the multi-grade oil may have a viscosity grade SAE of OW-8, 0W- 12, OW-16, 0W-20, 0W-30, 0W-40, 0W-50, 0W-60, 5W, 5W-20, 5W-30, 5W-40, 5W- 50, 5W-60, 10W, 10W-20, 10W-30, 10W-40, 10W-50, 15W, 15W-20, 15W-30, or 15W-40.
  • SAE viscosity grade SAE of OW-8, 0W- 12, OW-16, 0W-20, 0W-30, 0W-40, 0W-50, 0W-60, 5W, 5W-20, 5W-30, 5W-40, 5W- 50, 5W-60, 10W, 10W-20, 10W-30, 10W-40, 10W-50, 15W, 15W-20, 15W-30, or 15W-40.
  • base stocks and base oils in this disclosure are the same as those found in American Petroleum Institute (API) Publication 1509 Annex E ("API Base Oil Interchangeability Guidelines for Passenger Car Motor Oils and Diesel Engine Oils," December 2016).
  • Group I base stocks contain less than 90% saturates and/or greater than 0.03% sulfur and have a viscosity index greater than or equal to 80 and less than 120 using the test methods specified in Table E-1.
  • Group II base stocks contain greater than or equal to 90% saturates and less than or equal to 0.03% sulfur and have a viscosity index greater than or equal to 80 and less than 120 using the test methods specified in Table E-1.
  • Group III base stocks contain greater than or equal to 90% saturates and less than or equal to 0.03% sulfur and have a viscosity index greater than or equal to 120 using the test methods specified in Table E-1.
  • Group IV base stocks are polyalphaolefins (PAO).
  • Group V base stocks include all other base stocks not included in Group I, II, III, or IV.
  • Natural oils include animal oils, vegetable oils (e.g., castor oil and lard oil), and mineral oils. Animal and vegetable oils possessing favorable thermal oxidative stability can be used. Of the natural oils, mineral oils are preferred. Mineral oils vary widely as to their crude source, for example, as to whether they are paraffinic, naphthenic, or mixed paraffinic-naphthenic. Oils derived from coal or shale are also useful. Natural oils vary also as to the method used for their production and purification, for example, their distillation range and whether they are straight run or cracked, hydrorefined, or solvent extracted.
  • Synthetic oils include hydrocarbon oil.
  • Hydrocarbon oils include oils such as polymerized and interpolymerized olefins (e.g., polybutylenes, polypropylenes, propylene isobutylene copolymers, ethylene-olefin copolymers, and ethylenealphaolefin copolymers).
  • Polyalphaolefin (PAO) oil base stocks are commonly used synthetic hydrocarbon oil.
  • PAOs derived from Cs to Cu olefins e.g., Cs, Cw, C12, C14 olefins or mixtures thereof, may be utilized.
  • base oils include non-conventional or unconventional base stocks that have been processed, preferably catalytically, or synthesized to provide high performance characteristics.
  • Non-conventional or unconventional base stocks/base oils include one or more of a mixture of base stock(s) derived from one or more Gas-to-Liquids (GTL) materials, as well as isomerate/isodewaxate base stock(s) derived from natural wax or waxy feeds, mineral and or non-mineral oil waxy feed stocks such as slack waxes, natural waxes, and waxy stocks such as gas oils, waxy fuels hydrocracker bottoms, waxy raffinate, hydrocrackate, thermal crackates, or other mineral, mineral oil, or even nonpetroleum oil derived waxy materials such as waxy materials received from coal liquefaction or shale oil, and mixtures of such base stocks.
  • Other base oils include Coal to liquid (CTL) products and alkyl-naphthalene.
  • Base oils for use in the lubricating oil compositions of present disclosure are any of the variety of oils corresponding to API Group I, Group II, Group III, Group IV, and Group V oils, and mixtures thereof, preferably API Group II, Group III, Group IV, and Group V oils, and mixtures thereof, more preferably the Group III to Group V base oils due to their exceptional volatility, stability, viscometric and cleanliness features.
  • the lubricating oil composition may have a high temperature shear (HTHS) viscosity at 150° C of 3.7 cP or less, such as 3.6 cP or less, 3.5 cP or less, 3.4 cP or less, 3.3 cP or less, 3.2 cP or less, 3.1 cP or less, 3.0 cP or less, 2.9 cP or less, 2.8 cP or less, 2.7 cP or less, 2.6 cP or less, 2.5 cP or less, 2.4 cP or less, 2.3 cP or less, 2.2 cP or less, 2.1 cP or less, 2.0 cP or less, 1.9 cP or less, 1.8 cP or less, 1.7 cP or less, 1.6 cP or less, 1.5 cP or less, 1.4 cP or less, 1.3 cP or less, 1.2 cP or less, 1.1 cP or less, 1.0 cP or less,
  • the lubricating oil composition may have a viscosity index of at least 135 (e.g., 135 to 400, or 135 to 250), at least 150 (e.g., 150 to 400, 150 to 250), at least 165 (e.g., 165 to 400, or 165 to 250), at least 190 (e.g., 190 to 400, or 190 to 250), or at least 200 (e.g., 200 to 400, or 200 to 250). If the viscosity index of the lubricating oil composition is less than 135, it may be difficult to improve fuel efficiency while maintaining the HTHS viscosity at 150° C. If the viscosity index of the lubricating oil composition exceeds 400, evaporation properties may be reduced, and deficits due to insufficient solubility of the additive and matching properties with a seal material may be caused.
  • the base oil may have a kinematic viscosity at 100°C (ASTM D445) in a range of 1.4 to 20 mm 2 /s such as 3 to 12 mm 2 /s, such as 3 to 11 mm 2 /s, 3 to 10 mm 2 /s,
  • the lubricating oil composition contains 0.8 to 1.5 wt% of ash, such as 0.8 to 1.4 wt%, 0.8 to 1.3 wt%, 0.8 to 1.2 wt%, 0.8 to 1.1 wt%, 0.8 to 1.0 wt%, 0.8 to 0.9 wt%, 0.9 to 1.5 wt%, 0.9 to 1.4 wt%, 0.9 to 1.3 wt%, 0.9 to 1.2 wt%, 0.9 to 1.1 wt%, 0.9 to 1.0 wt%, 1.0 to 1.5 wt%, 1.0 to 1.4 wt%, 1.0 to 1.3 wt%, 1.0 to 1.2 wt%, 1.0 to 1.1 wt%, 1.1 to 1.5 wt%, 1.1 to 1.4 wt%, 1.1 to 1.3 wt%, 1.1 to 1.2 wt%, 1.0 to 1.1 wt%, 1.1 to 1.5 wt%, 1.1 to 1.4
  • This test measures the reduction of the NOx conversion rate in a SCR catalyst after contamination with a lubricating oil.
  • the catalyst Before the SCR tests can be performed, the catalyst must be prepared, which involves taking solid vanadium EU6 catalyst monolith and crushing, filtering, hydrothermally aging, and impregnating/calcinating the material.
  • the catalyst material Once the catalyst material has been crushed & filtered, it is soaked in the oil samples and hot filtered until there is no visible oil.
  • the oil impregnated catalyst is calcinated under positive airflow to remove hydrocarbons.
  • the SCR tests were performed in typical diesel exhaust conditions (temperature ramped from 175 to 550 ,;, C). More specifically, the SCR catalyst materials came into contact with a simulated gas feed which is a mixture of NO (500ppm), NH3 (500ppm), H2O (5%), O2 (10%) and balancing amount of N2.
  • ranges from any lower limit may be combined with any upper limit to recite a range not explicitly recited, as well as, ranges from any lower limit may be combined with any other lower limit to recite a range not explicitly recited, in the same way, ranges from any upper limit may be combined with any other upper limit to recite a range not explicitly recited.
  • ranges from any upper limit may be combined with any other upper limit to recite a range not explicitly recited.
  • within a range includes every point or individual value between its end points even though not explicitly recited. Thus, every point or individual value may serve as its own lower or upper limit combined with any other point or individual value or any other lower or upper limit, to recite a range not explicitly recited.
  • compositions, an element or a group of elements are preceded with the transitional phrase “comprising,” it is understood that we also contemplate the same composition or group of elements with transitional phrases “consisting essentially of,” “consisting of,” “selected from the group of consisting of,” or “is” preceding the recitation of the composition, element, or elements and vice versa.

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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

La présente invention concerne un procédé de réduction de l'empoisonnement du catalyseur dans un moteur diesel équipé d'un système de post-traitement comprenant un dispositif de réduction catalytique sélective. Le procédé comprend la lubrification du moteur avec une composition d'huile lubrifiante. La composition d'huile lubrifiante comprend une quantité majeure d'huile de viscosité lubrifiante et un additif contenant du phosphore.
EP24718954.1A 2023-03-13 2024-03-12 Formulation d'huile de moteur écologique pour système de post-traitement Pending EP4680702A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202363451749P 2023-03-13 2023-03-13
PCT/US2024/019558 WO2024192015A1 (fr) 2023-03-13 2024-03-12 Formulation d'huile de moteur écologique pour système de post-traitement

Publications (1)

Publication Number Publication Date
EP4680702A1 true EP4680702A1 (fr) 2026-01-21

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EP24718954.1A Pending EP4680702A1 (fr) 2023-03-13 2024-03-12 Formulation d'huile de moteur écologique pour système de post-traitement

Country Status (5)

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EP (1) EP4680702A1 (fr)
JP (1) JP2026508942A (fr)
KR (1) KR20250161010A (fr)
CN (1) CN120981553A (fr)
WO (1) WO2024192015A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025264471A1 (fr) * 2024-06-17 2025-12-26 Chevron Oronite Company Llc Régulation améliorée de la viscosité à l'aide de dialkyldithiophosphates de zinc à chaîne courte

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1565961A (en) 1976-02-25 1980-04-23 Orobis Ltd Composition comprising a mixture of the zinc salts of o,o'-dialkyl dithiophosphoric acids
US4215067A (en) 1978-12-29 1980-07-29 Standard Oil Company (Indiana) Process for the preparation of zinc salts of dihydrocarbyldithiophosphoric acids
US4263150A (en) 1979-06-11 1981-04-21 The Lubrizol Corporation Phosphite treatment of phosphorus acid salts and compositions produced thereby
US4495075A (en) 1984-05-15 1985-01-22 Chevron Research Company Methods and compositions for preventing the precipitation of zinc dialkyldithiophosphates which contain high percentages of a lower alkyl group
US6569818B2 (en) * 2000-06-02 2003-05-27 Chevron Oronite Company, Llc Lubricating oil composition
JP4515797B2 (ja) * 2004-03-19 2010-08-04 新日本石油株式会社 ディーゼルエンジン用潤滑油組成物
EP1803793B1 (fr) * 2005-12-28 2015-06-17 Infineum International Limited Composiitons d'huile lubrifiante
EP2371934B1 (fr) * 2010-03-31 2017-03-15 Infineum International Limited Composition d'huile lubrifiante
WO2015138109A1 (fr) * 2014-03-12 2015-09-17 The Lubrizol Corporation Procédé de lubrification d'un moteur à combustion interne

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CN120981553A (zh) 2025-11-18
WO2024192015A1 (fr) 2024-09-19
JP2026508942A (ja) 2026-03-13
KR20250161010A (ko) 2025-11-14

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