EP2361297A1 - Réduction de la boue à forte teneur en eau dans des moteurs diesel - Google Patents

Réduction de la boue à forte teneur en eau dans des moteurs diesel

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Publication number
EP2361297A1
EP2361297A1 EP09740819A EP09740819A EP2361297A1 EP 2361297 A1 EP2361297 A1 EP 2361297A1 EP 09740819 A EP09740819 A EP 09740819A EP 09740819 A EP09740819 A EP 09740819A EP 2361297 A1 EP2361297 A1 EP 2361297A1
Authority
EP
European Patent Office
Prior art keywords
nitrogen
dispersants
percent
dispersant
aromatic
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.)
Withdrawn
Application number
EP09740819A
Other languages
German (de)
English (en)
Inventor
John J. Mullay
My Hang Truong
David A. Duncan
Patrick E. Mosier
Mary Galic Raguz
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.)
Lubrizol Corp
Original Assignee
Lubrizol Corp
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 Lubrizol Corp filed Critical Lubrizol Corp
Publication of EP2361297A1 publication Critical patent/EP2361297A1/fr
Withdrawn legal-status Critical Current

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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
    • C10M161/00—Lubricating compositions characterised by the additive being a mixture of a macromolecular compound and a non-macromolecular compound, each of these compounds being essential
    • 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
    • C10M157/00—Lubricating compositions characterised by the additive being a mixture of two or more macromolecular compounds covered by more than one of the main groups C10M143/00 - C10M155/00, each of these compounds being essential
    • C10M157/04—Lubricating compositions characterised by the additive being a mixture of two or more macromolecular compounds covered by more than one of the main groups C10M143/00 - C10M155/00, each of these compounds being essential at least one of them being a nitrogen-containing compound
    • 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
    • C10M169/048—Mixtures of base-materials and additives the additives being a mixture of compounds of unknown or incompletely defined constitution, non-macromolecular and macromolecular compounds
    • 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
    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
    • C10M2203/1006—Petroleum or coal fractions, e.g. tars, solvents, bitumen used as base material
    • 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
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/02—Hydroxy compounds
    • C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
    • C10M2207/026—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings with tertiary alkyl groups
    • 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
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/02—Hydroxy compounds
    • C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
    • C10M2207/028—Overbased salts thereof
    • 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
    • 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
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/101—Condensation polymers of aldehydes or ketones and phenols, e.g. Also polyoxyalkylene ether derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • 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
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/104—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms only
    • 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
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/105—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing three carbon atoms only
    • 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
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/106—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing four carbon atoms only
    • 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
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
    • C10M2215/064—Di- and triaryl amines
    • 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
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
    • C10M2215/24—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions having hydrocarbon substituents containing thirty or more carbon atoms, e.g. nitrogen derivatives of substituted succinic acid
    • C10M2215/28—Amides; Imides
    • 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
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/02—Sulfur-containing compounds obtained by sulfurisation with sulfur or sulfur-containing compounds
    • C10M2219/022—Sulfur-containing compounds obtained by sulfurisation with sulfur or sulfur-containing compounds of hydrocarbons, e.g. olefines
    • 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
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
    • C10M2219/046—Overbased sulfonic acid salts
    • 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
    • C10M2223/042—Metal salts thereof
    • 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
    • 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
    • C10N2030/04—Detergent property or dispersant property
    • 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
    • C10N2030/26—Waterproofing or water resistance
    • 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
    • C10N2030/66—Hydrolytic stability
    • 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

  • the disclosed technology relates to lubricant formulations and methods for reducing or eliminating accumulation of high-aqueous content sludge, or reducing its formation or viscosity, in internal combustion engines.
  • Modern engine oil formulations, in particular for diesel (compression ignited) engines contain a variety of additives to impart desired lubricating performance.
  • an unusual form of sludge has been observed accumulating in cooler portions of the engine, such as on a rocker cover. This sludge may also be observed on other parts of the engine.
  • this material is a sludge-like material that appears to be a combination of lubricant oil with relatively high amounts of water, e.g., up to 70-80 weight percent water. It is speculated that this sludge may arise due the accumulation of water from combustion in the lubricant oil, particularly when combustion products are not efficiently purged from the crankcase due to restricted ventilation. The accumulation of this sludge can lead to restrictive flow of lubricant and corrosion of metal surfaces. It is therefore desirable to reduce or eliminate the formation or accumulation of this sludge. [0003] A variety of lubricants have been used for lubricating internal combustion engines. For instance, U.S.
  • Patent 6,642,189 Kurihara et al., November 4, 2003, discloses engine oil compositions that may be used in motorcycle engines, automobile engines, diesel engines for land use, and marine diesel engines.
  • the lubricant contains a lubricating base oil and a polymethacrylate- based viscosity index improver. It may also contain a molybdenum dithiocar- bamate as well as one or more other engine oil additives.
  • detergents, dispersants, oxidation inhibitors, friction modifiers, corrosion inhibitors, demulsifying agents such as polyalkylene glycol-based non-ionic surfactants, metal deactivators, and antifoamers [0004] U.S.
  • Patent 5,198,135, Galic et al., March 30, 1993 discloses a crankcase lubricating oil composition containing as an antiemulsion agent an effective amount of a butylene oxide containing polymer.
  • Other components that may be present include a hydrocarbon-soluble ashless dispersant, an alkali or alkaline earth metal detergent, a zinc dialkyldithiophosphate, an antioxidant, a viscosity modifier, a rust inhibitor, and a pour point depressant.
  • U.S. Patent 3,509,052, Murphy, April 28, 1970 discloses improved lubricating composition which contain a demulsifier. The compositions reduce or eliminate the formation of sludge on the internal metal surfaces of internal combustion engines. Polyoxyalkylene polyols are preferred demulsifiers. The sludges have been found in the rocker arm covers and oil-fill caps of, particularly, smaller car engines.
  • the disclosed technology provides, in one embodiment, a method for reducing accumulation of high-aqueous content sludge in a sump-lubricated diesel engine lubricated with a lubricating oil formulation that contains at least 0.07 or at least 0.08 weight percent nitrogen derived from one or more nitrogen- containing ashless dispersants, said method comprising: including in said lubricant at least 0.05 percent by weight of a polyalkylene oxide.
  • the technology provides a method for reducing accumulation of high-aqueous content sludge in a sump-lubricated diesel engine lubricated with a lubricating oil formulation that contains at least one nitrogen-containing dispersant and optioanlly at least one dispersant viscosity modifier or polymeric material, wherein ⁇ the weight percent nitrogen derived from one or more nitrogen-containing ashless dispersants and nitrogen- containing dispersant viscosity modifiers ⁇ plus ⁇ 0.1 times the weight percent of any aromatic carbon provided by the following aromatic containing materials: polymeric materials, dispersants, and dispersant viscosity modifiers ⁇ is at least 0.07 (or alternatively at least 0.08), said method comprising: including in said lubricant at least about 0.05 percent by weight of a polyalkylene oxide.
  • the disclosed technology also provides a lubricant composition suitable for reducing accumulation of high-aqueous content sludge in a sump- lubricated diesel engine, comprising: an oil of lubricating viscosity; one or more nitrogen-containing ashless dispersants in an amount to provide at least 0.07 or 0.08 weight percent nitrogen to the lubricant composition; and at least 0.05 percent by weight of a polyalkylene oxide.
  • the formulation contains one or more nitro- gen-containing ashless dispersants or dispersant viscosity modifiers such that the formulation contains at least one nitrogen-containing dispersant and optionally at least one dispersant viscosity modifier or polymeric material, wherein ⁇ the weight percent nitrogen derived from one or more nitrogen-containing ashless dispersants and nitrogen-containing dispersant viscosity modifiers ⁇ plus ⁇ 0.1 times the weight percent of any aromatic carbon provided by the following aromatic containing materials: polymeric materials, dispersants, and dispersant viscosity modifiers ⁇ is at least 0.07.
  • a rocker cover for example, may have an ambient operating temperature of only about 25 0 C under certain conditions, and thus this is a location where collection of this sludge may be a problem.
  • One component of the sludge is the lubricating oil or at least a por- tion or components or elements of the overall lubricating oil composition.
  • Lubricants for internal combustion engines typically include a number of components that have been selected to perform various important functions.
  • One such component, and normally the majority component is an oil of lubricating viscosity.
  • the base oil used in the inventive lubricating oil composition may be selected from any of the base oils in Groups I-V as specified in the American Petroleum Institute (API) Base Oil Interchangeability Guidelines.
  • the five base oil groups are as follows: Base Oil Category Sulfur (%) Saturates(%) Vise. Index
  • Group I >0.03 and/or ⁇ 90 80 to 120
  • Group IV All polyalphaolefins (PAOs) Group V All others not included in Groups I, II, III or IV Groups I, II and III are mineral oil base stocks. "Gas-to-liquid" base stocks are also generally considered Group III.
  • the oil of lubricating viscosity can include natural or synthetic lubricating oils and mixtures thereof. Mixture of mineral oil and synthetic oils, particularly polyalphaolefin oils and polyester oils, are often used in lubricants.
  • Natural oils include animal oils and vegetable oils (e.g.
  • mineral lubricating oils such as liquid petroleum oils and solvent-treated or acid treated mineral lubricating oils of the paraffinic, naphthenic or mixed paraffinic-naphthenic types.
  • Hy- drotreated or hydrocracked oils are included within the scope of useful oils of lubricating viscosity.
  • Oils of lubricating viscosity derived from coal or shale are also useful.
  • Synthetic lubricating oils include hydrocarbon oils and halosubstituted hydrocarbon oils such as polymerized and interpolymerized olefins and mixtures thereof, alkylbenzenes, polyphenyl, (e.g., biphenyls, terphenyls, and alkylated polyphenyls), alkylated diphenyl ethers and alkylated diphenyl sulfides and their derivatives, analogs and homologues thereof.
  • hydrocarbon oils and halosubstituted hydrocarbon oils such as polymerized and interpolymerized olefins and mixtures thereof, alkylbenzenes, polyphenyl, (e.g., biphenyls, terphenyls, and alkylated polyphenyls), alkylated diphenyl ethers and alkylated diphenyl
  • Another suitable class of synthetic lubricating oils that can be used comprises the esters of dicarboxylic acids and those made from C5 to C 12 monocarboxylic acids and polyols or polyol ethers.
  • Other synthetic lubricating oils include liquid esters of phosphorus- containing acids, polymeric tetrahydrofurans, silicon-based oils such as the poly- alkyl-, polyaryl-, polyalkoxy-, or polyaryloxy-siloxane oils, and silicate oils.
  • Hydrotreated naphthenic oils are also known and can be used. Synthetic oils may be used, such as those produced by Fischer-Tropsch reactions and typically may be hydroisomerised Fischer-Tropsch hydrocarbons or waxes.
  • oils may be prepared by a Fischer-Tropsch gas-to-liquid synthetic procedure as well as other gas-to-liquid oils.
  • Unrefined, refined and rerefined oils either natural or synthetic (as well as mixtures of two or more of any of these) of the type disclosed herein- above can used in the compositions of the present invention.
  • Unrefined oils are those obtained directly from a natural or synthetic source without further purifi- cation treatment.
  • Refined oils are similar to the unrefined oils except they have been further treated in one or more purification steps to improve one or more properties.
  • Rerefined oils are obtained by processes similar to those used to obtain refined oils applied to refined oils which have been already used in service. Such rerefined oils often are additionally processed by techniques directed to removal of spent additives and oil breakdown products.
  • the amount of the oil will typically be greater than 50 percent by weight of the lubricant composition when the composition is a fully formulated lubricant. It may be equal to the balance of the total lubricant after the dispers- ant, polyalkylene oxide, and any other components are accounted for. Thus, it may be, in certain embodiments 70 to 96 percent or 80 to 95 percent or 85 to 90 percent .
  • the lubricant composition may be in the form of a concentrate, suitable for subsequent dilution with additional oil and optionally addition of further components to prepare the fully formulated lubricant. In such cases the amount of the oil will be proportionally less, e.g., 20 to 80 percent.
  • Such dispersants are typically referred to as "ashless” even if they have been post-treated with various agents, such as a borating agent to provide a borated dispersant.
  • Such dispersants are ashless in the sense that they do not contain metal or contribute metal content to a lubricant, even though the presence of boron may make a small contribution to sulfated ash as measured by ASTM D 874.
  • Such materials would typically be encompassed within the ashless dispersants of the present technology.
  • Ashless dispersants are characterized by a polar group attached to a relatively high molecular weight hydrocarbon chain. Typical ashless dispers- ants include N-substituted long chain alkenyl succinimides (succinimide dis- persants), h ically
  • one of the X groups can be hydrogen.
  • Saligenin detergents are disclosed in greater detail in U.S. Patent 6,310,009, with special reference to their methods of synthesis (Column 8 and Example 1) and amounts of the various species of X and Y (Column 6).
  • R 3 is hydrogen or a hydrocarbyl group
  • R 2 is hydroxyl or a hydrocarbyl group and j is 0, 1, or 2
  • R 6 is hydrogen, a hydrocarbyl group, or a hetero-substituted hydrocarbyl group
  • R 4 is hydroxyl and R 5 and R 7 are independently either hydrogen, a hydrocarbyl group, or hetero-substituted hydrocarbyl group, or else R 5 and R 7 are both hydroxyl and R 4 is hydrogen, a hydrocarbyl group, or a hetero-substituted hydrocarbyl group.
  • the overbased detergent can also be an overbased salicylate, that is, a salt of an alkylsalicylic acid.
  • the salicylic acids may be hydrocarbyl- substituted salicylic acids wherein each substituent contains an average of at least 8 carbon atoms per substituent and 1 to 3 substituents per molecule.
  • Over- based salicylate detergents and their methods of preparation are disclosed in U.S. Patents 4,719,023 and 3,372,116.
  • the resulting acid may be reacted with a basic metal compound to form the salt.
  • the metal M having a valence n, generally is aluminum, lead, tin, manganese, cobalt, nickel, zinc, or copper, and in many cases, zinc, to form zinc dialkyldithiophosphates.
  • the lubricant may also contain a viscosity modifier, in addition to the dispersant viscosity modifier that has been discussed above.
  • Viscosity modifiers also known as viscosity index improvers, generally are polymeric materials characterized as being hydrocarbon-based polymers generally having number average molecular weights between 25,000 and 500,000, e.g., between 50,000 and 200,000.
  • 4,285,822 discloses lubricating oil compositions containing a molybdenum and sulfur containing composition prepared by (1) combining a polar solvent, an acidic molybdenum compound and an oil-soluble basic nitrogen compound to form a molybdenum-containing complex and (2) contacting the complex with carbon disulfide to form the molybdenum and sulfur containing composition.
  • Typical amounts of antioxidants will, of course, depend on the specific antioxidant and its individual effectiveness, but illustrative total amounts can be 0.01 to 5 percent by weight or 0.15 to 4.5 or 0.2 to 4 percent.
  • Yet other components may be present, including, corrosion inhibitors, extreme pressure and anti-wear agents. These materials include chlorinated aliphatic hydrocarbons; boron-containing compounds including borate esters; and molybdenum compounds.
  • hydroxycarboxylic acids which may variously impart as one or more of friction modification, anti-wear, anti-corrosion, demulsif ⁇ cation, and antioxidant activity.
  • suitable hydroxycarboxylic acids from which a derivative may be prepared include citric acid, tartaric acid, malic acid (or hydroxy- succinic acid), mandelic acid, lactic acid, glycolic acid, hydroxy-propionic acid, hydroxyglutaric acid, and mixtures thereof.
  • the deriva- tive may be prepared from tartaric acid, citric acid, hydroxy-succinic acid, dihydroxy mono-acids, mono-hydroxy diacids, or mixtures thereof.
  • the derivative includes a compound derived more particularly from tartaric acid.
  • the derivative of hydroxycarboxylic acid may be an imide, di-ester, di-amide, or ester-amide derivative of tartaric acid, citric acid, or mixtures thereof.
  • the derivative of hydroxycarboxylic acid may be an imide, di-ester, di-amide, or ester-amide derivative of tartaric acid.
  • the derivatives may also be ester-imides or imide- amides (appli- cable for tri-acids and higher, such as citric acid) or di-imides (applicable for tetra-acids and higher).
  • hydrocarbyl substituent or “hydrocarbyl group” is used in its ordinary sense, which is well-known to those skilled in the art. Specifically, it refers to a group having a carbon atom directly attached to the remainder of the molecule and having predominantly hydrocarbon character.
  • hydrocarbyl groups include: hydrocarbon substituents, that is, aliphatic (e.g., alkyl or alkenyl), ali- cyclic (e.g., cycloalkyl, cycloalkenyl) substituents, and aromatic-, aliphatic-, and alicyclic-substituted aromatic substituents, as well as cyclic substituents wherein the ring is completed through another portion of the molecule (e.g., two substituents together form a ring); substituted hydrocarbon substituents, that is, substituents containing non- hydrocarbon groups which, in the context of this invention, do not alter the predominantly hydrocarbon nature of the substituent (e.g., halo (especially chloro and fluoro), hydroxy, alkoxy, mercapto, alkylmercapto, nitro, nitroso, and sulfoxy); hetero substituents, that is, substituents which, while having a predominantly hydrocarbon character, in the context of this
  • Heteroatoms include sulfur, oxygen, and nitrogen.
  • no more than two, preferably no more than one, non-hydrocarbon substituent will be present for every ten carbon atoms in the hydrocarbyl group; typically, there will be no non-hydrocarbon substituents in the hydrocarbyl group.
  • the reduction of accumulation of high-aqueous content sludge is modeled by the reduction of its viscosity, water content, and problems derived therefrom. This may be accomplished by a bench test which involves combin- ing 40 g deionized water and 1O g test lubricant oil in a 400 mL beaker. The water is added to the oil, which is stirred with a magnetic stir bar (setting at 3.5 units out of 10), over the course of about 4 minutes using a peristaltic pump. After the addition is complete, stirring is discontinued, the blend is allowed to sit for 10 minutes, and the blend is then poured into a 110 mL (4 oz) glass jar.

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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

Selon l'invention la formation de boue à forte teneur en eau peut être réduite dans un moteur diesel à carter d’huile lubrifié avec une formulation d’huile de lubrification qui contient au moins 0,07 ou 0,08 % en poids d’azote dérivé d’un ou plusieurs dispersants sans cendres contenant de l’azote, en incluant un oxyde de polyalkylène dans le lubrifiant.
EP09740819A 2008-10-22 2009-10-20 Réduction de la boue à forte teneur en eau dans des moteurs diesel Withdrawn EP2361297A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10747508P 2008-10-22 2008-10-22
PCT/US2009/061261 WO2010048137A1 (fr) 2008-10-22 2009-10-20 Réduction de la boue à forte teneur en eau dans des moteurs diesel

Publications (1)

Publication Number Publication Date
EP2361297A1 true EP2361297A1 (fr) 2011-08-31

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EP09740819A Withdrawn EP2361297A1 (fr) 2008-10-22 2009-10-20 Réduction de la boue à forte teneur en eau dans des moteurs diesel

Country Status (5)

Country Link
US (1) US20110224115A1 (fr)
EP (1) EP2361297A1 (fr)
BR (1) BRPI0919676A2 (fr)
CA (1) CA2741261A1 (fr)
WO (1) WO2010048137A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2799921A1 (fr) * 2010-05-20 2011-11-24 The Lubrizol Corporation Lubrifiants a faible teneur en cendres presentant des performances d'etancheite et de corrosion ameliorees
CN103415602B (zh) 2011-01-12 2016-08-17 路博润公司 含有聚醚的发动机润滑剂
US8927471B1 (en) * 2013-07-18 2015-01-06 Afton Chemical Corporation Friction modifiers for engine oils
US9879198B2 (en) * 2015-11-25 2018-01-30 Santolubes Llc Low shear strength lubricating fluids
CN110168063A (zh) * 2017-01-17 2019-08-23 路博润公司 含有聚醚化合物的发动机润滑剂
CN113831945B (zh) * 2020-06-24 2022-11-22 中国石油化工股份有限公司 一种改善涡轮增压器结焦问题的柴油发动机油及制备工艺

Citations (1)

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GB2441631A (en) * 2006-09-07 2008-03-12 Afton Chemical Corp Lubricating oil compositions for inhibiting coolant-induced oil filter plugging

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DE1794133B2 (de) * 1968-09-13 1975-09-25 The Lubrizol Corp., Cleveland, Ohio (V.St.A.). Schmierole
US5198135A (en) * 1990-09-21 1993-03-30 The Lubrizol Corporation Antiemulsion/antifoam agent for use in oils
US6209917B1 (en) * 1998-09-08 2001-04-03 Stephen R. Welch Unibody binder and the process of making the binder
US6642189B2 (en) * 1999-12-22 2003-11-04 Nippon Mitsubishi Oil Corporation Engine oil compositions
US6779516B1 (en) * 2003-05-30 2004-08-24 Detroit Diesel Corporation Closed crankcase ventilation system with flow meter for monitoring engine operation
CA2549517C (fr) * 2005-06-01 2014-01-21 Infineum International Limited Composition d'huile lubrifiante comprenant un polymere non hydrogene

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Publication number Priority date Publication date Assignee Title
GB2441631A (en) * 2006-09-07 2008-03-12 Afton Chemical Corp Lubricating oil compositions for inhibiting coolant-induced oil filter plugging

Also Published As

Publication number Publication date
BRPI0919676A2 (pt) 2018-05-29
WO2010048137A1 (fr) 2010-04-29
CA2741261A1 (fr) 2010-04-29
US20110224115A1 (en) 2011-09-15

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