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WO2010086365A1 - Composition lubrifiante - Google Patents

Composition lubrifiante Download PDF

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Publication number
WO2010086365A1
WO2010086365A1 PCT/EP2010/050990 EP2010050990W WO2010086365A1 WO 2010086365 A1 WO2010086365 A1 WO 2010086365A1 EP 2010050990 W EP2010050990 W EP 2010050990W WO 2010086365 A1 WO2010086365 A1 WO 2010086365A1
Authority
WO
WIPO (PCT)
Prior art keywords
lubricating composition
tbn
koh
present
astm
Prior art date
Application number
PCT/EP2010/050990
Other languages
English (en)
Inventor
Claudio Cocco
Jose Luis Garcia Ojeda
Original Assignee
Shell Internationale Research Maatschappij B.V.
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 Shell Internationale Research Maatschappij B.V. filed Critical Shell Internationale Research Maatschappij B.V.
Priority to US13/146,205 priority Critical patent/US20110301068A1/en
Priority to RU2011135812/04A priority patent/RU2556689C2/ru
Priority to CN201080005690.XA priority patent/CN102300969B/zh
Priority to BRPI1007023A priority patent/BRPI1007023A2/pt
Priority to EP10702470A priority patent/EP2382290A1/fr
Priority to JP2011546840A priority patent/JP5684147B2/ja
Priority to AU2010209748A priority patent/AU2010209748A1/en
Publication of WO2010086365A1 publication Critical patent/WO2010086365A1/fr

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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
    • 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
    • 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
    • C10M139/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing atoms of elements not provided for in groups C10M127/00 - C10M137/00
    • 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
    • C10M159/00—Lubricating compositions characterised by the additive being of unknown or incompletely defined constitution
    • C10M159/12—Reaction products
    • 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
    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/17—Fisher Tropsch reaction products
    • C10M2205/173—Fisher Tropsch reaction products 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
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/14—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to carbon atoms of six-membered aromatic rings
    • C10M2207/144—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to carbon atoms of six-membered aromatic rings containing hydroxy 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
    • C10M2207/26—Overbased carboxylic acid salts
    • C10M2207/262—Overbased carboxylic acid salts derived from hydroxy substituted aromatic acids, e.g. salicylates
    • 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
    • C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
    • C10M2227/06—Organic compounds derived from inorganic acids or metal salts
    • C10M2227/061—Esters derived from boron
    • 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
    • C10N2030/10—Inhibition of oxidation, e.g. anti-oxidants
    • 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
    • C10N2030/40—Low content or no content compositions
    • C10N2030/45—Ash-less or low ash content
    • 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
    • C10N2030/52—Base number [TBN]
    • 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
    • C10N2040/12—Gas-turbines

Definitions

  • the present invention relates to a lubricating composition, in particular for use as a gas engine oil.
  • gas engines fuelled with non-natural gas present additional challenges for the lubricant to neutralise acidic combustion products in the lubricant or other acidic compounds already present in the fuel.
  • Mobil Pegasus 605 (version 01-2006) contains a sulphated ash content (according to ASTM D 874) of 0.52 and a TBN value (according to ASTM D 2896) of 4.9, and Mobil Pegasus 1005 contains a sulphated ash content of 0.5 and a TBN value of 5. It is an object of the present invention to improve the oxidation and nitration stability and base number retention of lubricating compositions, especially for use in gas engine oils.
  • a lubricating composition comprising a base oil and one or more additives, wherein the composition has: - a sulphated ash content (according to ASTM D 874) of at least 0.1 wt.% and at most 0.60 wt.%, preferably at most 0.55 wt.%, more preferably at most 0.50 wt.%; and a total base number (TBN) value (according to ASTM D 2896) of at least 8.0 mg KOH/g and at most 15.0 mg KOH/g.
  • TBN total base number
  • WO 2007/117776 discloses a lubricating composition containing less than 1.0 wt.% sulphated ash and a total base number of at least about 8.5 mg KOH/g, (and although paragraph [0032] of WO 2007/117776 indicates that the total ash content in certain embodiments may be 0.1-0.7 wt.%) in the Examples of WO 2007/117776 no actual suggestion or teaching has been made of formulations containing at most 0.60 wt.% sulphated ash and at the same time a TBN value of at least 8.0 mg KOH/g. Also, as can be learned from paragraph [0003] thereof, WO 2007/117776 suggests to add certain selected nitrogen-containing dispersants to boost the TBN value.
  • the lubricating compositions according to the present invention may exhibit improved oxidation stability, base number retention and oxidation nitration stability. This results in longer ODIs (oil drain intervals), which is highly desirable in view of less downtime and lower maintenance costs of the gas engine. Also, the lubricating compositions according to the present invention may exhibit desirable seal compatibility properties.
  • the sulphated ash content of the lubricating composition according to the present invention is above 0.1 wt.%. However, preferably the sulphated ash content is above 0.3 wt.%, more preferably above 0.4 wt.%, even more preferably above 0.45 wt.%.
  • the base number value is at least 8.5 mg KOH/g, preferably at least 9.0 mg KOH/g.
  • the base number is below 15.0 mg KOH/g, preferably below
  • the composition has a calcium content (according to ASTM D 4951) of at most 0.15 wt.%. Typically the calcium content is above
  • the lubricating composition comprises a detergent being the reaction product of an acidic organic compound, a boron compound, and a basic organic compound.
  • a detergent being the reaction product of an acidic organic compound, a boron compound, and a basic organic compound.
  • the above detergent has a molecular weight of below 650.
  • the above detergent is present in an amount of from 0.5 to 4.0 wt.%, preferably from 1.0 to 3.0 wt.% based on the weight of the total lubricating composition. It is even more preferred that the detergent has the general formula (I) below
  • a is l or Z; and wherein K" and K" are independently selected hydrocarbyl groups, provided that, where a is 2, the groups R 1 and R 2 are independently selected.
  • the above hydrocarbyl group which is preferably an alkyl group, may contain from 1 to 50 carbon atoms, preferably from. 12 to 30 carbon atoms, most preferably 14 to 18 carbon atoms. Further it is preferred according to the present invention that the lubricating composition has a P- content (according to DIN 51363 T2) of at most 0.04 wt.%. Typically the P ⁇ content is above 0.01 wt.%.
  • the lubricating composition according to the present invention has a boron content of above 100 ppm (according to ASTM D 4951) , preferably above 200 ppm; furthermore, the boron content is typically below 600 ppm, more preferably below 500 ppm.
  • At least 50% of the TBN of the composition is provided by non-metal containing additives (preferably detergents) , preferably at least 55%, more preferably at least 60%, even more preferably at least 65%, most preferably at least 70%.
  • non-metal containing additives preferably detergents
  • the contribution of TBN by a non-metal containing additive is calculated from the TBN measured for the single additive concentrate, multiplied by the percentage added to the lubricant composition and divided by the the total TBN of the finished lubricant composition.
  • the at least one non-metal containing additive may also be referred to as an ashless additive, since it will typically not produce any sulfated ash when subjected to the conditions of ASTM D 874.
  • non-metal containing if it does not contribute metal content to the lubricant composition. It is recognized, of course, that a non-metal containing additive will normally eventually be mixed with other material in a lubricating composition and certain of the other materials may be metal containing. If this happens, some of the metal ions from the other material may become associated with the non-metal containing material. However, such in-situ association is not intended to negate the identity of the additive in question as a non- metal containing additive. Thus, the additive is, more strictly speaking, non-metal containing prior to mixing with other components. As indicated above, in a preferred embodiment, at least 50% of the TBN of the composition is provided by non-metal containing detergents.
  • base oil used in lubricating composition according to the present invention there are no particular limitations regarding the base oil used in lubricating composition according to the present invention, and various conventional mineral oils, synthetic oils as well as naturally derived esters such as vegetable oils may be conveniently used.
  • the base oil used in the present invention may conveniently comprise mixtures of one or more mineral oils and/or one or more synthetic oils; thus, according to the present invention, the term "base oil” may refer to a mixture containing more than one base oil.
  • Mineral oils include liquid petroleum oils and solvent-treated or acid-treated mineral lubricating oil of the paraffinic, naphthenic, or mixed paraffinic/naphthenic type which may ⁇ be further refined by hydrofinishing processes and/or dewaxing.
  • Suitable base oils for use in the lubricating oil composition of the present invention are Group I-III mineral base oils, Group IV poly-alpha olefins (PAOs) , Group I-III Fischer-Tropsch derived base oils and mixtures thereof.
  • Group I By “Group I”, “Group II”, “Group III” and “Group IV” base oils in the present invention are meant lubricating oil base oils according to the definitions of American Petroleum Institute (API) for category III and IV. These API categories are defined in API Publication 1509, 15th Edition, Appendix E, April 2002.
  • Fischer-Tropsch derived base oils are known in the art.
  • Fischer-Tropsch derived is meant that a base oil is, or is derived from, a synthesis product of a Fischer-Tropsch process.
  • a Fischer-Tropsch derived base oil may also be referred to as a GTL (Gas-To-Liquids) base oil.
  • Suitable Fischer-Tropsch derived base oils that may be conveniently used as the base oil in the lubricating composition of the present invention are those as for example disclosed in EP 0 776 959, EP 0 G68 342, WO 97/21788, WO 00/15736, WO 00/14188, WO 00/14187, WO 00/14183, WO 00/14179, WO 00/08115,
  • Synthetic oils include hydrocarbon oils such as olefin oligomers (including polyalphaolefin base oils; PAOs) , dibasic acid esters, polyol esters, polyalkylene glycols (PAGs) , alkyl naphthalenes and dewaxed waxy isomerates.
  • hydrocarbon oils such as olefin oligomers (including polyalphaolefin base oils; PAOs) , dibasic acid esters, polyol esters, polyalkylene glycols (PAGs) , alkyl naphthalenes and dewaxed waxy isomerates.
  • PAOs polyalphaolefin base oils
  • PAGs polyalkylene glycols
  • alkyl naphthalenes alkyl naphthalenes
  • dewaxed waxy isomerates dewaxed waxy isomerates.
  • Poly-alpha olefin base oils PAOs
  • Preferred poly- alpha olefin base oils that may be used in the lubricating compositions of the present invention may be derived from linear C 2 to 0 32 , preferably C$ to Ci «, alpha olefins.
  • Particularly preferred feedstocks for said polyTM alpha olefins are 1-octene, 1-decene, 1-dodecene and 1- tetradecene .
  • the base oil as used in the lubricating composition according to the present invention comprises a base oil selected from the group consisting of a poly- alpha olefin base oil and a Fischer-Tropsch derived base oil or a combination thereof.
  • the total amount of base oil incorporated in the lubricating composition of the present invention is preferably present in an amount in the range of from 60 to 99 wt. %, more preferably in an amount in the range of from 65 to 98 wt.% and most preferably in an amount in the range of from 70 to 95 wt.%, with respect to the total weight of the lubricating composition.
  • the kinematic viscosity at 100 0 C (according to ASTM D 445) of the composition is between 9.3 and 26.1 cSt, preferably above 9.3 and below 16.3.
  • the lubricating composition according to the present invention may further comprise one or more additives such as anti-oxidants, anti-wear additives, dispersants, detergents, overbased detergents, extreme pressure additives, friction modifiers, viscosity modifiers, pour point depressants, metal passivators, corrosion inhibitors, demulsifiers, anti-foam agents, seal compatibility agents and additive diluent base oils, etc.
  • additives such as anti-oxidants, anti-wear additives, dispersants, detergents, overbased detergents, extreme pressure additives, friction modifiers, viscosity modifiers, pour point depressants, metal passivators, corrosion inhibitors, demulsifiers, anti-foam agents, seal compatibility agents and additive diluent base oils, etc.
  • additives such as anti-oxidants, anti-wear additives, dispersants, detergents, overbased detergents, extreme pressure additives, friction modifiers, viscosity modifiers, pour point depressants, metal passivators, corrosion inhibitors, dem
  • antioxidants examples include phenyl-naphthylamines and diphenylamines .
  • Anti-wear additives that may be conveniently used include zinc-containing compounds such as zinc dithiophosphate compounds selected from zinc dialkyl-, diaryl- and/or alkylarylTM dithiophosphates, molybdenum- containing compounds, boron-containing compounds and ashless anti-wear additives such as substituted or unsubstituted thiophosphoric acids, and salts thereof.
  • molybdenum-containing compounds may conveniently include molybdenum dithiocarbamates, trinuclear molybdenum compounds, for example as described in WO 98/26030, sulphides of molybdenum and molybdenum dithiophosphate .
  • Boron-containing compounds that may be conveniently used include borate esters, borated fatty amines, borated epoxides, alkali metal (or mixed alkali metal or alkaline earth metal) borates and borated overbased metal salts.
  • the dispersant used is preferably an ashless dispersa ⁇ t. Suitable examples of ashless dispersants are polybutylene succinimide polyamines and Mannic base type dispersants .
  • the detergent used is preferably an overbased detergent or detergent mixture containing e.g. salicylate, sulphonate and/or phenate-type detergents.
  • viscosity modifiers which may conveniently be used in the lubricating composition of the present invention include the styrene-butadiene stellate copolymers, styrene-isoprene stellate copolymers and the polymethacrylate copolymer and ethylene-propylene copolymers. Dispersant-viscosity modifiers may be used in the lubricating composition of the present invention. _ Q —
  • the composition contains at least 0.1 wt. % of a pour point depressant.
  • a pour point depressant alkylated naphthalene and phenolic polymers, polymethacrylates, maleate/furnarate copolymer esters may be conveniently used as effective pour point depressants.
  • compounds such as alkenyl succinic acid or ester moieties thereof, benzotriazole-based compounds and thiodiazole-based compounds may be conveniently used in the lubricating composition of the present invention as corrosion inhibitors.
  • Compounds such as polysiloxanes, dimethyl polycyclohexane and polyacrylates may be conveniently used in the lubricating composition of the present invention as defoaming agents.
  • seal fix or seal compatibility agents include, for example, commercially available aromatic esters.
  • the lubricating compositions of the present invention may be conveniently prepared by admixing the one or more additives with the base oil(s) .
  • the above-mentioned additives are typically present in an amount in the range of from 0.01 to 35.0 wt.%, based on the total weight of the lubricating composition, preferably in an amount in the range of from 0.05 to 25.0 wt.%, more preferably from 1.0 to 20.0 wt.%, based on the total weight of the lubricating composition.
  • the present invention provides the use of a lubricating composition according to the present invention, in particular in a gas engine, in order to improve one or more of: oxidation stability (in particular according to the IP-48/97 (2004) test); and - base number retention (in particular according to the IP-48/97 (2004) test).
  • the present invention may result in an improvement of engine cleanliness.
  • the lubricating compositions according to the present invention are useful for lubricating apparatus generally, but in particular for use as engine oils for internal combustion engines. These engine oils include passenger car engines, diesel engines, marine diesel engines, gas engines, two- and four-cycle engines, etc., and in particular gas engines.
  • Table 1 indicates the composition and properties of the fully formulated gas engine oil formulations that were tested; the amounts of the components are given in wt.%, based on the total weight of the fully formulated formulations .
  • All tested gas engine oil formulations were formulated as SAE 40 formulations meeting the so-called SAE J300 Specifications (as revised in May 2004; SAE stands for Society of Automotive Engineers) .
  • All the tested gas engine oil formulations contained a combination of a base oil, an additive package and a detergent, which additive package was the same in all tested compositions.
  • Examples 2 and 3 additionally contained a conventional PIB-based thickener in order to meet the viscosity requirements of SAE 40.
  • the additive package contained a combination of additives including anti-oxidants, zinc-based anti-wear additives, an ashless dispersant, a pour point depressant, a corrosion inhibitor and a metal passivator.
  • Base oil 1 was a commercially available Group II base oil having a kinematic viscosity at 100 0 C (ASTM D445 ⁇ of approx. 12.4 cSt (IrUn 2 S "1 ). Base oil 1 is commercially available from e.g. Chevron Products Company (San Ramon, CA, United States) (under the trade designation "Chevron 600 R").
  • Base oil 2 was a Fischer-Tropsch derived base oil (“GTL 8") having a kinematic viscosity at 100 0 C (ASTM D445) of approx. 8 cSt (ItIm 2 S “1 ) .
  • This GTL base oil may be conveniently manufactured by the process described in e.g. WO 02/070631, the teaching of which is hereby incorporated by reference.
  • Base oil 3 was a commercially available Group III base oil having a kinematic viscosity at 100 0 C (ASTM D445) of approx. 8 cSt (HIm 2 S “1 ) .
  • Base oil 3 is commercially available from e.g. SK Energy (Ulsan, South Korea) (under the trade designation "Yubase 8") .
  • Detergent 1 was an ashless detergent having general formula (I) as described above.
  • Detergent 2 was a conventional overbased salicylate detergent having a TBN-value of about 230.
  • Detergent 3 was a conventional overbased detergent having a TBN-value of about 150.
  • compositions of Examples 1-3 and Comparative Examples 1-3 were obtained by mixing the base oils with the additive package and detergent (s) using conventional lubricant blending procedures .
  • Table 1 The compositions of Examples 1-3 and Comparative Examples 1-3 were obtained by mixing the base oils with the additive package and detergent (s) using conventional lubricant blending procedures .
  • TBN measured for the single additive concentrate multiplied by the percentage added to the lubricant composition and divided by the total TBN of the finished lubricant composition.
  • the present invention surprisingly allows formulating suitable gas engine oil compositions having a low sulphated ash content and a high TBN-value (which TBN-value is much higher than that of commercially available gas engine oils; as reflected in Comparative Examples 1 and 2) .
  • Table 2 shows that the values for viscosity (both at 40°C and 100 0 C), TAN and base number retention for the compositions according to the present invention were significantly improved when compared with Comparative Example 1 ⁇ containing the same amount of detergent - see Table 1) and Comparative Example 2. This is a clear indication of desirable oxidation stability and base number retention properties for the compositions according to the present invention.
  • the lubricating compositions according to the present invention showed desirable engine cleanliness properties.

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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 une composition lubrifiante contenant une huile de base et un ou plusieurs additifs, ladite composition présentant une teneur en cendres sulfatées (selon la norme ASTM D 874) supérieure ou égale à 0,1 % en poids et inférieure ou égale à 0,60 % en poids, de préférence inférieure ou égale à 0,55 % en poids et, de préférence encore, inférieure ou égale à 0,50 % en poids; ainsi qu'un indice de base (TBN; selon la norme ASTM D 2896) supérieur ou égal à 8,0 mg KOH/g et inférieur ou égal à 15,0 mg KOH/g.
PCT/EP2010/050990 2009-01-28 2010-01-28 Composition lubrifiante WO2010086365A1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US13/146,205 US20110301068A1 (en) 2009-01-28 2010-01-28 Lubricating composition
RU2011135812/04A RU2556689C2 (ru) 2009-01-28 2010-01-28 Смазочная композиция
CN201080005690.XA CN102300969B (zh) 2009-01-28 2010-01-28 润滑组合物
BRPI1007023A BRPI1007023A2 (pt) 2009-01-28 2010-01-28 composição lubrificante, e, uso de uma composição lubrificante
EP10702470A EP2382290A1 (fr) 2009-01-28 2010-01-28 Composition lubrifiante
JP2011546840A JP5684147B2 (ja) 2009-01-28 2010-01-28 潤滑組成物
AU2010209748A AU2010209748A1 (en) 2009-01-28 2010-01-28 Lubricating composition

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP09151574.2 2009-01-28
EP09151574 2009-01-28

Publications (1)

Publication Number Publication Date
WO2010086365A1 true WO2010086365A1 (fr) 2010-08-05

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PCT/EP2010/050990 WO2010086365A1 (fr) 2009-01-28 2010-01-28 Composition lubrifiante

Country Status (8)

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US (1) US20110301068A1 (fr)
EP (1) EP2382290A1 (fr)
JP (1) JP5684147B2 (fr)
CN (1) CN102300969B (fr)
AU (1) AU2010209748A1 (fr)
BR (1) BRPI1007023A2 (fr)
RU (1) RU2556689C2 (fr)
WO (1) WO2010086365A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
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CN102206537A (zh) * 2011-04-18 2011-10-05 殷立新 节能环保汽车发动机润滑油

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2719785T3 (es) * 2013-03-21 2019-07-16 Infineum Int Ltd Lubricación de motor marino
EP3068852A1 (fr) * 2013-11-14 2016-09-21 Dow Global Technologies Llc Dispersants d'huile pour moteur à base d'époxyamine alcoxylate
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JP6655284B2 (ja) * 2014-12-11 2020-02-26 シェルルブリカンツジャパン株式会社 潤滑油組成物
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CN102300969A (zh) 2011-12-28
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JP5684147B2 (ja) 2015-03-11
JP2012516367A (ja) 2012-07-19
CN102300969B (zh) 2015-02-25
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US20110301068A1 (en) 2011-12-08
EP2382290A1 (fr) 2011-11-02

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