US20120231985A1 - Marine cylinder oil composite additive - Google Patents

Marine cylinder oil composite additive Download PDF

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Publication number
US20120231985A1
US20120231985A1 US13/416,079 US201213416079A US2012231985A1 US 20120231985 A1 US20120231985 A1 US 20120231985A1 US 201213416079 A US201213416079 A US 201213416079A US 2012231985 A1 US2012231985 A1 US 2012231985A1
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Prior art keywords
base number
superhigh
oil
alkyl
composite additive
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US13/416,079
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English (en)
Inventor
Yuekui Zhai
Jie Zhang
Gongde Liu
Yuli Ma
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Petrochina Co Ltd
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Petrochina Co Ltd
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Assigned to PETROCHINA COMPANY LIMITED reassignment PETROCHINA COMPANY LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: Liu, Gongde, Ma, Yuli, ZHAI, Yuekui, ZHANG, JIE
Publication of US20120231985A1 publication Critical patent/US20120231985A1/en
Priority to US14/550,626 priority Critical patent/US20150144430A1/en
Abandoned 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
    • C10M163/00—Lubricating compositions characterised by the additive being a mixture of a compound of unknown or incompletely defined constitution and a non-macromolecular compound, each of these compounds being essential
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
    • F01M9/02—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00 having means for introducing additives to lubricant
    • 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
    • C10M2203/02—Well-defined aliphatic 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
    • C10M2203/02—Well-defined aliphatic compounds
    • C10M2203/0206—Well-defined aliphatic compounds 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
    • C10M2207/028—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
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/086—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
    • C10M2219/04—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—Overbasedsulfonic 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
    • C10M2223/045—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
    • C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
    • 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
    • C10N2030/26—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
    • C10N2030/52—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
    • C10N2040/25—Internal-combustion engines
    • C10N2040/252—Diesel engines
    • 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
    • C10N2070/00—Specific manufacturing methods for lubricant compositions
    • C10N2070/02—Concentrating of additives

Definitions

  • the present invention relates to a marine cylinder oil composite additive formulation, and more particularly to a composite additive designed for cylinder oils which is applied in shipborne BOB systems.
  • the current BOB (Blender-on-Board) online blending system equipped on ocean vessels is an automatic control system that blends the marine system oil with a composite additive which is designed for the marine lubricating oils in the BOB system so as to provide a cylinder oil that have an optional target base number, and such cylinder oil can be rapidly transferred to the engine in order to meet the different requirements for the base number of the cylinder oil in cases of using fuels with different sulfur contents.
  • a schematic diagram for the operating principle of BOB online blending system is shown in FIG. 1 .
  • the operating procedure of the BOB system is as follows: the system oil is pumped from the main oil tank to each lubrication point of the engine so as to provide lubrication and thereafter recycled back to the main oil tank, wherein part of the system oil is side-drawn and then blended with a composite additive in the BOB blending device to form a cylinder oil with required base numbers, which is burned off after fulfilling lubrication, and the residue thereof flows into a waste oil tank.
  • the composite additives designed for the BOB system are remarkably different from the traditional marine lubricating oils.
  • the later are lubricating oil products with fixed base numbers, which are produced in blending plants and may be directly used by adding into the oil tank of vessels, whereas the former are additives produced by blending plants and blended with the system oil before adding into a tank of vessels so as to provide marine cylinder oils with different base numbers in order to meet the requirement of the use in engines.
  • the composite additives designed for the BOB system have several features in terms of the technical requirement:
  • the composite additive should satisfy the requirement of being pumped within the BOB system and fit with the blending system.
  • the sulfonate detergent with superhigh base number has excellent detergency and dispersion performances and the sulfurized calcium phenolate has excellent antiwear and antioxidization performances
  • the cylinder oil formulation is commonly composed by the sulfonate detergent and the sulfurized calcium phenolate; the naphthenate has good oil film diffusibility, and the burned residue thereof is relatively soft and readily cleaned by the lubricating oil.
  • Such combustion behavior of the naphthenate is particularly important for the “disposable” cylinder oil, and its relatively fast diffusion rate on the cylinder wall could just compensate for the lacking of oil film strength at low injection rate.
  • the application of the cylinder oil composite additive formulation comprising three detergents of the sulfonate detergent, sulfurized calcium phenolate detergent and naphthenate detergent can not only enhance the performance of the cylinder oil but also utilize the abundant naphthenate resource of PetroChina so as to build significant superiority in the technology of marine oil self-owned by PetroChina.
  • the purpose of the present invention is to provide a marine cylinder oil composite additive that can not only satisfy the requirement of the marine BOB online blending system but also have wide adaptability.
  • the marine lubricating oil composite additive is characterized in that, based on the total weight of the composite additive, it comprises: 15-25% sulfonate detergent with superhigh base number, 35-45% phenolate detergent with superhigh base number, 20-30% naphthenate detergent with superhigh base number, 0-8% dispersing agent, 0-4% antiwear agent, and 10-20% Group I base oil with high viscosity index which is selected from the group consisting of 400SN, 500SN and 650SN.
  • Said sulfonate detergent with superhigh base number is C 22 -C 30 linear alkyl benzene calcium sulphonate, wherein the base number thereof is 395-430 mgKOH/g.
  • Said phenolate detergent with superhigh base number is C 18 -C 24 alkyl sulfurized calcium phenolate, wherein the base number thereof is 290-310 mgKOH/g.
  • Said naphthenate detergent with superhigh base number is C 20 -C 30 long chain alkyl calcium naphthenate, wherein the base number thereof is 390-420 mgKOH/g.
  • Said dispersing agent is selected from the group consisting of mono-polyisobutylene succinimide, bis-polyisobutylene succinimide and multi-polyisobutylene succinimide.
  • Said antiwear agent is zinc long-chain alkyl thiophosphate with the structure corresponding to the following formula,
  • R 1 , R 2 , R 3 and R 4 are long-chain primary alkyl groups each comprising 12-18 carbon atoms, or R 1 , R 2 , R 3 and R 4 are long-chain secondary alkyl groups each comprising 12-16 carbon atoms.
  • Said base oil is Group I base oil with high viscosity index which is selected from the group consisting of 400SN, 500SN and 650SN, the kinematic viscosity of which is 8.0-11.0 cst at 100° C.
  • the appropriate base oils are commercially available from PetroChina Company.
  • the marine cylinder oil composite additive provided by the present invention employs three composed detergents, wherein the sulfonate detergent with superhigh base number has excellent detergency and dispersion performances but relatively poor antiwear and antioxidization performances; the sulfurized calcium phenolate has excellent antiwear and antioxidization performances but relatively poor detergency and dispersion performances; the naphthenate has good oil film diffusibility but relatively poor detergency and antiwear performances.
  • the above three detergents are composed so as to allow full play to their advantages and compensate for their shortages.
  • the technical features of the present invention are as follows: the requirement of the BOB system process for the viscosity and base number can be satisfied by the composite additive, which can be online blended and widely applied.
  • the cylinder oils with different base numbers can be formulated based on system oils under a number of domestic and foreign brands.
  • the composite additive according to the present invention has good adaptability and excellent performances in terms of antiwear, antioxidization and high temperature detergency, which meet the requirement of marine engines.
  • the composite additive according to the present invention can remain good stability in solution as well as good compatibility, and thus the lubricating performance of the cylinder oil would not be adversely affected.
  • Such composite additive has been tested by sailing over 4000 hours, and has been technically certified by MAN B&W, the engine OEM (original equipment manufacturer).
  • FIG. 1 shows a schematic diagram for the operating principle of BOB online blending system.
  • FIG. 2 shows the monitoring data for samples of the fresh/waste cylinder oils using the composite additive of the present application during the sailing.
  • the composite additive used in BOB system may be prepared from the components mentioned below (their contents in weight percentage are also given in detail) by means of normal blending process.
  • the blending process is as follows: the base oil is firstly added into a blending barrel/tank, and then the temperature is raised to 65 ⁇ 5° C., wherein the base oil should have a kinematic viscosity of 7.0-12.0 mm 2 /s at 100° C.; the antiwear agent, the dispersing agent and the detergents are subsequently introduced into said blending barrel/tank, and stirring is carried out at 65 ⁇ 5° C. for 2 hours until completely homogeneous.
  • the above process is implemented in every example hereafter.
  • the sulfonate with superhigh base number is long-chain linear C 22 -alkyl benzene calcium sulphonate with superhigh base number and its base number is 430 mgKOH/g
  • the sulfurized alkyl phenolate with superhigh base number is long-chain C 25 -alkyl sulfurized calcium phenolate and the base number thereof is 290 mgKOH/g
  • the naphthenate detergent with superhigh base number is C 20 -alkyl calcium naphthenate with superhigh base number and the base number thereof is 390 mgKOH/g.
  • the antiwear agent is zinc long-chain primary alkyl thiophosphate wherein the long-chain primary alkyl group comprises 12 carbon atoms.
  • the dispersing agent is mono-polyisobutylene succinimide.
  • the base oil is group I base oil 400SN available from PetroChina Daqing Petrochemical Company.
  • the composite additive used in BOB system may be prepared from the components mentioned below (their contents in weight percentage are also given in detail) by means of normal process.
  • the sulfonate with superhigh base number is long-chain linear C 30 -alkyl benzene calcium sulphonate with superhigh base number and its base number is 395 mgKOH/g
  • the sulfurized alkyl phenolate with superhigh base number is long-chain C 18 -alkyl sulfurized calcium phenolate and the base number thereof is 310 mgKOH/g
  • the naphthenate detergent with superhigh base number is C 30 -alkyl calcium naphthenate with superhigh base number and the base number thereof is 420 mgKOH/g.
  • the antiwear agent is zinc long-chain secondary alkyl thiophosphate wherein the long-chain secondary alkyl group comprises 16 carbon atoms.
  • the dispersing agent is bis-polyisobutylene succinimide.
  • the base oil is group I base oil 500SN available from PetroChina Daqing Petrochemical Company.
  • the composite additive used in BOB system may be prepared from the components mentioned below (their contents in weight percentage are also given in detail) by means of normal process.
  • the sulfonate with superhigh base number is long-chain linear C 26 -alkyl benzene calcium sulphonate with superhigh base number and its base number is 410 mgKOH/g
  • the sulfurized alkyl phenolate with superhigh base number is long-chain C 22 -alkyl sulfurized calcium phenolate and the base number thereof is 300 mgKOH/g
  • the naphthenate detergent with superhigh base number is C 26 -alkyl calcium naphthenate with superhigh base number and the base number thereof is 405 mgKOH/g.
  • the antiwear agent is zinc long-chain primary alkyl thiophosphate wherein the long-chain primary alkyl group comprises 18 carbon atoms.
  • the dispersing agent is multi-polyisobutylene succinimide.
  • the base oil is group I base oil 500SN available from PetroChina Daqing Petrochemical Company.
  • the composite additive used in BOB system may be prepared from the components mentioned below (their contents in weight percentage are also given in detail) by means of normal process.
  • the sulfonate with superhigh base number is long-chain linear C 22 -alkyl benzene calcium sulphonate with superhigh base number and its base number is 430 mgKOH/g
  • the sulfurized alkyl phenolate with superhigh base number is long-chain C 24 -alkyl sulfurized calcium phenolate and the base number thereof is 290 mgKOH/g
  • the naphthenate detergent with superhigh base number is C 20 -alkyl calcium naphthenate with superhigh base number and the base number thereof is 390 mgKOH/g.
  • the antiwear agent is zinc long-chain secondary alkyl thiophosphate wherein the long-chain secondary alkyl group comprises 12 carbon atoms.
  • the dispersing agent is bis-polyisobutylene succinimide.
  • the base oil is group I base oil 400SN available from PetroChina Daqing Petrochemical Company.
  • the composite additive used in BOB system may be prepared from the components mentioned below (their contents in weight percentage are also given in detail) by means of normal process.
  • the sulfonate with superhigh base number is long-chain linear C 20 -alkyl benzene calcium sulphonate with superhigh base number and its base number is 410 mgKOH/g
  • the sulfurized alkyl phenolate with superhigh base number is long-chain C 24 -alkyl sulfurized calcium phenolate and the base number thereof is 300 mgKOH/g
  • the naphthenate detergent with superhigh base number is C 26 -alkyl calcium naphthenate with superhigh base number and the base number thereof is 405 mgKOH/g.
  • the antiwear agent is zinc long-chain secondary alkyl thiophosphate wherein the long-chain secondary alkyl group comprises 16 carbon atoms.
  • the dispersing agent is multi-polyisobutylene succinimide.
  • the base oil is group I base oil 650SN available from PetroChina Daqing Petrochemical Company.
  • the composite additive used in BOB system may be prepared from the components mentioned below (their contents in weight percentage are also given in detail) by means of normal process.
  • the sulfonate with superhigh base number is long-chain linear C 20 -alkyl benzene calcium sulphonate with superhigh base number and its base number is 410 mgKOH/g
  • the sulfurized alkyl phenolate with superhigh base number is long-chain C 24 -alkyl sulfurized calcium phenolate and the base number thereof is 300 mgKOH/g
  • the naphthenate detergent with superhigh base number is C 26 -alkyl calcium naphthenate with superhigh base number and the base number thereof is 405 mgKOH/g.
  • the antiwear agent is zinc long-chain secondary alkyl thiophosphate wherein the long-chain secondary alkyl group comprises 16 carbon atoms.
  • the dispersing agent is multi-polyisobutylene succinimide.
  • the base oil is group I base oil 650SN available from PetroChina Daqing Petrochemical Company.
  • the present invention provides a tri-detergent composite additive designed for the BOB system, and the physical and chemical properties of such composite additive are able to satisfy the requirement of Maersk Fluid Co. about the composite additive designed for the BOB system.
  • the physical and chemical properties of the composite additives obtained by the above examples are listed in Table 1.
  • the composite additive designed for the BOB system using triple detergents provided by the present invention is well compatible with system oil products under typical domestic and foreign brands, for example Exxon-Mobile Company, BP Company and PetroChina.
  • the performances of the formulated cylinder oils with different base numbers are individually studied by simulated experiments, and the results demonstrate that the cylinder oils with different base numbers maintain good combination property as for lubricating oil, for example the antioxidization, antiwear, detergency and water resisting performances and etc.
  • the antioxidization performance of the cylinder oil is evaluated according to the oxidative induction time which is measured by differential scanning calorimetry (PDSC).
  • the antiwear performance is evaluated by the Pb value and the long wear extent which are obtained by four-ball test.
  • the coking tests are carried out in order to test the detergency performance of the cylinder oil, while the gel tests are carried out so as to test the storage stability.
  • the tri-detergent composite additive designed for the BOB system formulated according to the formulation of Example 6 is blended with Exxon-Mobile system oil Mobilgard M300, BP system oil Energol OE-HT30 and Kunlun system oil DCC3008, respectively, so as to provide cylinder oils with the base numbers of 70 mgKOH/g, 60 mgKOH/g, 50 mgKOH/g and 40 mgKOH/g as shown in Tables 2, 3, 4 and 5.
  • the composite additive designed for the BOB system using triple detergents provided by the present invention can be blended with system oils so as to provide cylinder oils that can satisfy the requirement of the engine.
  • Such composite additive has been tested by sailing over 4000 hours wherein BP Energol OE-HT30 is used as the system oil by the vessel, and has been technically certified by MAN B&W. Samples of the fresh/waste cylinder oils using such composite additive during the sailing were monitored, and the data are illustrated in FIG. 2 .
  • the base number of the cylinder oil formulated from the composite additive decreased from 70 mgKOH/g at the beginning, through 60 mgKOH/g and 50 mgKOH/g, to 40 mgKOH/g at the end.
  • the entire sailing test could be divided into four stages according to the base number of the cylinder oil, and each stage lasted about 1000 hours.
  • the Fe content in the waste oil was never abnormally high, and the Fe content of all the samples was always less than 150 ppm, which satisfied the requirement of the engine OEM about the performance of cylinder oils;
  • the cylinder oil maintained steady combination performance in case that the variation of the dosage of the composite additive reached the extent close to 50%, especially in terms of the antiwear performance under extreme pressure and the ability to preserve the base number.
  • the test results sufficiently satisfied the requirement of the engine about the lubricating oil performance and were technically certified by the engine OEM.

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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)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubricants (AREA)
US13/416,079 2011-03-10 2012-03-09 Marine cylinder oil composite additive Abandoned US20120231985A1 (en)

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CN201110058054XA CN102676273B (zh) 2011-03-10 2011-03-10 一种船用气缸油复合剂
CN201110058054.X 2011-03-10

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EP (1) EP2497818B1 (fr)
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Cited By (3)

* Cited by examiner, † Cited by third party
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CN108165353A (zh) * 2018-02-01 2018-06-15 山东莱恩国立生物科技有限公司 一种生物润滑油添加剂及其制备方法
CN112239697A (zh) * 2019-07-17 2021-01-19 中国石油化工股份有限公司 船用气缸油组合物及其用途
CN116064188A (zh) * 2021-11-04 2023-05-05 中国石油化工股份有限公司 润滑油组合物及其制备方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104232247A (zh) * 2013-06-07 2014-12-24 天津市百年润滑油工贸有限公司 一种复合纳米粒子润滑油及其制备方法
CN103555400B (zh) * 2013-10-24 2015-08-26 大连海事大学 一种矿油型蒸汽气缸油组合物,其制备方法及应用
CN104450091A (zh) * 2014-12-02 2015-03-25 中国石油天然气股份有限公司 一种船用气缸油组合物及其制备方法与应用
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CN102676273A (zh) 2012-09-19

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