EP2497818A1 - A marine cylinder oil composite additive - Google Patents
A marine cylinder oil composite additive Download PDFInfo
- Publication number
- EP2497818A1 EP2497818A1 EP12158753A EP12158753A EP2497818A1 EP 2497818 A1 EP2497818 A1 EP 2497818A1 EP 12158753 A EP12158753 A EP 12158753A EP 12158753 A EP12158753 A EP 12158753A EP 2497818 A1 EP2497818 A1 EP 2497818A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- base number
- oil
- composite additive
- superhigh
- detergent
- 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.)
- Granted
Links
- 239000000654 additive Substances 0.000 title claims abstract description 52
- 239000002131 composite material Substances 0.000 title claims abstract description 51
- 230000000996 additive effect Effects 0.000 title claims abstract description 47
- 239000010727 cylinder oil Substances 0.000 title claims abstract description 40
- 239000003599 detergent Substances 0.000 claims abstract description 36
- 239000002199 base oil Substances 0.000 claims abstract description 28
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims abstract description 21
- 229940031826 phenolate Drugs 0.000 claims abstract description 17
- 125000005609 naphthenate group Chemical group 0.000 claims abstract description 16
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 12
- 239000002270 dispersing agent Substances 0.000 claims abstract description 12
- ISWSIDIOOBJBQZ-UHFFFAOYSA-M phenolate Chemical compound [O-]C1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-M 0.000 claims abstract description 11
- KZNICNPSHKQLFF-UHFFFAOYSA-N succinimide Chemical compound O=C1CCC(=O)N1 KZNICNPSHKQLFF-UHFFFAOYSA-N 0.000 claims description 36
- 125000000217 alkyl group Chemical group 0.000 claims description 28
- 239000011575 calcium Substances 0.000 claims description 20
- 229910052791 calcium Inorganic materials 0.000 claims description 20
- 229920002367 Polyisobutene Polymers 0.000 claims description 18
- 229960002317 succinimide Drugs 0.000 claims description 18
- -1 alkyl calcium naphthenate Chemical compound 0.000 claims description 16
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical group [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 14
- 239000011701 zinc Substances 0.000 claims description 14
- 229910052725 zinc Inorganic materials 0.000 claims description 14
- ZMRQTIAUOLVKOX-UHFFFAOYSA-L calcium;diphenoxide Chemical compound [Ca+2].[O-]C1=CC=CC=C1.[O-]C1=CC=CC=C1 ZMRQTIAUOLVKOX-UHFFFAOYSA-L 0.000 claims description 12
- 125000004432 carbon atom Chemical group C* 0.000 claims description 10
- JXLHNMVSKXFWAO-UHFFFAOYSA-N azane;7-fluoro-2,1,3-benzoxadiazole-4-sulfonic acid Chemical compound N.OS(=O)(=O)C1=CC=C(F)C2=NON=C12 JXLHNMVSKXFWAO-UHFFFAOYSA-N 0.000 claims description 8
- 150000004996 alkyl benzenes Chemical class 0.000 claims description 2
- 239000010729 system oil Substances 0.000 abstract description 14
- 239000010687 lubricating oil Substances 0.000 abstract description 8
- 230000002411 adverse Effects 0.000 abstract description 2
- 230000001050 lubricating effect Effects 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 32
- 239000003921 oil Substances 0.000 description 17
- 238000000034 method Methods 0.000 description 13
- 238000002156 mixing Methods 0.000 description 13
- 239000000126 substance Substances 0.000 description 7
- 239000002699 waste material Substances 0.000 description 7
- PLIKAWJENQZMHA-UHFFFAOYSA-N 4-aminophenol Chemical compound NC1=CC=C(O)C=C1 PLIKAWJENQZMHA-UHFFFAOYSA-N 0.000 description 6
- NKFIBMOQAPEKNZ-UHFFFAOYSA-N 5-amino-1h-indole-2-carboxylic acid Chemical compound NC1=CC=C2NC(C(O)=O)=CC2=C1 NKFIBMOQAPEKNZ-UHFFFAOYSA-N 0.000 description 6
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 6
- RYYWUUFWQRZTIU-UHFFFAOYSA-K thiophosphate Chemical compound [O-]P([O-])([O-])=S RYYWUUFWQRZTIU-UHFFFAOYSA-K 0.000 description 6
- 238000004939 coking Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000009472 formulation Methods 0.000 description 4
- 238000001556 precipitation Methods 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000000113 differential scanning calorimetry Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 230000026676 system process Effects 0.000 description 1
Images
Classifications
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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
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—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]
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/25—Internal-combustion engines
- 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 Figure 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. Therefore, the composite additives designed for the BOB system have several features in terms of the technical requirement:
- 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, wherein 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).
- 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. Components Contents (%) Linear alkyl (C22) calcium sulfonate with superhigh base number 15 Sulfurized calcium alkyl (C25) phenolate with superhigh base number 45 Alkyl (C20) calcium naphthenate with superhigh base number 20 Zinc primary alkyl (C12) thiophosphate 2 Mono-polyisobutylene succinimide 8 Group I base oil of 400SN 10
- 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. Components Contents (%) Linear alkyl (C30) calcium sulfonate with superhigh base number 15 Sulfurized calcium alkyl (C20) phenolate with superhigh base number 35 Alkyl (C30) calcium naphthenate with superhigh base number 27 Zinc secondary alkyl (C16) thiophosphate 4 Bis-polyisobutylene succinimide 4 Group I base oil of 500SN 15
- 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. Components Contents (%) Linear alkyl (C26) calcium sulfonate with superhigh base number 25 Sulfurized calcium alkyl (C22) phenolate with superhigh base number 35 Alkyl (C26) calcium naphthenate with superhigh base number 20 Zinc primary alkyl (C18) thiophosphate 2 Multi-polyisobutylene succinimide 6 Group I base oil of 500SN 12
- 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. Components Contents (%) Linear alkyl (C26) calcium sulfonate with superhigh base number 20 Sulfurized calcium alkyl (C22) phenolate with superhigh base number 42 Alkyl (C26) calcium naphthenate with superhigh base number 20 Zinc secondary alkyl (C12) thiophosphate 0 Bis-polyisobutylene succinimide 8 Group I base oil of 400SN 10
- 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. Components Contents (%) Linear alkyl (C20) calcium sulfonate with superhigh base number 16 Sulfurized calcium alkyl (C24) phenolate with superhigh base number 40 Alkyl (C26) calcium naphthenate with superhigh base number 20 Zinc secondary alkyl (C16) thiophosphate 4 Multi-polyisobutylene succinimide 0 Group I base oil of 650SN 20
- 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. Components Contents (%) Linear alkyl (C20) calcium sulfonate with superhigh base number 19 Sulfurized calcium alkyl (C24) phenolate with superhigh base number 40 Alkyl (C26) calcium naphthenate with superhigh base number 25 Zinc secondary alkyl (C16) thiophosphate 2 Multi-polyisobutylene succinimide 4 Group I base oil of 650SN 10
- 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.
- Example 1 Comparison of the physical and chemical properties of the tri-detergent cylinder oil composite additives designed for the BOB system Item Sample Technical requirement Method
- Example 2 Example 3
- Example 4 Example 5
- 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 Figure 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 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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Abstract
Description
- 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
Figure 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. Therefore, the composite additives designed for the BOB system have several features in terms of the technical requirement:
- 1. Sufficient antiwear and antioxidization properties should be preserved when relatively low dosage is used;
- 2. Good compatibility to system oils under different brands;
- 3. The composite additive should satisfy the requirement of being pumped within the BOB system and fit with the blending system.
- According to the novelty search within Chinese and worldwide patents, no related reference documents are found in the field of both shipborne BOB online blending system and the composite additive designed the BOB system.
- It can be known from the corresponding Chinese and worldwide patents that the sulfonate detergent with superhigh base number has excellent detergency and dispersion performances and the sulfurized calcium phenolate has excellent antiwear and antioxidization performances, and thus 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 C22-C30 linear alkyl benzene calcium sulphonate, wherein the base number thereof is 395-430 mgKOH/g.
- Said phenolate detergent with superhigh base number is C18-C24 alkyl sulfurized calcium phenolate, wherein the base number thereof is 290-310 mgKOH/g.
- Said naphthenate detergent with superhigh base number is C20-C30 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,
- 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. Moreover, 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).
-
-
Figure 1 shows a schematic diagram for the operating principle of BOB online blending system. -
Figure 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 mm2/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.
- In this example, the sulfonate with superhigh base number is long-chain linear C22-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 C25-alkyl sulfurized calcium phenolate and the base number thereof is 290 mgKOH/g, and the naphthenate detergent with superhigh base number is C20-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.
Components Contents (%) Linear alkyl (C22) calcium sulfonate with superhigh base number 15 Sulfurized calcium alkyl (C25) phenolate with superhigh base number 45 Alkyl (C20) calcium naphthenate with superhigh base number 20 Zinc primary alkyl (C12) thiophosphate 2 Mono-polyisobutylene succinimide 8 Group I base oil of 400SN 10 - 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.
- In this example, the sulfonate with superhigh base number is long-chain linear C30-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 C18-alkyl sulfurized calcium phenolate and the base number thereof is 310 mgKOH/g, and the naphthenate detergent with superhigh base number is C30-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.
Components Contents (%) Linear alkyl (C30) calcium sulfonate with superhigh base number 15 Sulfurized calcium alkyl (C20) phenolate with superhigh base number 35 Alkyl (C30) calcium naphthenate with superhigh base number 27 Zinc secondary alkyl (C16) thiophosphate 4 Bis-polyisobutylene succinimide 4 Group I base oil of 500SN 15 - 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.
- In this example, the sulfonate with superhigh base number is long-chain linear C26-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 C22-alkyl sulfurized calcium phenolate and the base number thereof is 300 mgKOH/g, and the naphthenate detergent with superhigh base number is C26-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.
Components Contents (%) Linear alkyl (C26) calcium sulfonate with superhigh base number 25 Sulfurized calcium alkyl (C22) phenolate with superhigh base number 35 Alkyl (C26) calcium naphthenate with superhigh base number 20 Zinc primary alkyl (C18) thiophosphate 2 Multi-polyisobutylene succinimide 6 Group I base oil of 500SN 12 - 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.
- In this example, the sulfonate with superhigh base number is long-chain linear C22-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 C24-alkyl sulfurized calcium phenolate and the base number thereof is 290 mgKOH/g, and the naphthenate detergent with superhigh base number is C20-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.
Components Contents (%) Linear alkyl (C26) calcium sulfonate with superhigh base number 20 Sulfurized calcium alkyl (C22) phenolate with superhigh base number 42 Alkyl (C26) calcium naphthenate with superhigh base number 20 Zinc secondary alkyl (C12) thiophosphate 0 Bis-polyisobutylene succinimide 8 Group I base oil of 400SN 10 - 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.
- In this example, the sulfonate with superhigh base number is long-chain linear C20-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 C24-alkyl sulfurized calcium phenolate and the base number thereof is 300 mgKOH/g, and the naphthenate detergent with superhigh base number is C26-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.
Components Contents (%) Linear alkyl (C20) calcium sulfonate with superhigh base number 16 Sulfurized calcium alkyl (C24) phenolate with superhigh base number 40 Alkyl (C26) calcium naphthenate with superhigh base number 20 Zinc secondary alkyl (C16) thiophosphate 4 Multi-polyisobutylene succinimide 0 Group I base oil of 650SN 20 - 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.
- In this example, the sulfonate with superhigh base number is long-chain linear C20-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 C24-alkyl sulfurized calcium phenolate and the base number thereof is 300 mgKOH/g, and the naphthenate detergent with superhigh base number is C26-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.
Components Contents (%) Linear alkyl (C20) calcium sulfonate with superhigh base number 19 Sulfurized calcium alkyl (C24) phenolate with superhigh base number 40 Alkyl (C26) calcium naphthenate with superhigh base number 25 Zinc secondary alkyl (C16) thiophosphate 2 Multi-polyisobutylene succinimide 4 Group I base oil of 650SN 10 - 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.
Table 1 Comparison of the physical and chemical properties of the tri-detergent cylinder oil composite additives designed for the BOB system Item Sample Technical requirement Method Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Kinematic viscosity (100°C), mm2/s 93.68 89.64 90.52 88.78 91.38 92.80 <95 according to OEM GB/T 265 Base number, mgKOH/g 308 298 302 295 298 306 ≥285 according to OEM SH/T 0251 Density (20°C), kg/m3 1095.2 1082.5 1090.6 1080.8 1092.6 1098.7 Report SH/T 0604 Flash point (closed), °C 188 192 186 191 188 195 ≥150 GB/T 261 Moisture, % 0.10 0.06 0.03 0.06 0.05 0.08 <0.2 GB/T 260 Mechanical impurity, % 0.030 0.020 0.018 0.028 0.015 0.020 <0.1 GB/T 511 Sulfated ash, % 38.62 33.54 35.86 34.62 37.54 36.91 Report GB/T 2433 - 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. Herein, 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.
Table 2 Physical and chemical properties of the cylinder oil with the base number of 70 mgKOH/g and the simulated performance thereof Item Unit Mobilgard M300 Energol OE-HT30 KUNLUN DCC3008 Method Dosage of the composite additive, % 22 22 21.2 Viscosity, 100°C mm2/s 14.12 14.72 13.81 GB/T 265 Viscosity coefficient - 105 102 104 ISO2909 Base number mgKOH /g 69.2 70.2 69.8 SH/T 0251 Flash point °C 252 250 258 GB/T 261 Sulfated ash, % w% 7.82 7.72 7.68 GB/T 2433 Oxidative induction time by PDSC min 14.72 13.98 13.20 SH/T 0719, the test condition is: 200°C, 3.0MPa, O2 Pb value by four-ball test N 1254 1186 1186 GB/T 3142 Long wear extent by four-ball test mm 0.34 0.33 0.34 SH/T 0189 Coking test mg 21 20 18 SH/T 0300 Gel test ml 0.3 0.5 0.25 1 % of water and 99% of oil are blended in the test tube, stirred by an agitator blade (2000 rpm) for 60 sec and stored at 70°C for 96 h. The precipitation amount at tube bottom is observed. Table 3 Physical and chemical properties of the cylinder oil with the base number of 60 mgKOH/g and the simulated performance thereof Item Unit Mobilgard M300 Energol OE-HT30 KUNLUN DCC3008 Method Dosage of the composite additive, % 18.64 18.64 17.8 Viscosity, 100°C mm2/ s 13.86 14.35 13.47 GB/T 265 Viscosity coefficient - 102 100 108 ISO2909 Base number mgK OH/g 59.2 59.8 60.2 SH/T 0251 Flash point °C 250 258 252 GB/T 261 Sulfated ash, % w% 7.36 7.40 7.35 GB/T 2433 PDSC min 14.14 13.08 12.89 SH/T 0719, the test condition is: 200°C, 3.0MPa, O2 Pb value by four-ball test N 1186 1117 1186 GB/T 3142 Long wear extent by four-ball test mm 0.34 0.34 0.33 SH/T 0189 Coking test mg 19 20 16 SH/T 0300 Gel test ml 0.5 0.2 0.25 1 % of water and 99% of oil are blended in the test tube, stirred by an agitator blade (2000 rpm) for 60 sec and stored at 70°C for 96 h. The precipitation amount at tube bottom is observed. Table 4 Physical and chemical properties of the cylinder oil with the base number of 50 mgKOH/g and the simulated performance thereof Item Unit Mobilgard M300 Energol OE-HT30 KUNLUN DCC3008 Method Dosage of the composite additive, % 15.25 15.25 14.38 Viscosity, 100°C mm2/ s 13.46 13.98 13.06 GB/T 265 Viscosity coefficient - 105 100 102 ISO2909 Base number mgK OH/g 49.8 49.2 49.7 SH/T 0251 Flash point °C 246 258 250 GB/T 261 Sulfated ash, % w% 6.97 6.86 6.94 GB/T 2433 PDSC min 13.86 13.04 11.95 SH/T 0719, the test condition is: 200°C, 3.0MPa, O2 Pb value by four-ball test N 1049 1117 1117 GB/T 3142 Long wear extent by four-ball test mm 0.35 0.34 0.34 SH/T 0189 Coking test mg 26 18 20 SH/T 0300 Gel test ml 0.45 0.32 0.50 1 % of water and 99% of oil are blended in the test tube, stirred by an agitator blade (2000 rpm) for 60 sec and stored at 70°C for 96 h. The precipitation amount at tube bottom is observed. Table 5 Physical and chemical properties of the cylinder oil with the base number of 40 mgKOH/g and the simulated performance thereof Item Unit Mobilgard M300 Energol OE-HT30 KUNLUN DCC3008 Method Dosage of the composite additive, % 11.86 11.86 10.96 Viscosity, 100°C mm2/ s 12.92 13.62 12.67 GB/T 265 Viscosity coefficient - 100 108 102 ISO2909 Base number mgK OH/g 39.6 40.1 39.8 SH/T 0251 Flash point °C 246 250 258 GB/T 261 Sulfated ash, % w% 6.50 6.36 6.58 GB/T 2433 PDSC min 12.82 13.41 11.98 SH/T 0719, the test condition is: 200°C, 3.0MPa, O2 Pb value by four-ball test N 1117 1117 1186 GB/T 3142 Long wear extent by four-ball test mm 0.35 0.34 0.35 SH/T 0189 Coking test mg 21 24 18 SH/T 0300 Gel test ml 0.4 0.25 0.5 1 % of water and 99% of oil are blended in the test tube, stirred by an agitator blade (2000 rpm) for 60 sec and stored at 70°C for 96 h. The precipitation amount at tube bottom is observed. - 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
Figure 2 . - Throughout the test of 4000 hours, 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.
- It can be clearly seen from
Figure 2 that the residual base number in the waste oil was not notably decreased, and the Fe content resulted from the wear was not notably increased, either, that is, the both important index fluctuated within normal ranges. - 1. 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;
- 2. The residue base number of the waste oil from the four different stages tended to decrease due to the decrease of the base number of fresh oils. Furthermore, even if the cylinder oil with a base number of 40 mgKOH/g was used, the residue base number in the waste oil was still above 15 mgKOH/g. It is shown that the composite additive has strong ability to "store" the base number, and thus effectively prevent the wear of engine parts to occur.
- In conclusion, 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.
Claims (2)
- A marine cylinder oil composite additive, 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 C22-C30 linear alkyl benzene calcium sulphonate, wherein the base number thereof is 395-430 mgKOH/g;
said phenolate detergent with superhigh base number is C18-C24 alkyl sulfurized calcium phenolate, wherein the base number thereof is 290-310 mgKOH/g;
said naphthenate detergent with superhigh base number is C20-C30 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, - The marine cylinder oil composite additive according to claim 1, characterized in that, the kinematic viscosity of said base oil is 8.0-11.0 cst at 100°C.
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2012
- 2012-03-09 EP EP12158753.9A patent/EP2497818B1/en active Active
- 2012-03-09 US US13/416,079 patent/US20120231985A1/en not_active Abandoned
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2014
- 2014-11-21 US US14/550,626 patent/US20150144430A1/en not_active Abandoned
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107406784A (en) * | 2015-01-26 | 2017-11-28 | 雪佛龙奥伦耐技术有限责任公司 | Marine diesel lubricant oil composite |
EP3250663A4 (en) * | 2015-01-26 | 2018-06-27 | Chevron Oronite Technology B.V. | Marine diesel engine lubricating oil composition |
WO2017067561A1 (en) * | 2015-10-20 | 2017-04-27 | A.P. Møller - Mærsk A/S | Method and apparatus for preparing an oil to be supplied to the cylinders of a two-stroke crosshead engine |
DK201500647A1 (en) * | 2015-10-20 | 2017-05-08 | A P Møller - Mærsk As | Method and apparatus for preparing an oil to be supplied to the cylinders of a two-stroke crosshead engine |
DK179212B1 (en) * | 2015-10-20 | 2018-02-05 | A P Møller Mærsk As | Method and apparatus for preparing an oil to be supplied to the cylinders of a two-stroke crosshead engine |
WO2017080563A1 (en) * | 2015-11-11 | 2017-05-18 | A.P. Møller - Mærsk A/S | Blender and method for preparing an oil to be supplied to the cylinders of a two-stroke crosshead engine |
EP4075108A1 (en) * | 2015-11-11 | 2022-10-19 | A.P. Møller - Mærsk A/S | Blender and method for preparing an oil to be supplied to the cylinders of a two-stroke crosshead engine |
CN112646646A (en) * | 2019-10-10 | 2021-04-13 | 中国石油化工股份有限公司 | Railway locomotive oil composition, preparation method and application thereof |
Also Published As
Publication number | Publication date |
---|---|
CN102676273A (en) | 2012-09-19 |
US20150144430A1 (en) | 2015-05-28 |
US20120231985A1 (en) | 2012-09-13 |
EP2497818B1 (en) | 2016-10-19 |
WO2012119273A1 (en) | 2012-09-13 |
CN102676273B (en) | 2013-10-16 |
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