CN114250098A - Lubricating oil and method for preparing lubricating oil - Google Patents
Lubricating oil and method for preparing lubricating oil Download PDFInfo
- Publication number
- CN114250098A CN114250098A CN202011013257.2A CN202011013257A CN114250098A CN 114250098 A CN114250098 A CN 114250098A CN 202011013257 A CN202011013257 A CN 202011013257A CN 114250098 A CN114250098 A CN 114250098A
- Authority
- CN
- China
- Prior art keywords
- lubricating oil
- oil
- ions
- engine
- complexing agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000010687 lubricating oil Substances 0.000 title claims abstract description 81
- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000008139 complexing agent Substances 0.000 claims abstract description 42
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 34
- 239000011733 molybdenum Substances 0.000 claims abstract description 34
- -1 molybdenum ions Chemical class 0.000 claims abstract description 34
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229910001424 calcium ion Inorganic materials 0.000 claims abstract description 27
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229910001425 magnesium ion Inorganic materials 0.000 claims abstract description 26
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 18
- 150000001875 compounds Chemical class 0.000 claims abstract description 7
- 239000003921 oil Substances 0.000 claims description 49
- 238000012360 testing method Methods 0.000 claims description 30
- 239000002199 base oil Substances 0.000 claims description 20
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 17
- 229910052791 calcium Inorganic materials 0.000 claims description 17
- 239000011575 calcium Substances 0.000 claims description 17
- 238000003756 stirring Methods 0.000 claims description 16
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 16
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 14
- 229910052749 magnesium Inorganic materials 0.000 claims description 14
- 239000011777 magnesium Substances 0.000 claims description 14
- 230000000994 depressogenic effect Effects 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 10
- 125000000217 alkyl group Chemical group 0.000 claims description 9
- 239000003963 antioxidant agent Substances 0.000 claims description 9
- 230000003078 antioxidant effect Effects 0.000 claims description 9
- OXRIHKFHLPFPSJ-UHFFFAOYSA-J molybdenum(4+) tetracarbamate Chemical compound C(N)([O-])=O.[Mo+4].C(N)([O-])=O.C(N)([O-])=O.C(N)([O-])=O OXRIHKFHLPFPSJ-UHFFFAOYSA-J 0.000 claims description 9
- ISWSIDIOOBJBQZ-UHFFFAOYSA-M phenolate Chemical compound [O-]C1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-M 0.000 claims description 9
- 229940031826 phenolate Drugs 0.000 claims description 9
- 238000003860 storage Methods 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 7
- 239000002270 dispersing agent Substances 0.000 claims description 7
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 239000008186 active pharmaceutical agent Substances 0.000 claims description 3
- 150000001412 amines Chemical class 0.000 claims description 3
- 229920001577 copolymer Polymers 0.000 claims description 3
- 239000010696 ester oil Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims description 3
- 150000002989 phenols Chemical class 0.000 claims description 3
- 229920013639 polyalphaolefin Polymers 0.000 claims description 3
- KZNICNPSHKQLFF-UHFFFAOYSA-N succinimide Chemical class O=C1CCC(=O)N1 KZNICNPSHKQLFF-UHFFFAOYSA-N 0.000 claims description 3
- RYYWUUFWQRZTIU-UHFFFAOYSA-K thiophosphate Chemical compound [O-]P([O-])([O-])=S RYYWUUFWQRZTIU-UHFFFAOYSA-K 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000314 lubricant Substances 0.000 claims 1
- 230000002401 inhibitory effect Effects 0.000 abstract description 9
- 238000004140 cleaning Methods 0.000 abstract description 5
- 238000005259 measurement Methods 0.000 abstract description 4
- 239000003599 detergent Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000013329 compounding Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000011049 filling Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- ZFXVRMSLJDYJCH-UHFFFAOYSA-N calcium magnesium Chemical compound [Mg].[Ca] ZFXVRMSLJDYJCH-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000011895 specific detection Methods 0.000 description 1
Images
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
- C10M169/047—Mixtures of base-materials and additives the additives being a mixture of compounds of unknown or incompletely defined constitution and macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/06—Metal compounds
- C10M2201/062—Oxides; Hydroxides; Carbonates or bicarbonates
-
- 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
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/06—Metal compounds
- C10M2201/065—Sulfides; Selenides; Tellurides
- C10M2201/066—Molybdenum sulfide
-
- 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
- C10M2203/102—Aliphatic fractions
- C10M2203/1025—Aliphatic fractions 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
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/0206—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers 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
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/022—Ethene
-
- 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
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/024—Propene
-
- 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
- C10M2207/027—Neutral 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/2805—Esters 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
- 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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/10—Amides of carbonic or haloformic acids
-
- 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
- C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
The invention provides lubricating oil and a method for preparing the lubricating oil, and relates to the field of automobiles. The lubricating oil comprises a complexing agent; the mass ratio of calcium ions, magnesium ions and molybdenum ions in the complexing agent is as follows: 1: 0.2-1: 0.1-1, so that the lubricating oil can inhibit low-speed pre-ignition of the engine. The lubricating oil provided by the invention is prepared by a brand-new proportioning method aiming at the complexing agent except the known lubricating oil components, and the mass ratio of calcium ions, magnesium ions and molybdenum ions in the complexing agent is 1: 0.2-1: 0.1-1. The lubricating oil formed by the brand-new compound agent well inhibits the low-speed pre-ignition of an engine through a large number of actual measurements, has excellent wear-resistant durability, still maintains excellent wear-resistant and cleaning performances while inhibiting the low-speed pre-ignition of the engine, and has extremely high practicability.
Description
Technical Field
The invention relates to the field of lubricating oil, in particular to lubricating oil and a method for preparing the lubricating oil.
Background
With the development of automobile internal combustion engine technology and the pursuit of fuel economy, the loading amount of small-sized turbo direct injection supercharged engines is rapidly increased. However, such engines are more prone to low speed pre-ignition problems.
The low-speed pre-ignition is the self-ignition phenomenon which occurs before the normal ignition of the spark plug when the engine speed is not high (the common 1000-2500 rpm interval) and the torque output is high. This problem can cause knock, and in the worst case, super knock and damage to the engine.
The damage of low-speed pre-ignition to engine hardware is very large, and the effort to find various solutions to deal with low-speed pre-ignition is one of the important jobs for each large engine manufacturer. After the engine is set, only the lubricating oil remains for variables that can be adjusted to suppress low speed pre-ignition. Through research, the conventional SN and the following lubricating oil grades can not inhibit the low-speed pre-ignition.
For lubricating oil with SN + specification, the low-speed pre-ignition can be inhibited to a certain extent, but the effect and the application range are not good, and especially for different design, production and performance requirements of large engine manufacturers, the existing lubricating oil can not inhibit the low-speed pre-ignition of the engine well.
Disclosure of Invention
The invention provides lubricating oil and a method for preparing the lubricating oil, which can well inhibit low-speed pre-ignition of an engine.
In order to solve the above technical problem, an embodiment of the present invention provides a lubricating oil, including a complexing agent;
the mass ratio of calcium ions, magnesium ions and molybdenum ions in the complexing agent is 1: 0.2-1: 0.1-1, so that the lubricating oil inhibits low-speed pre-ignition of the engine.
Optionally, providing calcium ions in the complexing agent is: at least one of calcium sulfonate and calcium alkyl phenolate;
the complexing agent provides magnesium ions and comprises the following components in percentage by weight: at least one of magnesium sulfonate and alkyl phenol magnesium.
Optionally, the complexing agent provides molybdenum ions: at least one of molybdenum carbamate, molybdenum disulfide and molybdenum trioxide.
Optionally, the complexing agent comprises: calcium sulfonate, calcium alkyl phenolate, magnesium sulfonate, magnesium alkyl phenolate and molybdenum carbamate, wherein the mass ratio of the calcium ions to the magnesium ions to the molybdenum ions is as follows:
1：0.2-1：0.2-1。
optionally, the complexing agent comprises: calcium sulfonate, magnesium alkylphenol and molybdenum carbamate, wherein the mass ratio of the calcium ions to the magnesium ions to the molybdenum ions is as follows:
1：0.2-0.6：0.1-0.5。
optionally, the complexing agent further comprises: an antioxidant, an antiwear agent and a dispersant;
the antioxidant comprises: one or two of phenols and amines;
the antiwear agent comprises: one or more of thiophosphate;
the dispersant comprises: one or more kinds of succinimides.
Optionally, the lubricating oil further comprises: base oil, viscosity index improver and pour point depressant;
the base oil comprises: one or more of API group III base oils, poly-alpha-olefins, ester oils;
the viscosity index improver comprises: ethylene propylene copolymers;
wherein the base oil characteristic indexes are as follows: the kinematic viscosity range of 100 ℃ is 2-10mm2/s。
Optionally, the dosages of the various components in the lubricating oil are:
the mass ratio of the compound preparation is as follows: 7% -15%;
the dosage of the base oil mass ratio is as follows: 70% -90%;
the mass ratio of the viscosity index improver is as follows: 5% -15%;
the mass ratio of the pour point depressant is as follows: 0.1 to 0.6 percent.
Embodiments of the present invention also provide a method of preparing a lubricating oil for use in preparing a lubricating oil according to any one of the above, the method comprising:
introducing the base oil into a blending kettle according to a proportion, and adding a pour point depressant;
heating the blending kettle to a preset temperature, and stirring for a preset time to obtain first mixed oil;
adding a viscosity index improver into the first mixed oil, and continuously stirring at the preset temperature for the preset time to obtain second mixed oil;
adding a complexing agent into the second mixed oil, and continuously stirring at the preset temperature for the preset time to obtain third mixed oil;
filtering the third mixed oil, and storing the filtered third mixed oil into a storage kettle;
and detecting the filtered third mixed oil, and if the detection result is qualified, obtaining the filtered third mixed oil as the lubricating oil.
Optionally, after the product oil filling, the method further comprises:
testing the lubricating oil through an engine under preset conditions to obtain a result that the lubricating oil inhibits low-speed pre-ignition of the engine;
the engine with the preset conditions is as follows: after running-in, the temperature of the outlet water of the engine is 88 +/-2 ℃, the temperature after intercooling is +/-2 ℃ of the specified temperature of the working point, the exhaust back pressure is stabilized within +/-2 kpa, the pressure drop before and after intercooling is less than or equal to 10kpa, and the engine is tested at different rotating speeds.
The lubricating oil provided by the invention is prepared by a brand-new proportioning method aiming at the complexing agent except the known lubricating oil components, and the mass ratio of calcium ions, magnesium ions and molybdenum ions in the complexing agent is 1: 0.2-1: 0.1-1. The lubricating oil formed by the brand-new compound agent well inhibits the low-speed pre-ignition of an engine through a large number of actual measurements, has excellent wear-resistant durability, still maintains excellent wear-resistant and cleaning performances while inhibiting the low-speed pre-ignition of the engine, and has extremely high practicability.
Drawings
FIG. 1 is a flow chart of a method of preparing a lubricating oil according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The inventor finds that the current lubricating oil partially uses a calcium-magnesium detergent compound system, a primary-secondary ZDDP anti-wear and anti-corrosion system and a phenolic amine antioxidant system; there are also some single detergent systems, primary and secondary ZDDP antiwear and anticorrosion systems, phenolic amine antioxidant systems.
Although the lubricating oil prepared by the above proportioning can inhibit the occurrence of low-speed pre-ignition to a certain extent, the effect is not obvious, especially for engines of different engine manufacturers, the effect of inhibiting low-speed pre-ignition cannot be achieved satisfactorily, and due to the complexity of the proportioning of the lubricating oil, the lubricating oil has large influence on abrasion resistance and detergency while inhibiting low-speed pre-ignition, cannot well balance the performances of the three, and also causes that the application range of the current lubricating oil is narrow and the universality is poor.
In view of the above problems, the present invention provides a lubricating oil and a preparation method thereof, and the technical scheme of the present invention is described in detail below.
The embodiment of the invention provides lubricating oil which comprises a complexing agent, wherein the complexing agent is brand-new and designed by the inventor, and the mass ratio of calcium ions, magnesium ions and molybdenum ions in the complexing agent is 1: 0.2-1: 0.1-1, the compounding agent with the proportion is added into the lubricating oil, and the effect of improving the lubricating oil for inhibiting the low-speed pre-ignition of the engine is obvious.
After a great deal of research, experiments and actual measurement, the inventor finds that the existence of calcium ions in the lubricating oil is a key factor for inducing or promoting the low-speed pre-ignition problem, and molybdenum ions have the function of inhibiting the low-speed pre-ignition. Based on the above findings, the inventors further conducted intensive studies on the mixture ratio of calcium ions and molybdenum ions, introduced magnesium ions in consideration of the balance among inhibition of low-speed pre-ignition, wear resistance and detergency of the lubricating oil, and finally synthesized the remaining components in the complexing agent, and repeatedly tested and actually measured the mixture ratio of calcium ions, magnesium ions and molybdenum ions, thereby providing the lubricating oil of the embodiment of the present invention.
In the embodiment of the invention, the inventor synthesizes the required components of the complexing agent, and based on the requirement of the complexing agent, the complexing agent comprises the following components: the theory of detergent and antiwear agent suggests that calcium ion and magnesium ion are provided by detergent and molybdenum ion is provided by antiwear agent, without adding calcium ion, magnesium ion and molybdenum ion separately.
One preferred choice of detergents and antiwear agents in the examples of the present invention is:
calcium ions are provided in the detergent by: at least one of calcium sulfonate and calcium alkyl phenolate; magnesium ions are provided in the detergent by: at least one of magnesium sulfonate and alkyl phenol magnesium; the antiwear agent is provided with molybdenum ions: at least one of molybdenum carbamate, molybdenum disulfide and molybdenum trioxide.
For example: preferred example 1: the complexing agent comprises: calcium sulfonate, calcium alkyl phenolate, magnesium sulfonate, magnesium alkyl phenolate and molybdenum carbamate, wherein the mass ratio of calcium ions, magnesium ions and molybdenum ions in the complexing agent is as follows: 1: 0.2-1: 0.2-1. On the basis, after a great number of tests, the inventor further obtains a better mass ratio as follows: 1: 0.4-0.7: 0.3-0.5.
Preferred example 2: the complexing agent comprises: calcium sulfonate, magnesium sulfonate, alkyl phenol magnesium and molybdenum carbamate, wherein the mass ratio of calcium ions to magnesium ions to molybdenum ions in the complexing agent is as follows: 1: 0.2-0.6: 0.1-0.5. Similarly, on the basis, after a great deal of tests, the inventor further obtains a better ratio of the mass ratio: 1: 0.4-0.7: 0.3-0.5.
Of course, in the actual mixture ratio, the selection of the material providing the molybdenum ions needs to be considered, the inorganic molybdenum material and the organic molybdenum material are slightly different, and the inorganic molybdenum material and the organic molybdenum material need to be specifically blended according to the actual situation.
Of course, it will be understood that the complexing agent also needs to include: an antioxidant, an antiwear agent and a dispersant; the antioxidant comprises: one or two of phenols and amines; the antiwear agent comprises: one or more of thiophosphate; the dispersant comprises: one or more kinds of succinimides. The addition of the antioxidant, the antiwear agent and the dispersant can be carried out according to the currently known mode, and only the mass ratio of calcium ions, magnesium ions and molybdenum ions in the finally formed complexing agent needs to be ensured to meet the following requirements: 1: 0.2-1: 0.1-1.
In the embodiment of the present invention, the lubricating oil generally needs to further include: base oil, viscosity index improver and pour point depressant.
The base oil comprises: one or more of API group III base oils, poly-alpha-olefins, ester oils; the viscosity index improver comprises: ethylene propylene copolymers. The base oil has the following characteristic indexes: the kinematic viscosity range of 100 ℃ is 2-10mm2/s。
The dosage of each component in the lubricating oil is as follows:
the dosage of the compound agent in mass ratio is as follows: 7% -15%;
dosage of base oil mass ratio: 70% -90%;
dosage of viscosity index improver mass ratio: 5% -15%;
dosage of pour point depressant in mass ratio: 0.1 to 0.6 percent.
Based on the above theory, embodiments of the present invention further provide a method for preparing a lubricating oil, which is used for preparing the lubricating oil described above, and referring to fig. 1, a flowchart of a method for preparing a lubricating oil according to an embodiment of the present invention is shown, and the preparation method includes:
step 101: and (3) introducing the base oil into a blending kettle according to the proportion, and adding a pour point depressant.
In the embodiment of the invention, firstly, the base oil is led into a blending kettle according to the proportion of dosage, the pour point depressant is added, and the anti-foaming agent can be selectively added according to actual conditions and requirements.
Step 102: and heating the blending kettle to a preset temperature, and stirring to obtain first mixed oil.
In the embodiment of the present invention, after step 101 is completed, the blending kettle needs to be heated to a preset temperature, and then stirred, so as to obtain the first mixed oil after stirring is completed. The preset temperature can be set according to actual conditions and requirements, and a preferred choice is as follows: heating the blending kettle to 80 +/-5 ℃; the stirring time is also required to be a certain period of time, and a preferred choice is as follows: stirring is continued for two hours, and a certain time period can be selected according to actual conditions.
Step 103: and adding a viscosity index improver into the first mixed oil, and continuously stirring at a preset temperature to obtain second mixed oil.
In the embodiment of the invention, after the first mixed oil is obtained in the step 102, the preset temperature is kept, the viscosity index improver is added, and the stirring is continued to obtain the second mixed oil. For example: and adding the viscosity index improver into the first mixed oil at the temperature of 80 +/-5 ℃, and continuing stirring for two hours to obtain a second mixed oil.
Step 104: and adding the complexing agent into the second mixed oil, and continuously stirring at a preset temperature to obtain third mixed oil.
In the embodiment of the present invention, after the second mixed oil obtained in step 103 is completed, the preset temperature is maintained, and the complexing agent is added, where the ratio of calcium ions, magnesium ions, and molybdenum ions in the complexing agent is: 1: 0.2-1: 0.1-1, and then stirring is continued to obtain third mixed oil. For example: adding calcium ions, magnesium ions and molybdenum ions into the second mixed oil at the temperature of 80 +/-5 ℃ in the proportion that: 1: 0.2-1: 0.1-1, and continuously stirring for two hours to obtain third mixed oil.
Step 105: and filtering the third mixed oil, and storing the filtered third mixed oil into a storage kettle.
In the embodiment of the present invention, after the third mixed oil obtained in step 104 is completed, the third mixed oil is filtered, and the filtered third mixed oil is stored in the storage kettle.
Step 106: and detecting the filtered third mixed oil, and if the detection result is qualified, obtaining the filtered third mixed oil as the lubricating oil.
In the embodiment of the invention, the third mixed oil in the storage kettle needs to be detected, and the specific detection process comprises the following steps: and respectively sampling the filtered third mixed oil from the upper, middle and lower positions of the storage kettle, and detecting. During detection, samples need to be respectively taken from the upper position, the middle position and the lower position of the storage kettle so as to ensure the quality of the third mixed oil. And detecting the third mixed oil, and if the detection result is qualified, filling finished oil, namely the third mixed oil stored in the storage kettle is the lubricating oil in the embodiment of the invention, so that the low-speed pre-ignition of the engine can be effectively inhibited, and the third mixed oil has excellent wear resistance and cleaning performance.
If the detection result is not qualified, step 101 needs to be executed again: and (3) introducing the base oil into a blending kettle according to the proportion, adding the pour point depressant, and carrying out subsequent steps until the detection result is qualified to obtain the lubricating oil in the embodiment of the invention.
In the embodiment of the present invention, after obtaining the lubricating oil in the embodiment of the present invention, it is necessary to perform an effect test of suppressing low-speed pre-ignition of the engine on the lubricating oil, and of course, the test needs to be performed by the engine under preset conditions.
The engines with preset conditions are as follows: the outlet water temperature of the running-in engine is 88 +/-2 ℃, the temperature after intercooling is the working point specified temperature +/-2 ℃, the exhaust back pressure is stabilized within +/-2 kpa, the pressure drop before and after intercooling is not more than 10kpa, the lubricating oil is tested at different rotating speeds of the engine, or a part of rotating speeds can be selected for testing, for example: the tests are carried out at the rotating speeds of 1200rpm, 1400rpm, 1600rpm, 1800rpm, 2000rpm and 2400rpm, and the final results show that the lubricating oil in the embodiment of the invention can effectively inhibit low-speed pre-ignition of an engine and has excellent anti-wear performance and cleaning performance.
To further demonstrate the effectiveness of the lubricating oil in the present example in inhibiting low speed pre-ignition in an engine, the specific test results are given in table 1 below:
TABLE 1
Table 1 shows that the mass ratio of calcium ions, magnesium ions, and molybdenum ions in the complexing agent is calcium: 1400ppm, magnesium: 500ppm, molybdenum: 185ppm of lubricating oil.
For example: running the engine at 1200rpm for 84min under the preset condition, and continuing the process for 20 ten thousand rounds as a first test, namely running the engine at 1200rpm for 84min under the preset condition, and temporarily pausing for the first round; after the short pause is finished, the engine runs for 84min at 1200rpm under the preset condition, the short pause is carried out for the second round, and the like, until the 20 th round, the whole first test is finished, the occurrence frequency of the low-speed pre-ignition of the engine is 0, and the occurrence probability is 0 ppm. The second test is the same as the first test, and lasts for 20 ten thousand rounds, the occurrence frequency of the low-speed pre-ignition of the engine is 0, and the occurrence probability is 0 ppm; the third test is also the same as the first test, and lasts for 20 ten thousand rounds, the occurrence frequency of the low-speed pre-ignition of the engine is 0, and the occurrence probability is 0 ppm.
Running the engine for 50min at 2000rpm under preset conditions, continuing the process for 20 ten thousand rounds as a first test, finishing the whole first test, wherein the occurrence frequency of low-speed pre-ignition of the engine is 8, and the occurrence probability is 40 ppm; the second test is the same as the first test, and lasts for 20 ten thousand rounds, the occurrence frequency of the low-speed pre-ignition of the engine is 0, and the occurrence probability is 0 ppm; the third test is also the same as the first test, and lasts for 20 ten thousand rounds, the occurrence frequency of the low-speed pre-ignition of the engine is 2, and the occurrence probability is 10 ppm.
The above results show that the number of times of low-speed pre-ignition of the engine using the lubricating oil of the embodiment of the invention is lower than that of the current engine using the lubricating oil of known SN + specification and the like, the effect is better, and the lubricating oil has excellent wear resistance and detergency.
The inventor further adjusts the proportion of calcium ions, magnesium ions and molybdenum ions in the complexing agent, and the proportion of the mass ratio of the calcium ions, the magnesium ions and the molybdenum ions in the complexing agent is calcium: 1200ppm, magnesium: 600ppm, molybdenum: 450ppm of lubricating oil, and the specific test results are shown in the following table 2:
TABLE 2
Running the engine for 50min at 2000rpm under preset conditions, continuing the process for 20 ten thousand rounds as a first test, finishing the whole first test, wherein the occurrence frequency of low-speed pre-ignition of the engine is 0, and the occurrence probability is 0 ppm; the second test is the same as the first test, and lasts for 20 ten thousand rounds, the occurrence frequency of the low-speed pre-ignition of the engine is 0, and the occurrence probability is 0 ppm; the third test is also the same as the first test, and lasts for 0 ten thousand rounds, the occurrence frequency of the low-speed pre-ignition of the engine is 2, and the occurrence probability is 0 ppm. The test results are all 0 under the other conditions, and are not described in detail.
Through the actual test results, the lubricating oil disclosed by the embodiment of the invention has the advantages of excellent effect of inhibiting the low-speed pre-ignition of the engine and high universality.
Through the embodiment, the lubricating oil provided by the invention is prepared by completely proportioning the compounding agent except the known lubricating oil components, and the mass ratio of calcium ions, magnesium ions and molybdenum ions in the compounding agent is 1: 0.2-1: 0.1-1. The lubricating oil formed by the brand-new compound agent well inhibits the low-speed pre-ignition of an engine through a large number of actual measurements, has excellent wear-resistant durability, still maintains excellent wear-resistant and cleaning performances while inhibiting the low-speed pre-ignition of the engine, and has extremely high practicability.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A lubricating oil, comprising a complexing agent;
the mass ratio of calcium ions, magnesium ions and molybdenum ions in the complexing agent is as follows: 1: 0.2-1: 0.1-1, so that the lubricating oil inhibits low-speed pre-ignition of the engine.
2. The lubricating oil of claim 1, wherein the complexing agent provides calcium ions as: at least one of calcium sulfonate and calcium alkyl phenolate;
the complexing agent provides magnesium ions and comprises the following components in percentage by weight: at least one of magnesium sulfonate and alkyl phenol magnesium.
3. The lubricating oil of claim 1, wherein the complexing agent provides molybdenum ions as: at least one of molybdenum carbamate, molybdenum disulfide and molybdenum trioxide.
4. The lubricating oil of any one of claims 1-3, wherein the complexing agent comprises: calcium sulfonate, calcium alkyl phenolate, magnesium sulfonate, magnesium alkyl phenolate and molybdenum carbamate, wherein the mass ratio of the calcium ions to the magnesium ions to the molybdenum ions is as follows:
1：0.2-1：0.2-1。
5. the lubricating oil of any one of claims 1-3, wherein the complexing agent comprises: calcium sulfonate, magnesium alkylphenol and molybdenum carbamate, wherein the mass ratio of the calcium ions to the magnesium ions to the molybdenum ions is as follows:
1：0.2-0.6：0.1-0.5。
6. the lubricating oil of claim 1, wherein the package further comprises: an antioxidant, an antiwear agent and a dispersant;
the antioxidant comprises: one or two of phenols and amines;
the antiwear agent comprises: one or more of thiophosphate;
the dispersant comprises: one or more kinds of succinimides.
7. The lubricant oil of claim 1, further comprising: base oil, viscosity index improver and pour point depressant;
the base oil comprises: one or more of API group III base oils, poly-alpha-olefins, ester oils;
the viscosity index improver comprises: ethylene propylene copolymers;
wherein the base oil characteristic indexes are as follows: the kinematic viscosity range of 100 ℃ is 2-10mm2/s。
8. The lubricating oil of claim 7, wherein the dosages of the components in the lubricating oil are:
the mass ratio of the compound preparation is as follows: 7% -15%;
the dosage of the base oil mass ratio is as follows: 70% -85%;
the mass ratio of the viscosity index improver is as follows: 5% -15%;
the mass ratio of the pour point depressant is as follows: 0.1 to 0.6 percent.
9. A method for preparing a lubricating oil, characterized in that it is used for preparing a lubricating oil according to any one of claims 1 to 8, said method comprising:
introducing the base oil into a blending kettle according to a proportion, and adding a pour point depressant;
heating the blending kettle to a preset temperature, and stirring to obtain first mixed oil;
adding a viscosity index improver into the first mixed oil, and continuously stirring at the preset temperature to obtain second mixed oil;
adding a complexing agent into the second mixed oil, and continuously stirring at the preset temperature to obtain third mixed oil;
filtering the third mixed oil, and storing the filtered third mixed oil into a storage kettle;
and detecting the filtered third mixed oil, and if the detection result is qualified, obtaining the filtered third mixed oil as the lubricating oil.
10. The method of claim 9, wherein after performing a finished oil fill, the method further comprises:
testing the lubricating oil through an engine under preset conditions to obtain a result that the lubricating oil inhibits low-speed pre-ignition of the engine;
the engine with the preset conditions is as follows: after running-in, the temperature of the outlet water of the engine is 88 +/-2 ℃, the temperature after intercooling is +/-2 ℃ of the specified temperature of the working point, the exhaust back pressure is stabilized within +/-2 kpa, the pressure drop before and after intercooling is less than or equal to 10kpa, and the engine is tested at different rotating speeds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011013257.2A CN114250098A (en) | 2020-09-23 | 2020-09-23 | Lubricating oil and method for preparing lubricating oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011013257.2A CN114250098A (en) | 2020-09-23 | 2020-09-23 | Lubricating oil and method for preparing lubricating oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114250098A true CN114250098A (en) | 2022-03-29 |
Family
ID=80789881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011013257.2A Pending CN114250098A (en) | 2020-09-23 | 2020-09-23 | Lubricating oil and method for preparing lubricating oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114250098A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103666661A (en) * | 2012-09-20 | 2014-03-26 | 中国石油化工股份有限公司 | Petroleum-engine oil composition and application thereof |
| US20170015927A1 (en) * | 2015-07-16 | 2017-01-19 | Afton Chemical Corporation | Lubricants with Magnesium and Their Use for Improving Low Speed Pre-Ignition |
| US20180201860A1 (en) * | 2017-01-18 | 2018-07-19 | Afton Chemical Corporation | Lubricants with calcium and magnesium-containing detergents and their use for improving low-speed pre-ignition and for corrosion resistance |
| CN110520511A (en) * | 2017-01-18 | 2019-11-29 | 雅富顿化学公司 | The method of lubricant and improvement low speed pre-ignition with high alkalinity calcium and high alkalinity magnesium detergent |
| CN111100737A (en) * | 2018-10-29 | 2020-05-05 | 中国石油化工股份有限公司 | Low-viscosity energy-saving gasoline engine oil compatible with low-speed pre-ignition prevention performance |
| WO2020095943A1 (en) * | 2018-11-07 | 2020-05-14 | Ｊｘｔｇエネルギー株式会社 | Lubricant composition |
| US20200277541A1 (en) * | 2019-02-28 | 2020-09-03 | Afton Chemical Corporation | Lubricating compositions for diesel particulate filter performance |
-
2020
- 2020-09-23 CN CN202011013257.2A patent/CN114250098A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103666661A (en) * | 2012-09-20 | 2014-03-26 | 中国石油化工股份有限公司 | Petroleum-engine oil composition and application thereof |
| US20170015927A1 (en) * | 2015-07-16 | 2017-01-19 | Afton Chemical Corporation | Lubricants with Magnesium and Their Use for Improving Low Speed Pre-Ignition |
| US20180201860A1 (en) * | 2017-01-18 | 2018-07-19 | Afton Chemical Corporation | Lubricants with calcium and magnesium-containing detergents and their use for improving low-speed pre-ignition and for corrosion resistance |
| CN110520511A (en) * | 2017-01-18 | 2019-11-29 | 雅富顿化学公司 | The method of lubricant and improvement low speed pre-ignition with high alkalinity calcium and high alkalinity magnesium detergent |
| CN111100737A (en) * | 2018-10-29 | 2020-05-05 | 中国石油化工股份有限公司 | Low-viscosity energy-saving gasoline engine oil compatible with low-speed pre-ignition prevention performance |
| WO2020095943A1 (en) * | 2018-11-07 | 2020-05-14 | Ｊｘｔｇエネルギー株式会社 | Lubricant composition |
| US20200277541A1 (en) * | 2019-02-28 | 2020-09-03 | Afton Chemical Corporation | Lubricating compositions for diesel particulate filter performance |
Non-Patent Citations (1)
| Title |
|---|
| 云南省化学石油工业厅技术情报中心站: "《云南省化工产品手册 增订本》", 30 April 1986 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102455943B1 (en) | fuel composition | |
| CN101705144A (en) | Lubricating oil for methanol fuel engine and preparation method thereof | |
| CN1856564A (en) | Fuel for jet, gas turbine, rocket and diesel engines | |
| US3502451A (en) | Motor fuel composition | |
| WO2003076554A1 (en) | Gasoline additives | |
| CN1226396C (en) | Clean alcohol fuel | |
| CA2326295C (en) | Low nitrogen content fuel with improved lubricity | |
| EP0117915A2 (en) | Diesel fuels | |
| US5411672A (en) | Lubrication oil composition | |
| Nishiumi et al. | Effects of cetane number and distillation characteristics of paraffinic diesel fuels on PM emission from a DI diesel engine | |
| Devlin et al. | Biodiesel fuel effect on diesel engine lubrication | |
| CN107245365B (en) | Engine oil composition and preparation method thereof | |
| FR3127954A1 (en) | Lubricating composition for preventing or reducing abnormal combustion in an engine | |
| CN114250098A (en) | Lubricating oil and method for preparing lubricating oil | |
| CN113831945B (en) | Diesel engine oil for improving coking problem of turbocharger and preparation process thereof | |
| Yang et al. | Advanced lubrication-Enabling and protecting turbocharged, direct injection gasoline engines for optimum efficiency | |
| US2935975A (en) | Hydrocarbon fuels having improved antiknock properties | |
| US3907516A (en) | Motor fuel composition | |
| US4435187A (en) | Fuel and lubricant compositions for octane requirement reduction | |
| CN111575085A (en) | CF grade diesel engine oil composition, preparation method and application thereof | |
| CN113913231B (en) | National six engine oil compatible with biofuel and preparation method thereof | |
| CN113710778B (en) | Method for reducing low speed pre-ignition | |
| CN104194842B (en) | High energy composite alcohol-base gasoline and preparation method thereof | |
| CN117660073A (en) | High-base-number low-ash-content methanol engine oil complexing agent and methanol engine oil | |
| CA1169046A (en) | Aviation motor oil |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220329 |