CN115678638A - Medium-speed engine oil complexing agent for low-sulfur marine fuel oil and preparation method and application thereof - Google Patents
Medium-speed engine oil complexing agent for low-sulfur marine fuel oil and preparation method and application thereof Download PDFInfo
- Publication number
- CN115678638A CN115678638A CN202211397131.9A CN202211397131A CN115678638A CN 115678638 A CN115678638 A CN 115678638A CN 202211397131 A CN202211397131 A CN 202211397131A CN 115678638 A CN115678638 A CN 115678638A
- Authority
- CN
- China
- Prior art keywords
- speed engine
- engine oil
- base
- medium
- calcium alkyl
- 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
Landscapes
- Lubricants (AREA)
Abstract
The invention discloses a medium-speed engine oil complex agent of low-sulfur marine fuel oil, a preparation method and application thereof, and provides a medium-speed engine oil complex agent of low-sulfur marine fuel oil, which comprises 60-80% of metal detergent, 10-30% of ashless dispersant and 10-15% of zinc dialkyl dithiophosphate in percentage by mass. The medium-speed engine oil complexing agent of the low-sulfur marine fuel oil, provided by the invention, is matched with base oil to prepare 15BN medium-speed engine oil for a ship, has good detergent dispersibility, oxidation resistance and wear resistance, water separation property, acid neutralization and base number retention capacity when being used for a medium-speed cylindrical piston engine for the ship, and can meet the lubricating requirement of the medium-speed engine for the ship taking low-sulfur fuel oil as fuel. In addition, the marine medium-speed engine oil complexing agent does not contain an additive polluting the environment, and belongs to an environment-friendly product.
Description
Technical Field
The invention belongs to the field of fuel oil, and particularly relates to a medium-speed engine oil complexing agent for low-sulfur marine fuel oil, and a preparation method and application thereof.
Background
With the increasing environmental protection situation, the limitation on the sulfur content of the marine fuel oil is also more and more strict. All ships entering a Sulfur Emission Control Area (SECA) after 2015 are required to use low-sulfur fuel with the sulfur content of not more than 0.1%, and high-sulfur fuel with the sulfur content of not more than 3.5% can still be used in open sea Areas, but the ships entering the open sea Areas after 2020 are required to use low-sulfur fuel with the sulfur content of not more than 0.5%.
The working principle and structure of marine medium-speed cylindrical piston engine (medium-speed engine for short) are similar to those of land diesel engine, and all are four-stroke, and the cylinder is communicated with crankcase, so that the medium-speed engine oil can lubricate crankcase and cylinder, and can play the double function of cylinder oil and system oil. However, the specificity of the marine environment makes the medium-speed engine different from a land diesel engine, on one hand, the marine operation strength is high, and in addition, the fuel used by the ship is poorer than the land diesel engine, a large amount of soot can be generated after insufficient combustion, once the soot enters a crankcase, a series of problems of viscosity increase, oxidation and the like of the lubricating oil can be caused, and the oil change period is further shortened. Therefore, the medium speed engine oil has good detergent dispersibility, oxidation resistance, abrasion resistance, acid neutralization and base number retention. On the other hand, the sea has high humidity, and water inevitably enters a crankcase and is emulsified with lubricating oil in the running process of the engine, so that the oil film bearing capacity in the bearing is reduced to cause faults, and therefore the medium-speed engine oil also has good water dividing performance.
Along with the low sulfur of fuel oil, the demand for low-base number medium speed engine oil is increasing day by day, and 15BN low-base number medium speed engine oil will come into wide development space. Therefore, the development of the marine medium-speed engine oil complexing agent which has good comprehensive performance and is suitable for low-sulfur marine fuel oil is imperative.
Disclosure of Invention
The invention mainly aims to provide a medium-speed engine oil complexing agent for low-sulfur marine fuel oil, and a preparation method and application thereof, so as to overcome the defects in the prior art.
In order to achieve the purpose, the technical scheme adopted by the invention comprises the following steps:
according to the first aspect of the embodiment of the invention, the medium-speed engine oil complex agent of the low-sulfur marine fuel oil comprises 60-80% of metal detergent, 10-30% of ashless dispersant and 10-15% of zinc dialkyl dithiophosphate by mass respectively.
Further, the metal detergent comprises at least one of calcium alkyl salicylate and calcium sulfurized alkyl phenate.
Further, the calcium alkyl salicylate comprises at least one of medium-base-number calcium alkyl salicylate, high-base-number calcium alkyl salicylate and ultrahigh-base-number calcium alkyl salicylate.
Further, the sulfurized calcium alkyl phenate comprises at least one of high-base-number sulfurized calcium alkyl phenate and ultrahigh-base-number sulfurized calcium alkyl phenate.
Further, the ashless dispersant comprises at least one of high molecular weight polyisobutylene succinimide and diene polyisobutylene succinimide.
Further, the zinc dialkyl dithiophosphate comprises at least one of zinc butyl octyl dithiophosphate and zinc dioctyl dithiophosphate.
Further, the medium-speed engine oil complexing agent for the ship comprises high-molecular-weight polyisobutylene succinimide, diene-based polyisobutylene succinimide, high-base-number sulfurized calcium alkyl phenate, zinc butyl octyl dithiophosphate and zinc dioctyl dithiophosphate.
According to a second aspect of the embodiments of the present invention, there is provided a method for preparing a marine medium speed engine oil complexing agent, comprising the steps of:
s1, adding an ashless dispersant into a container;
s2, stirring and heating the ashless dispersant in the container, and adding sulfurized calcium alkyl phenate, zinc dialkyl dithiophosphate and calcium alkyl salicylate into the container in sequence during the heating;
and S3, stirring under a heat preservation state, and filtering after uniform stirring to obtain the marine medium-speed engine oil complexing agent.
Further, in step S2, the ashless dispersant in the container is heated to 65-75 ℃ while stirring; and/or in the step S3, the temperature in the heat preservation state is 50-60 ℃.
According to a third aspect of embodiments of the present invention, there is provided a marine medium speed motor oil comprising a base oil and any one of the above marine medium speed motor oil complexes.
Compared with the prior art, the invention has the advantages that:
the medium-speed engine oil complexing agent of the low-sulfur marine fuel oil, which is provided by the invention, is matched with base oil to prepare 15BN marine medium-speed engine oil, has good detergent dispersibility, oxidation resistance and wear resistance, water separation property, acid neutralization and base number retention capacity when being used for a marine medium-speed cylindrical piston engine, and can meet the lubricating requirement of the marine medium-speed engine taking low-sulfur fuel oil as fuel. In addition, the marine medium-speed engine oil complexing agent does not contain an additive polluting the environment, and belongs to an environment-friendly product.
Detailed Description
The present invention is described in further detail below with reference to specific embodiments, and the examples are given only for illustrating the present invention and not for limiting the scope of the present invention. The examples provided below serve as a guide for further modifications by a person skilled in the art and do not constitute a limitation of the invention in any way.
The experimental procedures in the following examples, unless otherwise indicated, are conventional and are carried out according to the techniques or conditions described in the literature in the field or according to the instructions of the products. Materials, reagents and the like used in the following examples are commercially available unless otherwise specified.
The embodiment of the invention provides a medium-speed engine oil complexing agent for low-sulfur marine fuel oil, which comprises 60-80% of metal detergent, 10-30% of ashless dispersant and 10-15% of zinc dialkyl dithiophosphate in percentage by mass.
Preferably, the metal detergent comprises at least one of calcium alkyl salicylate and calcium sulfurized alkylphenol. And the calcium alkyl salicylate and the calcium alkyl phenol sulfide can clean carbon deposit and paint film generated in the running process of the engine on one hand and can neutralize acidic substances generated by incomplete combustion of fuel on the other hand. In addition, compared with calcium alkyl benzene sulfonate, the calcium alkyl salicylate and calcium alkyl phenol sulfide have smaller polarity, and the polar end of the molecular chain is not easy to combine with water and emulsify after contacting with water, so the calcium alkyl benzene sulfonate has good water separating property.
The calcium alkyl salicylate comprises at least one of medium-base-number calcium alkyl salicylate, high-base-number calcium alkyl salicylate and ultrahigh-base-number calcium alkyl salicylate; the base number of the medium-base-number calcium alkyl salicylate is more than or equal to 160mgKOH/g, the base number of the high-base-number calcium alkyl salicylate is more than or equal to 265mgKOH/g, and the base number of the ultrahigh-base-number calcium alkyl salicylate is more than or equal to 340mgKOH/g.
The sulfurized calcium alkyl phenolate comprises at least one of high-base-number sulfurized calcium alkyl phenolate and ultrahigh-base-number sulfurized calcium alkyl phenolate; the base number of the high-base-number sulfurized calcium alkyl phenate is more than or equal to 250mgKOH/g; the alkali value of the ultrahigh-alkali-value sulfurized calcium alkyl phenate is more than or equal to 300mgKOH/g.
Preferably, the ashless dispersant comprises at least one of a high molecular weight polyisobutylene succinimide, a diene based polyisobutylene succinimide. The high molecular weight polyisobutylene succinimide has an average molecular weight >1000. The ashless dispersant has larger oil-soluble groups, can effectively shield soot from mutual aggregation, enables the soot to be dispersed in oil in a form of small particles, prevents the viscosity of lubricating oil from increasing due to soot agglomeration, and can inhibit the formation of carbon deposit and paint film.
Preferably, the zinc dialkyldithiophosphate comprises at least one of zinc octyldithiophosphate and zinc dioctyldithiophosphate. Zinc dialkyl dithiophosphate is a multi-effect additive and has the functions of resisting oxygen, resisting wear and resisting corrosion.
In some embodiments, the marine medium speed engine oil complexing agent comprises a high molecular weight polyisobutylene succinimide, a diene based polyisobutylene succinimide, a high base number sulfurized calcium alkyl phenate, a zinc butyl octyl dithiophosphate, and a zinc dioctyl dithiophosphate.
In an exemplary embodiment, a method for preparing a marine medium speed engine oil complexing agent is provided, which comprises the following steps:
s1, adding an ashless dispersant into a container;
s2, stirring and heating the ashless dispersant in the container to 65-75 ℃, and adding calcium alkylphenol sulfide, zinc dialkyl dithiophosphate and calcium alkyl salicylate into the container in sequence during the period;
and S3, stirring the mixture in a heat preservation environment at the temperature of 50-60 ℃, and filtering the mixture after uniform stirring to obtain the marine medium-speed engine oil complexing agent.
In another exemplary embodiment, a marine medium speed motor oil is provided, comprising a base oil and any one of the above marine medium speed motor oil complexes. The base oil is selected from any one of group I base oil and group II base oil.
The following sets a number of exemplary embodiments to further illustrate the technical solution of the present invention.
Example 1:
the embodiment provides a medium-speed engine oil complexing agent for low-sulfur marine fuel oil, which comprises the following components in percentage by mass: 30% of divinyl polyisobutylene succinimide, 30% of ultrahigh-base-number calcium alkylsalicylate, 30% of ultrahigh-base-number calcium alkylphenol sulfide and 10% of dioctyl zinc dithiophosphate.
The preparation method comprises the following steps: adding a bis-alkenyl polyisobutylene succinimide to a vessel; heating to 65 ℃ while stirring, and simultaneously adding ultrahigh-base-number calcium alkylphenol sulfide, dioctyl zinc dithiophosphate and ultrahigh-base-number calcium alkylsalicylate into the container in sequence; keeping the temperature at 50 ℃, stirring for 5 hours, and filtering to obtain the marine medium-speed engine oil complexing agent.
Example 2:
the embodiment provides a medium-speed engine oil complexing agent for low-sulfur marine fuel oil, which comprises the following components in percentage by mass: 8 percent of high molecular weight polyisobutylene succinimide, 9 percent of diene polyisobutylene succinimide, 7 percent of medium-base-number calcium alkylsalicylate, 12 percent of high-base-number calcium alkylsalicylate, 22 percent of ultrahigh-base-number calcium alkylsalicylate, 32 percent of high-base-number sulfurized calcium alkyl phenate, 4 percent of butyl zinc dithiophosphate and 6 percent of dioctyl zinc dithiophosphate.
The preparation method comprises the following steps: adding high molecular weight polyisobutylene succinimide and diene-based polyisobutylene succinimide to a vessel; heating to 75 ℃ while stirring, and simultaneously adding high-base-number calcium alkylphenol sulfide, butyl octyl zinc dithiophosphate, dioctyl zinc dithiophosphate, medium-base-number calcium alkyl salicylate, high-base-number calcium alkyl salicylate and ultrahigh-base-number calcium alkyl salicylate into the container in sequence; keeping the temperature at 60 ℃, stirring for 3 hours, and filtering to obtain the marine medium-speed engine oil complexing agent.
Example 3:
the embodiment provides a medium-speed engine oil complexing agent for low-sulfur marine fuel oil, which comprises the following components in percentage by mass: 10% of dialkenyl polyisobutylene succinimide, 25% of medium-base-number calcium alkyl salicylate, 55% of ultrahigh-base-number calcium alkyl sulfide, and 10% of dioctyl zinc dithiophosphate.
The preparation method comprises the following steps: adding a bis-alkenyl polyisobutylene succinimide to a vessel; heating to 70 ℃ while stirring, and simultaneously adding the ultrahigh-base-number calcium alkylphenol sulfide, the dioctyl zinc dithiophosphate and the medium-base-number calcium alkylsalicylate into the container in sequence; keeping the temperature at 55 ℃, stirring for 4 hours, and filtering to obtain the marine medium-speed engine oil complexing agent.
Example 4:
the embodiment provides a medium-speed engine oil complexing agent for low-sulfur marine fuel oil, which comprises the following components in percentage by mass: 17% of dialkenyl polyisobutylene succinimide, 7% of medium-base-number calcium alkyl salicylate, 12% of high-base-number calcium alkyl salicylate, 20% of ultrahigh-base-number calcium alkyl salicylate, 32% of high-base-number sulfurized calcium alkyl phenate and 12% of dioctyl zinc dithiophosphate.
The preparation method comprises the following steps: adding a bis-alkenyl polyisobutylene succinimide to a vessel; heating to 70 ℃ while stirring, and simultaneously adding high-base-number calcium alkylphenol sulfide, dioctyl zinc dithiophosphate, medium-base-number calcium alkyl salicylate, high-base-number calcium alkyl salicylate and ultrahigh-base-number calcium alkyl salicylate into the container in sequence; keeping the temperature at 55 ℃, stirring for 4 hours, and filtering to obtain the marine medium-speed engine oil complexing agent.
Example 5:
the embodiment provides a medium-speed engine oil complexing agent for low-sulfur marine fuel oil, which comprises the following components in percentage by mass: 17% of divinyl polyisobutylene succinimide, 7% of medium-base-number calcium alkyl salicylate, 12% of high-base-number calcium alkyl salicylate, 22% of ultrahigh-base-number calcium alkyl salicylate, 27% of ultrahigh-base-number calcium alkylphenol sulfide and 15% of zinc butyl octyl dithiophosphate.
The preparation method comprises the following steps: adding a bis-alkenyl polyisobutylene succinimide to a vessel; heating to 70 ℃ while stirring, and simultaneously adding ultrahigh-base-number calcium alkylphenol sulfide, zinc butyloctyl dithiophosphate, medium-base-number calcium alkyl salicylate, high-base-number calcium alkyl salicylate and ultrahigh-base-number calcium alkyl salicylate into the container in sequence; keeping the temperature at 55 ℃, stirring for 4 hours, and filtering to obtain the marine medium-speed engine oil complexing agent.
Comparative example 1:
the comparative example provides a medium speed engine oil complexing agent for low sulfur marine fuel oil, which comprises the following components in percentage by mass: 8% of high molecular weight polyisobutylene succinimide, 9% of diene polyisobutylene succinimide, 73% of high base number sulfurized calcium alkyl phenate, 4% of butyl zinc dithiophosphate and 6% of dioctyl zinc dithiophosphate.
The preparation method comprises the following steps: adding a high molecular weight polyisobutylene succinimide and a diene based polyisobutylene succinimide to a vessel; heating to 75 ℃ while stirring, and simultaneously adding high-base-number sulfurized calcium alkyl phenate, zinc butyl octyl dithiophosphate and zinc dioctyl dithiophosphate into the container in sequence; keeping the temperature at 60 ℃, stirring for 3 hours, and filtering to obtain the marine medium-speed engine oil complexing agent.
Comparative example 2:
the comparative example provides a medium-speed engine oil complexing agent for low-sulfur marine fuel oil, which comprises the following components in percentage by mass: 8 percent of high molecular weight polyisobutylene succinimide, 9 percent of diene polyisobutylene succinimide, 4 percent of low-base-number calcium alkyl benzene sulfonate (the base number is more than or equal to 20 mgKOH/g), 37 percent of high-base-number calcium alkyl benzene sulfonate (the base number is more than or equal to 300 mgKOH/g), 32 percent of high-base-number sulfurized calcium alkyl phenate, 4 percent of butyl zinc dithiophosphate and 6 percent of dioctyl zinc dithiophosphate.
The preparation method comprises the following steps: adding a high molecular weight polyisobutylene succinimide and a diene based polyisobutylene succinimide to a vessel; heating to 75 ℃ while stirring, and simultaneously adding high-base-number calcium alkyl sulfide, zinc butyl octyl dithiophosphate, zinc dioctyl dithiophosphate, low-base-number calcium alkyl benzene sulfonate and high-base-number calcium alkyl benzene sulfonate into the container in sequence; keeping the temperature at 60 ℃, stirring for 3 hours, and filtering to obtain the marine medium-speed engine oil complexing agent.
Comparative example 3:
the comparative example provides a medium-speed engine oil complexing agent for low-sulfur marine fuel oil, which comprises the following components in percentage by mass: 8 percent of high molecular weight polyisobutylene succinimide, 9 percent of diene polyisobutylene succinimide, 7.5 percent of low-base-number calcium alkyl benzene sulfonate (the base number is more than or equal to 20 mgKOH/g), 65.5 percent of high-base-number calcium alkyl benzene sulfonate (the base number is more than or equal to 300 mgKOH/g), 4 percent of butyl-octyl zinc dithiophosphate and 6 percent of dioctyl zinc dithiophosphate.
The preparation method comprises the following steps: adding high molecular weight polyisobutylene succinimide and diene-based polyisobutylene succinimide to a vessel; heating to 75 ℃ while stirring, and simultaneously adding 65.5% of zinc butyl octyl dithiophosphate, zinc dioctyl dithiophosphate, low-base-number calcium alkyl benzene sulfonate and high-base-number calcium alkyl benzene sulfonate into the container in sequence; keeping the temperature at 60 ℃, stirring for 3 hours, and filtering to obtain the marine medium-speed engine oil complexing agent.
The intermediate speed engine oil for ships of 4015 (SAE 40, TBN 15) was prepared from examples 1 to 5 and comparative examples 1 to 3 in the same addition amount with the thickened base oil, and the performance was evaluated. The formula of the thickened base oil comprises 72.4% of II type 500N base oil and 20.4% of I type 150BS base oil.
Comparative experiment 1: according to NB/SH/T0832-measurement of hot surface oxidation of lubricating oil (pressure differential scanning calorimetry), the oxidation resistance of oil is evaluated (the condition: 210 ℃ C., the result is oxidation induction period), and the specific results are shown in Table 1.
TABLE 1 results of the oxidation resistance tests on different oils
| Oxidative induction period, min | |
| Example 1 | 69.4 |
| Example 2 | 71.5 |
| Example 3 | 70.2 |
| Example 4 | 73.4 |
| Example 5 | 76.8 |
| Comparative example 1 | 72.0 |
| Comparative example 2 | 46.3 |
| Comparative example 3 | 31.8 |
Remarking: and (3) inspecting the oxidation resistance of the oil product in the oxidation induction period, wherein the longer the time is, the better the oxidation resistance of the oil product is.
As can be seen from Table 1, in comparison with comparative examples 1 to 3, calcium alkylsalicylate and calcium alkylphenol sulfide in examples 1 to 5 both have a certain oxidation resistance, and both act together with zinc dialkyldithiophosphate to inhibit oxidation of oil products.
Comparative experiment 2: the antiwear properties of the oils were evaluated according to SH/T0189-method for measuring antiwear properties of lubricating oils (four-ball method) (conditions: 392N, 75 ℃, 1200r/min, 60min, resulting in a wear-spot diameter), and extreme pressure properties of the oils were evaluated according to GB/T3142-method for measuring load-bearing capacity of lubricants (four-ball method) (resulting in a maximum seizure-free load PB), with the specific results shown in Table 2.
TABLE 2 abrasion resistance test results for different oils
| Abrasion spot diameter, mm | Maximum no-seizing load P B ，N | |
| Example 1 | 0.453 | 980 |
| Example 2 | 0.442 | 1049 |
| Example 3 | 0.440 | 1049 |
| Example 4 | 0.438 | 1049 |
| Example 5 | 0.425 | 1049 |
| Comparative example 1 | 0.443 | 1049 |
| Comparative example 2 | 0.445 | 1049 |
| Comparative example 3 | 0.441 | 1049 |
Remarking: the wear resistance of the oil product is inspected according to the diameter of the wear marks, and the smaller the diameter of the wear marks is, the better the wear resistance of the oil product is; the maximum non-seizure load PB is used for investigating the extreme pressure performance of the oil, and the greater the PB value is, the better the extreme pressure performance of the oil is.
As can be seen from Table 2, with the zinc dialkyldithiophosphates in examples 1 to 5 and comparative examples 1 to 3, the oils are excellent in anti-wear properties and extreme pressure properties.
Comparative experiment 3: the clean dispersancy performance of the oil is evaluated according to the measurement of NB/SH/T0906-engine oil thermal stability (heat pipe test method) (the condition is 320 ℃, and the result is the heat pipe weight gain), the deposition tendency of the oil in the piston ring area and the piston crown area is predicted according to the measurement of NB/SH/T0834-engine oil moderate high-temperature piston deposition (thermal oxidation simulation test method, TEOST MHT), so as to evaluate the high-temperature clean performance of the oil, and the specific results are shown in Table 3.
TABLE 3 detergent dispersion test results for different oils
| Weight gain of heat pipe, mg | TEOST MHT deposit quality, mg | |
| Example 1 | 0.9 | 42.4 |
| Example 2 | 0.6 | 39.6 |
| Example 3 | 0.7 | 40.5 |
| Example 4 | 0.7 | 38.5 |
| Example 5 | 0.6 | 39.8 |
| Comparative example 1 | 2.0 | 61.2 |
| Comparative example 2 | 1.2 | 50.4 |
| Comparative example 3 | 2.3 | 60.8 |
Remarking: the heat pipe test inspects the cleaning and dispersing performance of the oil product, and the less the weight of the heat pipe is increased, the better the cleaning and dispersing performance of the oil product is; the TEOST MHT inspects the high-temperature cleaning performance of the oil product, and the lower the quality of the sediment, the better the high-temperature cleaning performance of the oil product.
As can be seen from Table 3, the presence of calcium alkylsalicylate in examples 1 to 5 is advantageous in suppressing the generation of deposits, compared to comparative examples 1 to 3.
Comparative test 4: the water-separating performance of the oil was evaluated by an SH/T0619-method for measuring oil-water separability for ships (the results are the volumes of the water layer and the emulsion layer), and the specific results are shown in Table 4.
TABLE 4 Water-separating Properties of the different oils test results
| Volume of aqueous layer, mL | Emulsion layer volume, mL | |
| Example 1 | 1.60 | 0.30 |
| Example 2 | 1.85 | 0.15 |
| Example 3 | 1.90 | 0.10 |
| Example 4 | 1.80 | 0.20 |
| Example 5 | 1.75 | 0.25 |
| Comparative example 1 | 1.90 | 0.10 |
| Comparative example 2 | 1.80 | 0.20 |
| Comparative example 3 | 1.70 | 0.30 |
Remarking: the larger the volume of the water layer is, the smaller the volume of the emulsion layer is, and the better the water-separating property of the oil product is.
As can be seen from table 4, compared to comparative example 3, comparative examples 2 to 3 and examples 1 to 5, which have at least one of calcium alkylsalicylate and calcium alkylphenylsulfide, have good water-separating properties because the polar end of the molecular chain is not easily combined with water and emulsified after contacting with water because of its low polarity.
The foregoing describes only some embodiments of the present invention and modifications and variations thereof will be apparent to those skilled in the art without departing from the spirit and scope of the invention.
Claims (10)
1. The medium-speed engine oil complexing agent for the low-sulfur marine fuel oil is characterized by comprising the following components in parts by weight: the metal detergent, the ashless dispersant and the zinc dialkyl dithiophosphate are included, and the mass percentages of the components are respectively 60-80% of the metal detergent, 10-30% of the ashless dispersant and 10-15% of the zinc dialkyl dithiophosphate.
2. The medium speed engine oil complex of claim 1, characterized in that: the metal detergent comprises at least one of calcium alkyl salicylate and calcium sulfurized alkylphenol.
3. The medium speed engine oil complex of claim 2, characterized in that: the calcium alkyl salicylate comprises at least one of medium-base-number calcium alkyl salicylate, high-base-number calcium alkyl salicylate and ultrahigh-base-number calcium alkyl salicylate.
4. The marine medium speed engine oil complexing agent according to claim 2, characterized in that: the sulfurized calcium alkyl phenolate comprises at least one of high-base-number sulfurized calcium alkyl phenolate and ultrahigh-base-number sulfurized calcium alkyl phenolate.
5. The marine medium speed engine oil complexing agent according to claim 1, characterized in that: the ashless dispersant comprises at least one of high molecular weight polyisobutylene succinimide and diene group polyisobutylene succinimide.
6. The marine medium speed engine oil complexing agent according to claim 1, characterized in that: the zinc dialkyl dithiophosphate comprises at least one of zinc butyl octyl dithiophosphate and zinc dioctyl dithiophosphate.
7. The marine medium speed engine oil complex according to claim 1, characterized in that: comprises high molecular weight polyisobutylene succinimide, diene polyisobutylene succinimide, high base number sulfurized calcium alkyl phenolate, zinc butyl octyl dithiophosphate and zinc dioctyl dithiophosphate.
8. The preparation method of the marine medium speed engine oil complexing agent according to any one of claims 1 to 7, characterized by comprising the following steps:
s1, adding an ashless dispersant into a container;
s2, stirring and heating the ashless dispersant in the container, and adding sulfurized calcium alkyl phenate, zinc dialkyl dithiophosphate and calcium alkyl salicylate into the container in sequence during the heating;
and S3, stirring under a heat preservation state, and filtering after uniform stirring to obtain the marine medium-speed engine oil complexing agent.
9. The preparation method of the marine medium speed engine oil complexing agent according to claim 8 is characterized in that: in the step S2, the ashless dispersant in the container is stirred and heated to 65-75 ℃; and/or in the step S3, the temperature in the heat preservation state is 50-60 ℃.
10. A marine medium speed engine oil comprising a base oil and the marine medium speed engine oil complex of any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211397131.9A CN115678638A (en) | 2022-11-09 | 2022-11-09 | Medium-speed engine oil complexing agent for low-sulfur marine fuel oil and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211397131.9A CN115678638A (en) | 2022-11-09 | 2022-11-09 | Medium-speed engine oil complexing agent for low-sulfur marine fuel oil and preparation method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115678638A true CN115678638A (en) | 2023-02-03 |
Family
ID=85049130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211397131.9A Pending CN115678638A (en) | 2022-11-09 | 2022-11-09 | Medium-speed engine oil complexing agent for low-sulfur marine fuel oil and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115678638A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1282782A (en) * | 1999-08-03 | 2001-02-07 | 中国石油兰州炼油化工总厂 | Universal composite additive for IC engine oil |
| US20030008784A1 (en) * | 2001-06-01 | 2003-01-09 | Crompton Corporation | Oxadiazole additives for lubricants |
| CN102086420A (en) * | 2009-12-03 | 2011-06-08 | 中国石油天然气股份有限公司 | Lubricating oil composition for marine medium-speed cylindrical diesel engine |
| WO2017188087A1 (en) * | 2016-04-25 | 2017-11-02 | コスモ石油ルブリカンツ株式会社 | Lubricant oil composition for internal combustion engine |
| CN110358612A (en) * | 2019-08-06 | 2019-10-22 | 辽宁百特润滑科技有限责任公司 | A kind of bunker oil complexing agent, preparation method and application |
| CN112011387A (en) * | 2020-09-28 | 2020-12-01 | 新乡市瑞丰新材料股份有限公司 | SN-grade gasoline and engine oil complexing agent and preparation method thereof |
| CN112143542A (en) * | 2020-09-30 | 2020-12-29 | 新乡市瑞丰新材料股份有限公司 | Diesel engine oil complexing agent and preparation method thereof |
| CN112159697A (en) * | 2020-09-29 | 2021-01-01 | 中国石油化工股份有限公司 | Marine medium-speed engine oil composition, preparation method and application thereof |
| CN113930278A (en) * | 2021-11-02 | 2022-01-14 | 新乡市瑞丰新材料股份有限公司 | Gasoline engine oil complexing agent with excellent performance and preparation method thereof |
-
2022
- 2022-11-09 CN CN202211397131.9A patent/CN115678638A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1282782A (en) * | 1999-08-03 | 2001-02-07 | 中国石油兰州炼油化工总厂 | Universal composite additive for IC engine oil |
| US20030008784A1 (en) * | 2001-06-01 | 2003-01-09 | Crompton Corporation | Oxadiazole additives for lubricants |
| CN102086420A (en) * | 2009-12-03 | 2011-06-08 | 中国石油天然气股份有限公司 | Lubricating oil composition for marine medium-speed cylindrical diesel engine |
| WO2017188087A1 (en) * | 2016-04-25 | 2017-11-02 | コスモ石油ルブリカンツ株式会社 | Lubricant oil composition for internal combustion engine |
| CN110358612A (en) * | 2019-08-06 | 2019-10-22 | 辽宁百特润滑科技有限责任公司 | A kind of bunker oil complexing agent, preparation method and application |
| CN112011387A (en) * | 2020-09-28 | 2020-12-01 | 新乡市瑞丰新材料股份有限公司 | SN-grade gasoline and engine oil complexing agent and preparation method thereof |
| CN112159697A (en) * | 2020-09-29 | 2021-01-01 | 中国石油化工股份有限公司 | Marine medium-speed engine oil composition, preparation method and application thereof |
| CN112143542A (en) * | 2020-09-30 | 2020-12-29 | 新乡市瑞丰新材料股份有限公司 | Diesel engine oil complexing agent and preparation method thereof |
| CN113930278A (en) * | 2021-11-02 | 2022-01-14 | 新乡市瑞丰新材料股份有限公司 | Gasoline engine oil complexing agent with excellent performance and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 张倩;安谧;: "柴油机油添加剂的稳定性研究", 石油炼制与化工, no. 04, pages 71 - 75 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1257256C (en) | Lubricating oil composition | |
| US6329328B1 (en) | Lubricant oil composition for internal combustion engines | |
| CN1869179B (en) | A method of lubricating a crosshead engine | |
| EP1013750B1 (en) | Use of a lubricant oil composition in diesel engines | |
| JP3993901B2 (en) | Lubricating oil composition | |
| CN101115824B (en) | Lubricant composition for a four-stroke marine engine | |
| CN102477340B (en) | Lubricant composition for internal combustion engines | |
| EP1203806A1 (en) | Lubricant oil composition for internal combustion engines | |
| US6245719B1 (en) | Lubricant oil composition | |
| JP2002275491A (en) | Lubricating oil composition | |
| JP2001226691A (en) | Lubricant composition foe diesel internal combustion engine and additive composition | |
| JP2012144747A (en) | Lubricant composition | |
| CN107532101A (en) | Lubrication oil antiwear agent, lubricating oil complexing agent, lubricating oil and application | |
| CN112011387A (en) | SN-grade gasoline and engine oil complexing agent and preparation method thereof | |
| US7148186B2 (en) | Lubricant oil composition for diesel engines (LAW964) | |
| CN105073960A (en) | Lubricating composition based on aminated compounds | |
| CA2314194A1 (en) | Lubricant oil composition for diesel engines | |
| CN115678638A (en) | Medium-speed engine oil complexing agent for low-sulfur marine fuel oil and preparation method and application thereof | |
| CN112239697A (en) | Marine cylinder oil composition and application thereof | |
| Hutchings et al. | Heavy duty diesel deposit control.... prevention as a cure | |
| Colyer et al. | Detergents/dispersants | |
| CN108018111A (en) | A kind of heavy load CNG natural gas engines machine oil complexing agent and its preparation method and application | |
| RU1819287C (en) | Lubricant composition for internal engines | |
| US7737094B2 (en) | Engine wear protection in engines operated using ethanol-based fuel | |
| CN117925303A (en) | Marine cylinder oil composition with high antioxidant property and low base number as well as preparation method and application thereof |
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 |