CN114149843A - Engine oil additive and preparation method and application thereof - Google Patents

Engine oil additive and preparation method and application thereof Download PDF

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Publication number
CN114149843A
CN114149843A CN202010935441.6A CN202010935441A CN114149843A CN 114149843 A CN114149843 A CN 114149843A CN 202010935441 A CN202010935441 A CN 202010935441A CN 114149843 A CN114149843 A CN 114149843A
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engine oil
antioxidant
oil additive
additive
engine
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CN114149843B (en
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黄鑫
张升
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China Petroleum and Chemical Corp
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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
    • C10M141/00—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential
    • C10M141/06—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential at least one of them being an organic nitrogen-containing compound
    • 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
    • C10M141/00—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential
    • C10M141/08—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential at least one of them being an organic sulfur-, selenium- or tellurium-containing compound
    • 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
    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • 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
    • C10M2219/06—Thio-acids; Thiocyanates; Derivatives thereof
    • C10M2219/062—Thio-acids; Thiocyanates; Derivatives thereof having carbon-to-sulfur double bonds
    • C10M2219/066—Thiocarbamic type compounds
    • C10M2219/068—Thiocarbamate metal salts

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)

Abstract

The invention relates to the technical field of engine oil, in particular to an engine oil additive and a preparation method and application thereof. The engine oil additive provided by the invention consists of a binary molybdenum antifriction agent and an antioxidant; the binary molybdenum friction reducer is Adeka Sakura LububeTMS525 and/or POUPC1002, wherein the antioxidant is an amine antioxidant BASF L67. The additive can be directly added into the engine oil with the requirement of inhibiting low-speed pre-ignition performance, and the addition amount is 0.7-2 percent by weight percent. The additive can effectively reduce the knocking frequency of the turbocharged engine under the working conditions of low rotating speed and high torque, and can effectively improve the oxidation resistance of engine oil.

Description

Engine oil additive and preparation method and application thereof
Technical Field
The invention relates to the technical field of engine oil, in particular to an engine oil additive and a preparation method and application thereof.
Background
Based on the far-reaching influence of greenhouse gases on global warming, the demands of people on environmental protection, energy conservation and emission reduction are increasing day by day. The automobile is one of main sources of pollutant emission, and how to make the automobile more energy-saving and emission-reduction so as to meet the requirement of environmental protection is an important research direction. Therefore, in the field of automobile manufacturing, a trend of adopting a small-emission automobile engine is appeared, and along with the popularization and application of a turbo-charged direct injection Technology (TGDI), however, engine knocking easily occurs in the turbo-charged direct injection engine under the working conditions of low rotating speed and high torque, the phenomenon is called low-speed pre-ignition (LSPI) in the industry, the low-speed pre-ignition can cause serious damage to the engine, and the existing methods for solving the problem include methods of improving engine calibration, improving engine hardware and the like, but the methods can increase the manufacturing cost of the engine, and do not have wide applicability.
Therefore, it is important to develop a new method that can be used to improve the low-speed pre-ignition inhibition performance of engine oils.
Disclosure of Invention
To solve the problems of the prior art, it is an object of the present invention to provide a novel additive having excellent low-speed pre-ignition suppressing properties and capable of improving the oxidation resistance of an engine oil.
In order to achieve the purpose, the technical scheme of the invention is as follows:
an engine oil additive consists of a binary molybdenum antifriction agent and an antioxidant; the binary molybdenum friction reducer is Adeka Sakura LububeTMS525 and/or POUPC1002, wherein the antioxidant is an amine antioxidant BASF L67.
In the process of researching and developing the low-speed pre-ignition inhibitor for the engine oil, the binary molybdenum friction reducer and the antioxidant both have certain low-speed pre-ignition inhibiting capability, but the binary molybdenum friction reducer or the antioxidant which is used independently in the engine oil has limited effect on improving the low-speed pre-ignition inhibiting performance of the engine oil, and finally, a great deal of research and practice shows that the low-speed pre-ignition inhibitor obtained by compounding the specific binary molybdenum friction reducer and the amine antioxidant has excellent low-speed pre-ignition inhibiting performance, can effectively reduce the low-speed pre-ignition frequency of a turbocharged engine with less addition amount, and simultaneously improves the antioxidant performance of the engine oil.
In the invention, the engine oil additive comprises, by weight, 50-90 parts of the binary molybdenum antifriction agent and 10-50 parts of the antioxidant.
Preferably, the mass ratio of the binary molybdenum friction reducer to the antioxidant is (1-9): 1, more preferably, the mass ratio of the binary molybdenum friction reducer to the antioxidant is (1-3): 1, not only effectively reducing the low-speed pre-ignition frequency of the turbocharged engine, but also effectively improving the oxidation resistance of the engine oil.
The invention further ensures the realization of oxidation resistance and low-speed pre-ignition frequency reduction performance by adjusting the using amounts of the binary molybdenum friction reducer and the antioxidant.
The engine oil additive comprises the following components in parts by weight: adeka Sakura LububeTMS525 or POUPC 100250-90 parts, BASF L6710-50 parts.
Preferably, the composition comprises the following components in parts by weight: adeka Sakura LububeTMS525 or POUPC100270-72 parts and BASF L6728-30 parts, so as to obtain more excellent comprehensive performance.
More preferably, Adeka Sakura LububeTMS525 or POUPC 100271.5 parts, BASF L6728.5 parts.
The invention also provides a preparation method of the engine oil additive, and specifically the binary molybdenum friction reducer and the antioxidant are uniformly mixed at the temperature of 60-65 ℃.
The invention also provides application of the engine oil additive or the method in preparation of engine oil.
And further provides an engine oil containing the engine oil additive.
In the engine oil, the mass percentage of the engine oil additive is 0.7-2%, preferably 1-2%, so as to be beneficial to realizing comprehensive effects.
The engine oil of the present invention is particularly useful in turbocharger engines.
The invention has the beneficial effects that:
the additive for the engine oil provided by the invention has excellent low-speed pre-ignition inhibiting performance, can effectively reduce the frequency of low-speed pre-ignition of a turbocharged engine under the condition of small addition amount, and can simultaneously improve the oxidation resistance of the engine oil.
Detailed Description
Preferred embodiments of the present invention will be described in detail with reference to the following examples. It is to be understood that the following examples are given for illustrative purposes only and are not intended to limit the scope of the present invention. Various modifications and alterations of this invention will become apparent to those skilled in the art without departing from the spirit and scope of this invention.
The experimental procedures used in the following examples are all conventional procedures unless otherwise specified.
The materials, reagents and the like used in the following examples are commercially available, unless otherwise specified, wherein S525 is available from ADEKA (Adeka Sakura Lubube)TM) (ii) a L67 was purchased from BASF. The commercially available SN/GF-50W-20 engine oil used in all of the following examples and comparative examples was the same SN/GF-50W-20 engine oil, which was a J700F SN/GF-50W-20 engine oil available from China petrochemical lubricating oil, Inc.
The friction reducers in all the following examples and comparative examples were prepared as follows: mixing the components according to the mass ratio, and stirring for 2 hours at the temperature of 60-65 ℃ to mix uniformly.
Example 1
The embodiment provides an engine oil additive, which consists of the following components in percentage by weight:
S525 71.5％；
L67 28.5％。
example 2
The embodiment provides an engine oil additive, which consists of the following components in percentage by weight:
S525 87.3％；
L67 12.7％。
example 3
The embodiment provides an engine oil additive, which consists of the following components in percentage by weight:
S525 50.2％；
L67 49.8％。
example 4
The embodiment provides engine oil which comprises the following components in percentage by weight: 1% of the engine oil additive of example 1, 99% of a commercially available SN/GF-50W-20 engine oil.
Example 5
The embodiment provides engine oil which comprises the following components in percentage by weight: the engine oil additive of example 2 was 1%, and the commercially available SN/GF-50W-20 engine oil was 99%.
Example 6
The embodiment provides engine oil which comprises the following components in percentage by weight: the engine oil additive of example 3 was 1%, and the commercially available SN/GF-50W-20 engine oil was 99%.
Example 7
The embodiment provides an engine oil which is composed of the following components in percentage by weight: 1 percent of engine oil additive and 99 percent of commercially available SN/GF-50W-20 engine oil. The engine oil additive comprises the following components in percentage by weight:
POUPC1002 71.5％；
L67 28.5％。
POUPC1002 is available from the United states of Pacifics (Beijing) petrochemical Co.
Comparative example 1
The comparative example provides an engine oil additive, which consists of the following components in percentage by weight:
S525 100％
comparative example 2
The comparative example provides engine oil which comprises the following components in percentage by weight:
100% of commercially available SN/GF-50W-20 engine oil.
Comparative example 3
The comparative example provides engine oil which comprises the following components in percentage by weight:
1% of the engine oil additive of comparative example 1, and 99% of a commercially available SN/GF-50W-20 engine oil.
Comparative example 4
The present comparative example provides an engine oil consisting of the following components in weight percent: 1 percent of engine oil additive and 99 percent of commercially available SN/GF-50W-20 engine oil. The engine oil additive comprises the following components in percentage by weight:
S525 40％；
L67 60％。
comparative example 5
The present comparative example provides an engine oil consisting of the following components in weight percent: 1 percent of engine oil additive and 99 percent of commercially available SN/GF-50W-20 engine oil. The engine oil additive comprises the following components in percentage by weight:
S525 71.5％；
Hitec 4793 28.5％。
hitec 4793 is available from jafton corporation.
Comparative example 6
The present comparative example provides an engine oil consisting of the following components in weight percent: 1 percent of engine oil additive and 99 percent of commercially available SN/GF-50W-20 engine oil. The engine oil additive comprises the following components in percentage by weight:
Molyvan 807 71.5％；
Vanlube 81 28.5％。
molyvan 807 was purchased from RTVAN-THICK corporation; vanlube 81 is available from Vanbibel corporation.
Experimental example 1 antioxidant ability of Engine oil
The engine oils of the above examples 4 to 7 and comparative examples 2 to 6 were tested for oxidation resistance using oxidation induction period test (PDSC) and rotating oxygen nitrogen test, respectively, and the results are shown in Table 1.
Oxidative induction Period (PDSC) test temperature conditions were: 190 ℃;
the temperature conditions of the rotating oxygen and nitrogen test are as follows: at 150 ℃.
TABLE 1 antioxidant Capacity analysis of Engine oils
Figure BDA0002671752970000061
Wherein the more ═ is the better antioxidant activity.
The difference between the oxidation induction Period (PDSC) and the rolling oxygen nitrogen is that the oxidation induction Period (PDSC) test mainly simulates the oxidation process of the engine oil film, the rolling oxygen nitrogen test mainly simulates the volume oxidation process of the engine oil, and the longer the oxidation time of the two tests represents the better oxidation resistance. The results show that the oxidation time of the engine oil of example 4 in the oxidation induction Period (PDSC) test is increased by 7.6% compared to example 5, by 6.5% compared to example 6, by 2% compared to example 7, by 12.5% compared to comparative example 2, by 50% compared to comparative example 3, by 5.7% compared to comparative example 4, by 8.8% compared to comparative example 5, and by 39.4% compared to comparative example 6.
In the rotating oxygen nitrogen test, the oxidation time of the engine oil of example 4 was increased by 5.1% as compared to example 5, 4.1% as compared to example 6, 1% as compared to example 7, 6.8% as compared to the engine oil of comparative example 2, 25.4% as compared to the engine oil of comparative example 3, 1.8% as compared to comparative example 4, 6.1% as compared to comparative example 5, and 14.5% as compared to comparative example 6.
In conclusion, it can be seen that the engine oil of example 4 has significantly better antioxidant properties than those of example 5, example 6, comparative example 2, comparative example 3, comparative example 5 and comparative example 6, and slightly lower antioxidant properties than those of comparative example 4.
Experimental example 2 Low-speed preignition suppressing Performance of Engine oil
The engine oils of the above examples 4 to 7 and comparative examples 2 to 6 were respectively tested for low-speed pre-ignition inhibition performance by a low-speed pre-ignition test, and the results are shown in Table 2.
The low-speed pre-ignition test method comprises the following steps: the number of pre-ignition occurrences was recorded using a turbocharged direct injection (TGDI) engine operating at 1200rpm, 1400rpm, 1600rpm, 1800rpm, 2000rpm, 2200rpm, 2500rpm for 30 minutes each at full load.
TABLE 2 analysis of Low-speed preignition inhibition ability of Engine oils
Figure BDA0002671752970000071
Wherein the more ≧ represents the better low-speed preignition suppression capability.
As can be seen from Table 2, the number of low-speed preignitions of the engine oil of example 4 was reduced by 66.7% as compared with example 5, 50% as compared with example 6, 50% as compared with example 7, 87.5% as compared with comparative example 2, 75% as compared with comparative example 3, 80% as compared with comparative example 4, 80% as compared with comparative example 5, and 83.3% as compared with comparative example 6.
In summary, it can be seen that the low speed pre-ignition suppression capability of the engine oil of the embodiments of the present invention is superior to the respective proportions. Among them, the low-speed pre-ignition suppressing ability of the engine oil of example 4 is significantly better than that of example 5, example 6, example 7, comparative example 2, comparative example 3, comparative example 4, comparative example 5 and comparative example 6.
Although the invention has been described in detail hereinabove with respect to a general description and specific embodiments thereof, it will be apparent to those skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims (10)

1. An engine oil additive is characterized by consisting of a binary molybdenum friction reducer and an antioxidant; the binary molybdenum friction reducer is Adeka Sakura LububeTMS525 and/or POUPC1002, wherein the antioxidant is an amine antioxidant BASF L67.
2. The engine oil additive of claim 1, comprising, by weight, 50 to 90 parts of the binary molybdenum friction reducer and 10 to 50 parts of the antioxidant.
3. The engine oil additive according to claim 1 or 2, wherein the mass ratio of the binary molybdenum friction reducer to the antioxidant is (1-9): 1.
4. the engine oil additive according to claim 3, wherein the binary molybdenum friction reducer and the antioxidant are in a mass ratio of (1-3): 1.
5. the engine oil additive according to any one of claims 1 to 4, characterized by consisting of the following components in parts by weight: adeka Sakura LububeTMS525 or POUPC 100250-90 parts, BASF L6710-50 parts.
6. The engine oil additive of claim 5, consisting of, in parts by weight: adeka Sakura LububeTMS525 or POUPC100270-72 parts, BASF L6728-30 parts.
7. A method for preparing the engine oil additive of any one of claims 1 to 6, wherein the binary molybdenum friction reducer and the antioxidant are mixed uniformly at a temperature of 60 to 65 ℃.
8. Use of the engine oil additive of any one of claims 1 to 6 or the method of claim 7 in the preparation of an engine oil.
9. An engine oil characterized by containing the engine oil additive according to any one of claims 1 to 6.
10. The engine oil of claim 9, wherein the engine oil additive is present in an amount of 0.7 to 2% by weight, preferably 1 to 2% by weight.
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JP2016056221A (en) * 2014-09-05 2016-04-21 株式会社Adeka Method for raising self-ignition point of engine oil of direct injection engine with supercharger, and self-ignition point-raising agent for engine oil of the engine
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US20190292473A1 (en) * 2018-03-23 2019-09-26 Chevron Oronite Company Llc Composition and method for preventing or reducing low speed pre-ignition in spark-ignited internal combustion engines
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
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