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A kind of stationary gas engine oil composition

A gas engine and oil composition technology, which is applied in lubricating compositions, petroleum industry, additives, etc., can solve the problems that the clean and dispersible properties of oil products cannot meet the requirements, and the viscosity stability of oil products cannot be guaranteed, so as to maintain clean and dispersible properties , strong operability and obvious technical effect

Active Publication Date: 2018-11-09
CHINA PETROLEUM & CHEM CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the technical scheme of lubricating oil for stationary gas engines disclosed in the prior art, ethylene propylene copolymer type viscosity index agent is added to increase the viscosity of the oil, but after actual investigation, the clean and dispersible performance of the oil is difficult to meet the requirements
[0004] In the technical solution of lubricating oil for stationary gas engines disclosed in the prior art, no viscosity index agent is added, so that the viscosity stability of the oil cannot be guaranteed, and the above technical problems still cannot be solved
[0005] In the prior art, no organic molybdenum salt is used as an anti-wear agent to be added to the stationary gas engine oil, and the anti-wear performance is improved

Method used

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  • A kind of stationary gas engine oil composition
  • A kind of stationary gas engine oil composition
  • A kind of stationary gas engine oil composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] The composition preparation scheme is shown in Table 1.

[0046] Table 1 Examples of Lubricating Oil Compositions

[0047]

[0048] Table 2 compound agent components

[0049]

[0050] Note ①: The structure of non-phosphorus molybdenum salt friction reducer is shown in the following formula:

[0051]

[0052] R is pentyl.

[0053] Note ②: The structure of non-phosphorus molybdenum salt friction reducer is shown in the following formula:

[0054]

[0055] R is heptyl.

[0056] Table 2 Lubricating Oil Composition Example Viscosity Test Comparison

[0057]

[0058] As can be seen from Table 2, the order of viscosity from large to small is Comparative Example 3>Example 2>Comparative Example 2>Example 1>Comparative Example 1, and the viscosity of Example 1 and Example 2 are all due to the addition of polyisobutylene. promoted.

[0059] Table 3 Lubricating Oil Composition Example Viscosity Index Test Comparison

[0060]

[0061] It can be...

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Abstract

The present invention discloses a stationary gas engine oil composition, which comprises, by mass, 3-10% of polyisobutylene, 6-16% of a compounding agent, 0.1-0.3% of a pour point depressant, and the balance of deep refining base oil, wherein the compounding agent at least comprises one or a plurality of cleaning agents, one or a plurality of dispersants, one or a plurality of antioxidants, an organic molybdenum salt wear-resistant agent, and an anti-foaming agent. According to the present invention, the polyisobutylene, the compounding agent, the pour point depressant and the base oil are used to blend into the stationary gas engine lubricating oil according to the specific ratio, the addition amount is reasonable, and the ratio selection is proper, such that the technical difficult problems that the gas engine high-temperature lubricating oil easily produce high temperature oxidation and nitration, the gas fuel provides the poor lubricating effect for the valve seat so as to easily produce wear, and the like are solved.

Description

technical field [0001] The invention relates to a lubricating oil composition, in particular to a lubricating oil composition for a stationary gas engine containing polyisobutene, which has good clean dispersibility, antiwear performance, high temperature oxidation resistance and nitrification resistance. Background technique [0002] As the key equipment of the enterprise, the stationary gas engine operates at high load for a long time throughout the day. At the same time, the calorific value and acid content of different gas source components are different. Therefore, lubricating oils for stationary gas engines are required to have good detergency and dispersion properties, anti-wear properties, anti-oxidation and anti-nitrification properties, and deposit control capabilities. [0003] In the technical scheme of lubricating oil for stationary gas engines disclosed in the prior art, an ethylene-propylene copolymer type viscosity index agent is added to increase the viscosi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/04C10M143/06C10M139/00C10N40/25C10N30/02C10N30/04C10N30/06
Inventor 朱和菊赵佳洋黄海鹏孟雪梅张星宇
Owner CHINA PETROLEUM & CHEM CORP
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