Additive composition for lubricant oil and its application

A technology of lubricating oil additives and compositions, applied in the direction of lubricating compositions, additives, petroleum industry, etc., can solve problems such as inapplicability, and achieve the effect of strong neutralization

Inactive Publication Date: 2005-04-20
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, ordinary engine oils are not suitable for use in engines with this type of fuel

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: Lubricating oil additive composition T-1

[0019] In a heat-resistant container, add 8g Maoming 150SN base oil, 2g sodium sulfonate, 10g sulfurized calcium phenate calcium, 12g calcium sulfonate, 16g dialkyl zinc dithiophosphate T202. 10g polyisobutenyl monobutyl Diimide T151A, 15g of polyisobutenyl bis-succinimide T152, heated to 60-70°C while stirring, and kept for about 20 minutes to make the material uniform and obtain a viscous liquid.

Embodiment 2

[0020] Embodiment 2: Lubricating oil additive composition T-2

[0021] In a heat-resistant container, add 6g Dalian 150SN base oil, 6g sodium sulfonate, 2g magnesium sulfonate, 8g sulfurized alkylphenate calcium, 5g calcium sulfonate, 16g T202, 25g T151A, and heat to 60 while stirring ~70°C, maintain for about 20 minutes to make the material uniform and obtain a viscous liquid.

Embodiment 4

[0025] Prepare a lubricating oil composition A-1 of the present invention with a viscosity grade of 15W / 40 of a full component, the base oil used is Daqing paraffinic base oil, add additive composition T-1, viscosity index improver, pour point depressant, its The deployment plan is as follows.

[0026] component name

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PUM

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Abstract

A lubricating oil additive composition, based on the total weight of additives, comprising: (I) 1-30% metal detergent containing sodium; (II) 3-50% metal detergent containing calcium or magnesium; (III) 3-70% ashless dispersant; (VI) 3-50% antioxidant and anti-corrosion agent; (V) 0-20% diluent oil. The lubricating oil additive composition provided by the present invention contains the sodium salt of the specific effect component, which has a stronger neutralizing effect on the acidic substances produced during the combustion of ethanol fuel, and is therefore particularly suitable for use in automobile engines that use a mixture of gasoline and ethanol as fuel. .

Description

technical field [0001] The invention belongs to lubricants, in particular to lubricating oil additive compositions and applications thereof. technical background [0002] Automobile engines use ethanol-containing fuels, which can reduce exhaust emissions, meet environmental protection requirements, and save oil resources at the same time. Experiments have found that mixing ethanol with gasoline as fuel for cars can cause problems such as increased corrosion, pre-ignition and increased engine deposits. Therefore, ordinary engine oils are not suitable for use in engines with this type of fuel. For example, European Patent EP0411539 is only directed to gasoline engines with spark plug ignition. Chinese patents CN1138622A and CN1138623A are only aimed at the engine lubrication of gasoline as fuel. The lubricating oil composition provided by the invention considers the characteristics of ethanol fuel and proposes a new formula. Contents of the invention [0003] The object ...

Claims

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Application Information

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IPC IPC(8): C10M149/02
Inventor李洪燕武志强王立华李洪军
OwnerCHINA PETROLEUM & CHEM CORP