Lubricating oil having good oxidation resistance and specially used for dual-fuel engines

A dual-fuel engine, anti-oxidation technology, applied in the field of lubricating oil, can solve problems such as affecting engine power, engine ignition spark plug pollution, large lubricating oil evaporation loss, etc. The effect of oxidative power

Inactive Publication Date: 2015-04-22
CHONGQING JIAZHOU LUBRICATING OIL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The dual-fuel engine uses natural gas or liquefied petroleum gas as fuel, which has a high calorific value, and the exhaust temperature is as high as 480°C, which is 180°C-200°C higher than the temperature of ordinary internal combustion engine oil. The high combustion temperature of the engine leads to the evaporation loss of lubricating oil If the NOx content is too high, the internal combustion engine oil can easily oxidize or nitrate NOx, increase sludge and carbon deposits, thereby accelerating engine wear and lubricating oil deterioration and aging; moreover, compressed natural gas or liq

Method used

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  • Lubricating oil having good oxidation resistance and specially used for dual-fuel engines
  • Lubricating oil having good oxidation resistance and specially used for dual-fuel engines
  • Lubricating oil having good oxidation resistance and specially used for dual-fuel engines

Examples

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Example Embodiment

[0014] Example 1: A special lubricating oil for dual-fuel engines with good oxidation resistance, including 50 parts of base oil, 1.5 parts of nonylphenol polyoxyethylene ether, 1 part of polyvinyl ether, 11 parts of poly-α-olefin, and high base number synthesis 10 parts of calcium sulfonate, 1 part of calcium alkylbenzene sulfonate, 1 part of thion butyl octyl zinc salt, 2 parts of salicylate with a base value greater than 300 mgKOH / g, 4 parts of trilinoleic acid glyceride, trimethyldecane 1 part, 3 parts of calcium sulfide alkylphenol, 1 part of calcium alkylbenzene sulfonate, 5 parts of acetophenone, 10 parts of glycerin, 6 parts of disodium ethylenediaminetetraacetic acid, 4 parts of modified polysiloxane, 0.7 parts of compound antioxidant (composite antioxidant is composed of 0.5 part of alkylated diphenylamine antioxidant and 0.2 part of thiophenol ester type antioxidant), metal reducing agent containing benzotriazole or thiadiazole 1 part of active agent.

Example Embodiment

[0015] Example 2: A special lubricating oil for dual-fuel engines with good oxidation resistance, including 55 parts of base oil, 2 parts of nonylphenol polyoxyethylene ether, 3 parts of polyvinyl ether, 15 parts of poly-α-olefin, and high base value synthesis 12 parts of calcium sulfonate, 1.5 parts of calcium alkylbenzene sulfonate, 1.5 parts of thion butyl octyl zinc salt, 3 parts of salicylate with base value greater than 300mgKOH / g, 6 parts of trilinoleic acid glyceride, trimethyldecane 3 parts, 5 parts of calcium sulfide alkylphenol, 4 parts of calcium alkylbenzene sulfonate, 6 parts of acetophenone, 12 parts of glycerin, 8 parts of disodium edetate, 5 parts of modified polysiloxane, compound Antioxidant 1 part (composite antioxidant consists of 0.5 part of alkylated diphenylamine antioxidant and 0.5 part of thiophenol ester type antioxidant), metal deactivation containing benzotriazole or thiadiazole Agent 2 parts.

Example Embodiment

[0016] Example 3: A special lubricating oil for dual-fuel engines with good oxidation resistance, including 58 parts of base oil, 3 parts of nonylphenol polyoxyethylene ether, 5 parts of polyvinyl ether, 17 parts of poly-α-olefin, and high base value synthesis 18 parts of calcium sulfonate, 2 parts of calcium alkylbenzene sulfonate, 2 parts of thion butyl octyl zinc salt, 4 parts of salicylate with base value greater than 300mgKOH / g, 7 parts of trilinoleic acid glyceride, trimethyldecane 4 parts, 7 parts of calcium sulfide alkylphenol, 5 parts of calcium alkylbenzene sulfonate, 8 parts of acetophenone, 14 parts of glycerin, 9 parts of disodium edetate, 5 parts of modified polysiloxane, compound Antioxidant 2 parts (composite antioxidant consists of 1 part of alkylated diphenylamine antioxidant and 1 part of thiophenol ester type antioxidant), metal deactivation containing benzotriazole or thiadiazole Agent 2.5 parts.

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Abstract

The invention relates to a lubricating oil having good oxidation resistance and specially used for dual-fuel engines. The lubricating oil comprises, by mass, 50-63 parts of base oil, 1.5-3.8 parts of nonylphenol polyoxyethylene ether, 1-7 parts of polyvinyl ether, 11-18 parts of poly-alpha-olefin, 10-20 parts of overbased synthetic calcium sulfonate, 1-3 parts of calcium alkylbenzene sulfonate, 1-3 parts of zinc butyl octyl dithiophosphate, 2-5 parts of salicylate, 4-8 parts of trilinolein, 1-5 parts of trimethyl decane, 3-8 parts of sulfurized calcium alkyl phenolate, 1-6 parts of calcium alkylbenzene sulfonate, 5-9 parts of acetophenone, 10-16 parts of glycerol, 6-10 parts of disodium ethylene diamine tetraacetate, 4-6 parts of modified polysiloxane, 0.7-2.5 parts of a composite antioxidant, and 1-3 parts of a metal deactivator. The lubricating oil has excellent oxidation and abrasion resistance.

Description

technical field [0001] The invention relates to a lubricating oil, in particular to a special lubricating oil for a dual-fuel engine with good oxidation resistance. Background technique [0002] The dual-fuel engine uses natural gas or liquefied petroleum gas as fuel, which has a high calorific value, and the exhaust temperature is as high as 480°C, which is 180°C-200°C higher than the temperature of ordinary internal combustion engine oil. The high combustion temperature of the engine leads to the evaporation loss of lubricating oil If the NOx content is too high, the internal combustion engine oil can easily oxidize or nitrate NOx, increase sludge and carbon deposits, thereby accelerating engine wear and lubricating oil deterioration and aging; moreover, compressed natural gas or liquefied petroleum gas itself has no lubricating effect, so , it is required that the ash content of the internal combustion engine oil should be moderate, so that the ash deposited on the valve ...

Claims

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Application Information

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IPC IPC(8): C10M161/00C10M141/08C10N30/06C10N30/10C10N40/25
Inventor 唐仕川宋世远张龙
Owner CHONGQING JIAZHOU LUBRICATING OIL
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