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Natural gas and gasoline double-fuel engine lubricating oil composition

A kind of technology of dual fuel engine, lubricating oil composition

Inactive Publication Date: 2017-05-31
长春市新华石油化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, gasoline engine oil is often used as lubrication for natural gas and gasoline dual-fuel engines, and the lubrication performance index of gasoline engine oil cannot well meet the actual use requirements of dual-fuel taxis

Method used

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  • Natural gas and gasoline double-fuel engine lubricating oil composition
  • Natural gas and gasoline double-fuel engine lubricating oil composition
  • Natural gas and gasoline double-fuel engine lubricating oil composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Example 1 A natural gas and gasoline dual-fuel engine lubricating oil composition 20W / 50 (abbreviated as 20W / 50), consisting of the following raw materials in mass percentage: detergent: 1.0% synthetic calcium sulfonate with medium alkali value, alkyl salicyl Calcium acid 0.52%, sulfurized alkyl phenate calcium 0.4%; dispersant: polyisobutylene succinimide 2.28%, boronated polyisobutylene succinimide 2.52%; antiwear agent: zinc dialkyl dithiophosphate 0.58%, zinc dialkylthiocarbamate 0.42% and sulfurized isobutylene 0.5%; antioxidants: octyl / butyl diphenylamine 0.55%, phenolic ester type antioxidant 0.35%, thiadiazole derivatives 0.2%; Viscosity index improver: ethylene-propylene copolymer (OCP) 3%; pour point depressant: polyalphaolefin 0.8%; antifoaming agent: methyl silicone oil composite antifoaming agent 0.01%; base oil 250N 17% ﹑ 500N 52.87% and 150BS 17%.

[0032] The preparation method of 20W / 50 in Example 1 is as follows: According to the proportion, add base ...

Embodiment 2

[0053] Example 2 The composition of a natural gas and gasoline dual-fuel engine lubricating oil composition 10W / 40 (referred to as 10W / 40), the viscosity index improver mentioned in the composition: ethylene-propylene copolymer (OCP) is 6%; Base oil 250N is 27%, 500N is 8% and 150N is 48.87%, the rest is the same as 20W / 50;

[0054] The preparation method of 10W / 40 in Example 2 is as follows: according to the proportion, add the base oil into the reactor, heat up to 60°C-70°C, then add other materials, stir for 90-150 minutes, filter, test, and fill.

[0055] See Table 5 for the composition comparison between 10W / 40 in Example 2 and the existing gasoline engine oil SL10W / 40 gasoline engine oil.

[0056]

[0057] The technical parameters of 10W / 40 of embodiment 2 and existing gasoline engine oil SL 10W / 40 are listed in table 6. Implement the standard GB11121-2006.

[0058]

[0059] The data in Table 5 and Table 6 show that the difference between gasoline engine oil SL 1...

Embodiment 3

[0068] Example 3 Composition of a natural gas and gasoline dual-fuel engine lubricating oil composition 5W / 30 (abbreviated as 5W / 30): the viscosity index improver: ethylene-propylene copolymer (OCP) 2%, polymethacrylic acid Ester (PMA) 2%; base oil 100N 30.87% and 150N 55%, and the rest are the same as in Example 1.

[0069] The preparation method of 5W / 30 is as follows: According to the proportion, add the base oil into the reaction kettle, raise the temperature to 60°C-70°C, then add other materials, stir for 90-150 minutes, filter, test, and fill.

[0070] The composition comparison between 5W / 30 of Example 3 and the existing gasoline engine oil SL 5W / 30 is shown in Table 8.

[0071]

[0072] The technical parameters of the 5W / 30 of Example 3 and the existing gasoline engine oil SL 5W / 30 are listed in Table 9. Implement the standard GB 11121-2006.

[0073]

[0074] The data in Table 8 and Table 9 show that the difference between gasoline engine oil SL 5W / 30 and 5W / 3...

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Abstract

The invention provides a natural gas and gasoline double-fuel engine lubricating oil composition. The natural gas and gasoline double-fuel engine lubricating oil composition comprises 20W / 50, 10W / 40 and 5W / 30. The natural gas and gasoline double-fuel engine lubricating oil composition adopts a cleaning agent prepared from middle calcium alkylbenzensulfonate, alkyl calcium salicylate and sulfurized calcium alkyl phenolate; an antioxidant prepared from octyl / butyl diphenylamine with strong anti-oxidizing property and an phenolic-ester antioxidant; an abrasion-resistant agent prepared from zinc dialkyl dithiophosphate, zinc dialkyl dithiocarbamate and sulfurized isobutylene, so as to overcome the defects of overhigh ash content in gasoline engine oil, and insufficient anti-oxidizing property and anti-abrasion property. The natural gas and gasoline double-fuel engine lubricating oil composition has the advantages that compared with the gasoline engine oil, the anti-oxidizing property, friction property, anti-abrasion property, a maximum non-seizure load PB value, an ash value and low-temperature property are significantly better; the average oil replacing cycle is prolonged by 54.55%.

Description

technical field [0001] The invention relates to a lubricating oil, in particular to a natural gas and gasoline dual-fuel engine lubricating oil composition. Background technique [0002] Faced with global restrictions on vehicle exhaust emissions, increasing air pollution and the current state of world energy crisis, countries are devoting themselves to the development and application of clean energy. As a typical clean fuel, natural gas has the advantages of low cost, low emission, suppression of room temperature effect, and abundant resources. It can reduce dependence on oil and is also the main fuel for clean energy and vehicle fuel in the future. [0003] The operating temperature of the natural gas engine is higher than that of the gasoline engine, and the exhaust temperature reaches 165°C to 235°C. The high temperature condition promotes the oxidation of the engine oil, resulting in a rapid increase in the kinematic viscosity and acid value of the engine oil, which is ...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10N30/06C10N30/10C10N30/08C10N40/25
CPCC10M169/048C10M2205/02C10M2205/022C10M2205/024C10M2207/144C10M2209/084C10M2215/064C10M2215/086C10M2217/024C10M2219/022C10M2219/044C10M2219/068C10M2219/088C10M2219/106C10M2223/045C10M2229/00C10M2229/041C10N2030/06C10N2030/08C10N2030/10C10N2030/72C10N2040/25
Inventor 周维波王立华王树立徐薇
Owner 长春市新华石油化工有限公司
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