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Heavy-loading CNG natural gas engine oil complexing agent and preparation method and application thereof

An engine oil and natural gas technology, applied in additives, petroleum industry, lubricating compositions, etc., can solve problems such as environmental protection and energy saving requirements not meeting strict requirements, engine valves and valve seats being easily worn, and filters being easily blocked by sludge. , to achieve the effects of excellent high temperature detergency and low temperature dispersion performance, engine protection, and excellent acid neutralization ability

Inactive Publication Date: 2018-05-11
锦州新兴石油添加剂有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the widespread use of gas engines, the requirements for gas engine oil are different from those for gasoline and diesel engines, especially for heavy-duty, high-power gas engines, which usually operate under high temperature and high load conditions. The requirements of gas engine oil are unique: Oxidation and nitrification control: After the mixture of oxygen and nitrogen in the combustion air, the high temperature generated by the engine aggravates the nitrogen oxides (NO 2 ) generation, while NO 2 The compound reacts with oil and additives to produce a polymerization reaction, which leads to an increase in the viscosity of the oil, acidic substances will cause corrosive wear, the engine will produce sludge and paint film deposition, and the filter is easily blocked by sludge, which will cause a series of problems : Engine valves and valve seats are prone to wear
[0003] Before 2000, due to the limitations of the development of the automobile industry and the additive industry in China, the requirements for environmental protection and energy saving did not reach a strict level

Method used

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  • Heavy-loading CNG natural gas engine oil complexing agent and preparation method and application thereof
  • Heavy-loading CNG natural gas engine oil complexing agent and preparation method and application thereof
  • Heavy-loading CNG natural gas engine oil complexing agent and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Weigh raw materials:

[0039] Phosphobioctyl basic zinc salt 8kg;

[0040] Synthetic calcium sulfonate with ultra-alkaline value 14kg;

[0041] Alkylated diphenylamine 4.5kg;

[0042] Thioaminoester 9kg;

[0043] 3kg of synthetic magnesium sulfonate with ultra-alkaline value;

[0044] High molecular weight ashless dispersant 48kg;

[0045] Monoalkenyl succinimide 18kg.

[0046] The Zn content of the phosphobisoctyl basic zinc salt is 8.0-10.5%, the P content is 6.5-8.8%, and the S content is 12-18%. The calcium content of the super-basic value synthetic calcium sulfonate is ≥ 14m%, and the total base value is ≥ 395 mgKOH / g. The Mg content of the ultra-basic value synthetic magnesium sulfonate is ≥8.5%, and the total base value is ≥395mgKOH / g. The polymer ashless dispersant is high molecular weight polyisobutenyl succinimide, and the N content of the polymer ashless dispersant is 1.0-1.1%.

[0047] The raw materials are added into the blending kettle according to...

Embodiment 2

[0049] Weigh raw materials:

[0050] Phosphobioctyl basic zinc salt 10.5kg;

[0051] 11kg of synthetic calcium sulfonate with ultra-alkaline value;

[0052] Alkylated diphenylamine 6.5kg;

[0053] Thioaminoester 7kg;

[0054] 5.5kg of synthetic magnesium sulfonate with ultra-alkaline value;

[0055] High molecular weight ashless dispersant 43kg;

[0056] Monoalkenyl succinimide 22.5kg.

[0057] The Zn content of the phosphobisoctyl basic zinc salt is 8.0-10.5%, the P content is 6.5-8.8%, and the S content is 12-18%. The calcium content of the super-basic value synthetic calcium sulfonate is ≥ 14m%, and the total base value is ≥ 395 mgKOH / g. The Mg content of the ultra-basic value synthetic magnesium sulfonate is ≥8.5%, and the total base value is ≥395mgKOH / g. The polymer ashless dispersant is high molecular weight polyisobutenyl succinimide, and the N content of the polymer ashless dispersant is 1.0-1.1%.

[0058] The raw materials are added into the blending kettle ac...

Embodiment 3

[0060] Weigh raw materials:

[0061]Phosphobioctyl basic zinc salt 9kg;

[0062] Synthetic calcium sulfonate with ultra-alkaline value 12kg;

[0063] Alkylated diphenylamine 5kg;

[0064] Thioaminoester 8kg;

[0065] Ultra-alkaline synthetic magnesium sulfonate 4kg;

[0066] High molecular weight boronated ashless dispersant 45kg;

[0067] Monoalkenyl succinimide 20kg.

[0068] The raw materials are added into the blending kettle according to the weight ratio, the temperature is raised to 65° C., stirred for 2.5 hours under normal pressure, and filtered to obtain the heavy-duty CNG natural gas engine oil compounding agent.

[0069] The natural gas engine oil composite agent of table 1 embodiment 3, its quality index is as table 1:

[0070] Table 1

[0071]

[0072]

[0073] The heavy-duty CNG natural gas engine oil compounding agent deployment oil product of embodiment 3 of the present invention:

[0074] Oil quality grade and viscosity grade: API CNG SAE 15W / 40 ...

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Abstract

The invention relates to a heavy-loading CNG natural gas engine oil complexing agent and a preparation method and application thereof. The raw materials of the complexing agent comprise base zinc saltof dioctyl thiophosphate, super-alkali-value synthesis calcium sulfonate, alkylated diphenylamine, amidogen thioester, super-alkali-value synthesis magnesium sulfonate, high-molecular-weight ashlessdispersing agent and single alkenyl succinimide. The method comprises the steps that the raw materials are weighed, added to a blending kettle, heated to 60-70 DEG C, stirred for 2-3 hours at normal pressure and filtered, and the heavy-loading CNG natural gas engine oil complexing agent is obtained. The heavy-loading CNG natural gas engine oil complexing agent and the preparation method and application thereof have the advantages that the preparation method is easy to operate and the agent is easy to prepare. The complexing agent can distinctly meet the requirements in the second, third and fourth type of oil and is suitable for meeting the performance requirement of large-sized fixed and large-power mobile CNG natural gas engines.

Description

technical field [0001] The invention relates to a heavy-duty CNG engine oil compounding agent, a preparation method and application thereof. Background technique [0002] With the widespread use of gas engines, the requirements for gas engine oil are different from those for gasoline and diesel engines, especially for heavy-duty, high-power gas engines, which usually operate under high temperature and high load conditions. The requirements of gas engine oil are unique: Oxidation and nitrification control: After the mixture of oxygen and nitrogen in the combustion air, the high temperature generated by the engine aggravates the nitrogen oxides (NO 2 ) generation, while NO 2 The compound reacts with oil and additives to produce a polymerization reaction, which leads to an increase in the viscosity of the oil, acidic substances will cause corrosive wear, the engine will produce sludge and paint film deposition, and the filter is easily blocked by sludge, which will cause a ser...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10M161/00C10N40/25C10N30/10C10N30/04C10N30/12
CPCC10M161/00C10M169/044C10M2203/1006C10M2203/1025C10M2215/064C10M2215/086C10M2217/06C10M2219/046C10M2219/06C10M2223/045C10N2030/04C10N2030/10C10N2030/12C10N2030/45C10N2040/25C10N2010/04
Inventor 王玉乾刘玉山
Owner 锦州新兴石油添加剂有限责任公司
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