CN103571565B

CN103571565B - Castor-oil-based ethanol fuel engine oil composition

Info

Publication number: CN103571565B
Application number: CN201310559994.6A
Authority: CN
Inventors: 李胜; 黄福川; 肖友程; 蓝明新; 梁慧; 唐彩珍; 粟满荣; 唐兴中; 廖丹葵; 刘琨; 黄旖瑶; 经建芳
Original assignee: Guangxi University
Current assignee: Guangxi University
Priority date: 2013-11-12
Filing date: 2013-11-12
Publication date: 2015-04-29
Anticipated expiration: 2033-11-12
Also published as: CN103571565A

Abstract

The invention discloses a castor-oil-based ethanol fuel engine oil composition. Dioctyl sebacate and pentaerythritol ester, which are prepared from castor oil, are compounded into base oil, and a plurality of composite additives comprising a detergent, an antioxidant preservative, a dispersing agent, an antioxidant, an oiliness agent, an antirust agent, an antifoaming agent and a reinforcing agent are matched. According to the castor-oil-based ethanol fuel engine oil composition, a dense protective film is formed on the surface of a kinematic pair of an engine, so that the friction and abrasion of the kinematic pair of the engine can be effectively reduced, and the erosion of an ethanol fuel can be resisted; the composition has high low-temperature flowability, high-temperature oxidation resistance, acid neutralizing capability, detergency and dispersity, and the formation of oil sludge and carbon deposit is reduced; the composition has low volatility and emission performance and high antirust and anticorrosive performance, the power of the engine can be maintained, and the lubricating requirements of an ethanol fuel engine system can be met.

Description

Castor-oil plant base ethanol fuel engine oil compositions

Technical field

The invention belongs to explosive motor lubricant, especially castor-oil plant base ethanol fuel engine oil compositions field.

Background technology

Since 21 century, the diversification of the energy and vehicle fuel, renewable energy source and the clean alternative fuel such as exploitation and applied material energy are the inexorable trends solving mineral products short bunker, the protection of the environment that purifies air.Ethanol is common fuel oil energy substitute products, and it belongs to oxidizing combustible, with the similar density of gasoline.These two kinds of fuel can directly mix dissolve each other (gasohol), directly apply on petrol motor, without the need to changing the structure of engine, and can keep the performance of original engine.Therefore, the utilisation technology of alcohol fuel on petrol motor is own through quite ripe, and progressively to straight alcohol engine future development.

The gasification latent heat of ethanol is very large, can absorb a large amount of heat, cause temperature cylinder to reduce when gasifying in cylinder.When motor speed is lower than 1100r/min, when namely engine is in idling operation, under the situation that temperature cylinder is too low, be easy to cause flame-out of engine.In order to avoid the generation of this situation, engine structure must be adjusted.Due to the uniqueness of ethanol fuel engine, in lubricating oil selection, slightly should distinguish with fuel combustion type engine oil.Its main manifestations is that ethanol and the impact of products of combustion on regular gasoline machine oil coking amount thereof are larger; The high and low temperature dispersion coefficient of gasoline engine oil can be caused to reduce simultaneously; In addition alcohol fuel causes lubricating oil easy coking, and lubricating oil oil film is easily destroyed by ethanol in addition, causes cylinder wall, piston ring is very easily worn.

Make full use of the physical resources of China's abundant, take Viscotrol C as raw material, new generation environmental protection energy-saving engine oil ingredient, not only can meet the use of ethanol fuel engine, reduce engine scuffing to greatest extent, increasing service life of engine, and the pressure that can slow down energy scarcity, significant to social sustainable development.

Summary of the invention

The technical problem to be solved in the present invention is to provide a kind of protective membrane, effectively reduction forming densification and rubs and reduce wear, there are good low-temperature fluidity, oxidation-resistance and outstanding detergent-dispersant performance, prevent oil product from generating greasy filth or carbon deposit, extend the work-ing life of engine; The castor-oil plant base ethanol fuel engine oil compositions that volatility is lower, antirust, anti-corrosive performance is good.

The present invention solves the problems of the technologies described above by following technical scheme: adopt oil based on dioctyl sebacate and pentaerythritol ester compound, coordinate multiple composite additive, its each constituent mass percentage ratio is:

Component

Content (mass percent)

Base oil	Surplus
		Purification agent	6.0%～8.0%
Antioxidant preservative	0.5%～1.0%
		Dispersion agent	3.0%～5.0%
Oxidation inhibitor	0.5%～1.0%
		Oiliness improver	0.3%～0.5%
Rust-preventive agent	0.3%～0.5%
		Kilfoam	0.001%～0.005%
Stiffeners	0.3%～0.5%

Base oil is the dioctyl sebacate produced of the Viscotrol C of mass ratio 40% ~ 60% and 60% ~ 40% pentaerythritol ester compound.

Purification agent is the high alkaline calcium sulfonate of mass ratio 40% ~ 60% and the calcium sulfenyl phenolate compound of 60% ~ 40%.

Antioxidant preservative is the two octyl group basic zinc salt of sulphur phosphorus.

Dispersion agent is diene base succimide.

Oxidation inhibitor be mass ratio 40% ~ 60% 2,6-ditertbutylparacresol and 60% ~ 40% dialkyl diphenylamine compound.

Oiliness improver is 124 Triazole lipid acid amine salt compound.

Rust-preventive agent is mass ratio 40% ~ 60% barium mahogany sulfonate and 60% ~ 40%N-oleoyl sarcosine stearylamine type compound.

Kilfoam is dimethyl silicone oil.

Stiffeners is dialkyl disulfides carboxylamine tungsten.

Castor-oil plant base ethanol fuel engine oil compositions of the present invention, forms the protective membrane of one deck densification in engine movements parts pair, effectively can reduce the friction of engine movements pair and reduce wear; There is good low-temperature fluidity, anti-oxidant and outstanding detergent-dispersant performance, can prevent oil product from generating greasy filth or carbon deposit, extend the work-ing life of engine; Have lower volatility, antirust, anti-corrosive performance is good, can maintain engine power, meet the lubrication needs of ethanol fuel engine system.

Embodiment

Embodiment 1:

Following component is in harmonious proportion by mass percentage and forms:

Component	Mass percentage content
		Mass ratio 40% dioctyl sebacate and 60% pentaerythritol ester	83.6%
Mass ratio 40% high alkaline calcium sulfonate and 60% calcium sulfenyl phenolate	8.0%

The two octyl group basic zinc salt of sulphur phosphorus	1.0%
		Diene base succimide	5.0%
Mass ratio 40%2,6-ditertbutylparacresol and 60% dialkyl diphenylamine	1.0%
		124 Triazole lipid acid amine salt	0.45%
Mass ratio 40% barium mahogany sulfonate and 60%N-oleoyl sarcosine stearylamine type	0.495%
		Dimethyl silicone oil	0.005%
Dialkyl disulfides carboxylamine tungsten	0.45%

Above component summation is 100%.

Embodiment 2:

Following component is in harmonious proportion by mass percentage and forms:

Component	Mass percentage content
		Mass ratio 55% dioctyl sebacate and 45% pentaerythritol ester	89%
The high alkaline calcium sulfonate of mass ratio 55% and the calcium sulfenyl phenolate of 45%	6.0%
		The two octyl group basic zinc salt of sulphur phosphorus	0.5%
Diene base succimide	3.0%
		Mass ratio 55%2,6-ditertbutylparacresol and 45% dialkyl diphenylamine	0.5%
124 Triazole lipid acid amine salt	0.3%
		Mass ratio 55% barium mahogany sulfonate and 45%N-oleoyl sarcosine stearylamine type	0.359%
Dimethyl silicone oil	0.001%
		Dialkyl disulfides carboxylamine tungsten	0.34%

Above component summation is 100%.

Embodiment 3:

Following component is in harmonious proportion by mass percentage and forms:

Component	Mass percentage content
		Mass ratio 50% dioctyl sebacate and 50% pentaerythritol ester	86.2%
The high alkaline calcium sulfonate of mass ratio 50% and the calcium sulfenyl phenolate of 50%	7.0%
		The two octyl group basic zinc salt of sulphur phosphorus	0.8%
Diene base succimide	4.0%

Mass ratio 50%2,6-ditertbutylparacresol and 50% dialkyl diphenylamine	0.8%
		124 Triazole lipid acid amine salt	0.4%
Mass ratio 50% barium mahogany sulfonate and 50%N-oleoyl sarcosine stearylamine type	0.397%
		Dimethyl silicone oil	0.003%
Dialkyl disulfides carboxylamine tungsten	0.4%

Above component summation is 100%.

The typical physical and chemical index of embodiment 3 product:

Claims

1. a castor-oil plant base ethanol fuel engine oil compositions, it is characterized in that oil based on the dioctyl sebacate that employing Viscotrol C is produced and pentaerythritol ester compound, coordinate multiple composite additive, its each constituent mass percentage ratio is:

Component Mass percentage content Base oil Surplus Purification agent 6.0％～8.0％ Antioxidant preservative 0.5％～1.0％ Dispersion agent 3.0％～5.0％ Oxidation inhibitor 0.5％～1.0％ Oiliness improver 0.3％～0.5％ Rust-preventive agent 0.3％～0.5％ Kilfoam 0.001％～0.005％ Stiffeners 0.3％～0.5％

Wherein:

Base oil is the dioctyl sebacate produced of mass ratio 40% ~ 60% Viscotrol C and 60% ~ 40% pentaerythritol ester compound;

Purification agent is the high alkaline calcium sulfonate of mass ratio 40% ~ 60% and the calcium sulfenyl phenolate compound of 60% ~ 40%;

Antioxidant preservative is the two octyl group basic zinc salt of sulphur phosphorus;

Dispersion agent is diene base succimide;

Oxidation inhibitor be mass ratio 40% ~ 60% 2,6-ditertbutylparacresol and 60% ~ 40% dialkyl diphenylamine compound;

Oiliness improver is 124 Triazole lipid acid amine salt compound;

Rust-preventive agent is mass ratio 40% ~ 60% barium mahogany sulfonate and 60% ~ 40%N-oleoyl sarcosine stearylamine type compound;

Kilfoam is dimethyl silicone oil;

Stiffeners is dialkyl disulfides carboxylamine tungsten.