Bacteriostatic diesel oil lubricity improver and preparation method thereof

An improver and lubricity technology, which is applied in the field of bacteriostatic diesel lubricity improver and its preparation, can solve the problems of bacteria breeding in diesel oil, wear of fuel injectors, engine failure, etc., so as to reduce internal binding effect and improve lubricity. , to avoid the effect of corrosion

Active Publication Date: 2020-06-30
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And feces from bacteria can clog filters, causing starvation; worse, wear injectors and cause engine failure
The existing technology usually relies on adding a fuel cleaning system to avoid the problem of diesel bacteria breeding, which increases the cost

Method used

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  • Bacteriostatic diesel oil lubricity improver and preparation method thereof
  • Bacteriostatic diesel oil lubricity improver and preparation method thereof
  • Bacteriostatic diesel oil lubricity improver and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0031] Preparation of tung oil methyl ester: Add 800g tung oil, 160g methanol, and 8g potassium hydroxide into a 2L high-pressure reactor, and carry out stirring reaction. The reaction temperature is 60°C, and the reaction time is 20min. Glycerin product 76.2g, then the upper layer product was washed 3 times with 50°C hot water, and the washed product was distilled at 2000Pa and 60°C for 2h to obtain tung oil methyl ester biodiesel.

[0032] Put 143g of 2-butenedialdehyde and 0.25g of hydroquinone into the reaction kettle, start stirring, and raise the temperature to 165°C for mixing. Gradually add 500 g of tung oil methyl ester biodiesel dropwise to the reaction kettle, so that the dropwise addition of tung oil methyl ester biodiesel is completed within 2 hours, and the rate of addition is basically uniform. Distillation under reduced pressure at ℃ for 2h to obtain the improver product. After calculation, the conversion rate of reaction molecules (conversion rate of carbon-c...

Embodiment 2

[0034] Put 72g of 2-butenedialdehyde and 0.15g of hydroquinone into the reaction kettle, start stirring, and raise the temperature to 150°C for mixing. Gradually add 500 g of tung oil methyl ester biodiesel dropwise to the reaction kettle, so that the addition of tung oil methyl ester biodiesel is completed within 2 hours, and the rate of addition is basically uniform. Distillation under reduced pressure at ℃ for 2h to obtain the improver product. The reaction molecular conversion rate was 84.95%, the acid value of the product was 1.4mgKOH / g, the freezing point was -26.9°C, and the water layer was not turbid in the demulsification test.

Embodiment 3

[0036] Put 432g of 2-butenedialdehyde and 0.5g of hydroquinone into the reaction kettle, start stirring, and raise the temperature to 180°C for mixing. Gradually add 500 g of tung oil methyl ester biodiesel dropwise to the reaction kettle, so that the addition of tung oil methyl ester biodiesel is completed within 2 hours, and the rate of addition is basically uniform. Distillation under reduced pressure at ℃ for 2h to obtain the improver product. The reaction molecular conversion rate is 86.07%, the acid value of the product is 1.2mgKOH / g, the freezing point is -27.5°C, and the water layer is not turbid in the demulsification test.

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Abstract

The invention relates to a bacteriostatic diesel oil lubricity improver and a preparation method thereof. The preparation method comprises the following steps: mixing unsaturated dialdehyde and a polymerization inhibitor at 150-180 DEG C, gradually adding tung oil biodiesel, continuously reacting at 200-240 DEG C for a certain period of time after adding, and carrying out reduced pressure distillation to obtain an improver product. The lubricity improver disclosed by the invention is prepared by adopting the method disclosed by the invention. The improver prepared by the invention has the characteristics of good lubricity, good antibacterial activity, low condensation point and the like, and can avoid the problems of breeding bacteria and blocking a filter due to long-term storage of diesel oil while improving the lubricity.

Description

technical field [0001] The invention belongs to the technical field of biodiesel, and in particular relates to a bacteriostatic diesel lubricity improver and a preparation method thereof. Background technique [0002] With the widespread use of diesel engines, the consumption of diesel is increasing year by year. However, a large amount of diesel consumption will inevitably lead to further aggravation of vehicle emissions of harmful substances. Due to the serious impact of emissions on the ecological environment, human health and economic development, governments of various countries have successively formulated strict emission regulations to limit the harmful emissions of diesel vehicles. With the implementation of the National V standard for diesel in my country, the sulfur content of diesel will drop below 10ppm, and desulfurized diesel has been implemented in domestic refineries. At present, sulfur reduction technologies such as hydrotreating and hydrocracking are adop...

Claims

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Application Information

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IPC IPC(8): C10L1/18C10L1/185C10L1/04C10L10/08C10L10/14C10L10/04
CPCC10L1/04C10L1/18C10L1/1802C10L1/1857C10L10/04C10L10/08C10L10/14C10L2230/083C10L2270/026
Inventor 王宜迪李澜鹏曹长海程瑾李秀峥
Owner CHINA PETROLEUM & CHEM CORP
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