Petrol detergent capable of remarkably reducing deposit of gasoline engine combustion chamber

A gasoline engine, gasoline detergent technology, applied in the direction of fuel additives, fuel, petroleum industry, etc., can solve the problems of rising gas temperature, increasing the mechanical interference of the piston top and cylinder head, increasing the engine compression ratio, etc., to achieve incremental Reduced effect

Active Publication Date: 2008-07-30
天津悦泰石化科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The obvious increase of the total deposits in the gasoline engine combustion chamber will increase the compression ratio of the engine, and it is not easy to dissipate heat, which will lead to an increase in the temperature of the gas after compression in the combustion chamber, an increase in the octane number requirement (ORI), and an increase in the top of the piston in severe cases. The mechanical interference between the cylinder head and the cylinder head produces "carbon knocking", which will eventually lead to increased fuel consumption and worsened emissions of the engine

Method used

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  • Petrol detergent capable of remarkably reducing deposit of gasoline engine combustion chamber
  • Petrol detergent capable of remarkably reducing deposit of gasoline engine combustion chamber
  • Petrol detergent capable of remarkably reducing deposit of gasoline engine combustion chamber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The high surface activity polyether amine used is SURFONAMINE from HUNTSMAN Company of the United States  B-100, the oil-soluble polyether carrier liquid is a copolymer of propylene oxide with a C / O above 3.5 and a weight-average molecular weight of 800-1200. It is a typical solvent aid, anti-oxidant, anti-rust, anti-corrosion, and demulsifier commercially available product.

[0027] The mass percent of each component is:

[0028] High Surface Active Polyetheramine 40%

[0029] Oil-soluble polyether carrier fluid 40%

[0030] Aromatic oil co-solvent 15%

[0031] T502 antioxidant 1.25%

[0032] T534 Antioxidant 1.25%

[0033] T747 rust inhibitor 1.4%

[0034] T551 preservative 0.6%

[0035] BAKERT Demulsifier 0.5%

[0036] Weigh the above required components in proportion, mix them at room temperature or not higher than 60°C, and stir evenly until transparent to obtain the gasoline detergent of the present invention. Add this detergent to the commercially availa...

Embodiment 2

[0038] Use the high surface activity polyether amine of embodiment 1 and oil-soluble polyether carrier liquid, repeat the preparation method of embodiment 1, the mass percent of each component of preparation gasoline detergent of the present invention is as follows:

[0039] High Surface Active Polyetheramine 45%

[0040] Oil-soluble polyether carrier fluid 45%

[0041] Aromatic oil co-solvent 5.0%

[0042] T502 antioxidant 1.25%

[0043] T534 Antioxidant 1.25%

[0044] T747 rust inhibitor 1.4%

[0045] T551 preservative 0.6%

[0046] BAKERT Demulsifier 0.5%

[0047] Add this gasoline detergent to commercially available 93# motor gasoline at a dose of 350-400ppm. After inspection by a professional inspection department, the physical and chemical analysis data of the oil fully meet the requirements of GB17930-2006. The reduction rate of simulated intake valve deposits reaches 93%. Using high-temperature (above 500°C) thermogravimetric analysis, the incremental change of s...

Embodiment 3

[0049] Use the high surface activity polyether amine of embodiment 1 and oil-soluble polyether carrier liquid, repeat the preparation method of embodiment 1, the mass percent of each component of preparation gasoline detergent of the present invention is as follows:

[0050] High surface active polyetheramine 47.5%

[0051] Oil-soluble polyether carrier fluid 47.5%

[0052] Aromatic oil co-solvent 0%

[0053] T502 antioxidant 1.25%

[0054] T534 Antioxidant 1.25%

[0055] T747 rust inhibitor 1.4%

[0056] T551 preservative 0.6%

[0057]BAKERT Demulsifier 0.5%

[0058] Add this gasoline detergent to commercially available 93# gasoline at a dose of 250-300PPM. After inspection by a professional inspection department, the physical and chemical data of the oil product all meet the requirements of GB17930-2006. The simulated intake valve deposits drop rate is 91%. Using high temperature (above 500°C) thermogravimetric analysis to simulate the incremental change of combustion ...

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Abstract

The invention relates to a gasoline detergent which can notably reduce deposited matters in the firebox of the gasoline motor. The detergent includes a high-surfactivity polyether amine, a kind of polyether carrier liquid with excellent oil solubility and functional agents of cosolvent, antioxidant, anti-rust agent, preservative and demulsifier thereof. The weigh percentages of the above components are that polyether amine is 40-50 percent; polyether carrier liquid is 40-50 percent; cosolvent and other functional agents are 5-20 percent. When 250-500ppm dosage of the detergent of the invention is added into the commercial car gasoline, not only the oil nozzle and the air inlet valve in the fuel gas inlet system of the motor of the car can be inhibited and cleaned, but also the deposited matters in the firebox of the gasoline motor can be obviously reduced. The increment of deposited matters of the car gasoline using the detergent of the invention in the firebox can be 70 percent above less than the increment of deposited matters of the car gasoline containing the detergent on the market in the firebox.

Description

technical field [0001] The invention relates to a gasoline detergent for vehicles and a preparation method thereof. The detergent uses polyetheramine with high surface activity and polyether with excellent oil solubility as main active ingredients. The invention also relates to the use of this detergent in motor gasoline. Background technique [0002] With the rapid development of the automobile industry, the number of automobiles in our country is increasing rapidly. As automobiles bring convenience to people's production and life, they also increase the consumption of petroleum resources and the emission of harmful exhaust substances. How to keep the car engine in a good working condition for a long time, so that the fuel gasoline can be fully burned, reduce fuel consumption and improve emissions. This must require the fuel intake system of the automobile engine to be kept clean for a long time. For this reason, gasoline detergent must be added in the used motor gasoli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/2387C10L10/04
Inventor 冯明星崔树民张新昌蔺文彪崔永胜
Owner 天津悦泰石化科技有限公司
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