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Petrol detergent capable of reducing deposit of gasoline engine combustion chamber

A gasoline detergent and gasoline engine technology, applied in fuel additives, fuel, petroleum industry, etc., can solve problems such as rising gas temperature, increasing mechanical interference between piston top and cylinder head, increasing engine compression ratio, etc.

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The high surface active polyisobutylene amine used is Kerocom PIBA from Basf, Germany. 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. Agents, rust inhibitors, preservatives, and demulsifiers are typical commercially available products.

[0026] The mass percent of each component is:

[0027] High surface active polyisobutylamine 24%

[0028] Oil-soluble polyether carrier fluid 36%

[0029] Aromatic oil co-solvent 37%

[0030] T502 antioxidant 0.75%

[0031] T534 Antioxidant 0.75%

[0032] T747 rust inhibitor 0.8 / %

[0033] T551 preservative 0.4%

[0034] SP-169 Demulsifier 0.3%

[0035] 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 commercially available In 93# gasoline, the physical and chemi...

Embodiment 2

[0037] Use the high surface activity polyisobutylene amine of embodiment 1 and oil-soluble polyether carrier liquid, repeat the preparation method of embodiment 1, prepare the gasoline detergent of the present invention each component mass percentage example is as follows:

[0038] High Surface Active Polyisobutylamine 18%

[0039] Oil-soluble polyether carrier fluid 36%

[0040] Aromatic oil co-solvent 43%

[0041] T502 antioxidant 0.75%

[0042] T534 Antioxidant 0.75%

[0043] T747 rust inhibitor 0.8%

[0044] T551 preservative 0.4%

[0045] Sp-169 Demulsifier 0.3%

[0046] Add this gasoline detergent to commercially available 93# motor gasoline at a dosage of 500-550ppm. 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 reached 87%. Using high-temperature (above 500°C) thermogravimetric analysis, the incremental ...

Embodiment 3

[0048] Use the high surface activity polyisobutylene amine of embodiment 1 and oil-soluble polyether carrier liquid, repeat the preparation method of embodiment 1, prepare the gasoline detergent of the present invention each component mass percentage example is as follows:

[0049] High surface active polyisobutylamine 20%

[0050] Oil-soluble polyether carrier fluid 40%

[0051] Aromatic oil co-solvent 38%

[0052] T502 antioxidant 0.5%

[0053] T534 Antioxidant 0.5%

[0054] T747 rust inhibitor 0.6%

[0055] T551 preservative 0.2%

[0056] Sp-169 Demulsifier 0.2%

[0057] Add this gasoline detergent to commercially available 93# gasoline at a dose of 550-600ppm. 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 83%. Using high temperature (above 500°C) thermogravimetric analysis, the simulated combustion chamber deposits in...

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Abstract

The invention relates to a gasoline detergent which can reduce deposited matters in the firebox of the gasoline motor. The detergent includes a high-surfactivity polyisobutene amine, a kind of polyether carrier liquid with excellent oil solubility, and cosolvent, antioxidant, anti-rust agent, preservative, and demulsifier thereof. The weigh percentages of the above components are that polyisobutene amine is 15-30 percent; polyether carrier liquid is 30-45 percent; and cosolvent and other functional agents are 30-50 percent. When 400-600ppm 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 50 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 is mainly composed of polyisobutylamine with high surface activity and polyether with excellent oil solubility. 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 gasoline. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/236C10L10/18C10L1/10
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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