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Gasoline surfactant named as Yixiangjing and preparation method thereof

A gasoline and cyclodextrin technology, applied in the petroleum industry, liquid carbon-containing fuels, fuel additives, etc., can solve problems such as increased deposits and incomplete combustion

Active Publication Date: 2016-01-13
广州欣途汽车科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although polyisobutylene amine can solve the problem of fuel nozzle and intake valve deposits well, it has high stability under high temperature conditions, and incomplete combustion in the combustion chamber will lead to a significant increase in the deposits in the combustion chamber

Method used

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  • Gasoline surfactant named as Yixiangjing and preparation method thereof
  • Gasoline surfactant named as Yixiangjing and preparation method thereof
  • Gasoline surfactant named as Yixiangjing and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0045] The preparation method of cyclodextrin modified polyether amine is as follows:

[0046] (1) Preparation of polyether

[0047] Put it into the reaction kettle, replace it with nitrogen twice, and then vacuumize while raising the temperature. When the temperature rises to 120°C, close the vacuum valve, and slowly add propylene oxide. At 130~150°C, after the reaction is complete, cool down Discharge at 80°C;: The molar ratio of propylene oxide feeding is 1.01:1.

[0048] (2) Condensation of polyether with acetyl ketone or acetoacetate

[0049] Add polyether, acetyl ketone or acetoacetate, DMAP, and toluene into a reaction kettle equipped with a water separator and a condenser, stir at 25°C for 4 hours, then slowly heat to reflux at 120~130°C, and the reaction product Water is azeotroped with toluene and discharged through the water separator. When anhydrous is formed, the temperature is lowered to 70°C; the molar ratio of polyether: acetyl ketone or acetoacetate: DMAP is...

Embodiment approach

[0055] As a preferred embodiment of the present invention, the weight-average molecular weight of the cyclodextrin-modified polyetheramine is 1800-4000; preferably, the weight-average molecular weight of the cyclodextrin-modified polyetheramine is 2000-3000.

[0056] As a preferred embodiment of the present invention, the cyclodextrin is selected from one or more of hydroxycyclodextrin and aminocyclodextrin.

[0057] As a preferred embodiment of the present invention, the cyclodextrin is aminocyclodextrin.

[0058] As a preferred embodiment of the present invention, the antioxidant is selected from one or a mixture of T501, T502, and T531.

[0059] As a preferred embodiment of the present invention, the antirust agent is selected from one or a mixture of T703, T706, SP-80, and SP-85.

[0060] As a preferred embodiment of the present invention, the preservative is selected from T551 or T561.

[0061] As a preferred embodiment of the present invention, the co-solvent is select...

Embodiment 1~8 and comparative example 1

[0080] A tank of gasoline is prepared according to the formula in Table 1, and the preparation method is as follows (the consumption of the following components are all percentages by weight):

[0081] Weigh according to the required component ratio, mix cyclodextrin-modified polyetheramine, antioxidant, rust inhibitor, preservative, co-solvent evenly at room temperature or not higher than 30°C, and stir until the solution is transparent.

[0082] Table 1 is the raw material formula and consumption (percentage by weight) of preparing a case of gasoline

[0083]

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PUM

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Abstract

The invention discloses a gasoline surfactant named as Yixiangjing and a preparation method thereof. The gasoline surfactant named as Yixiangjing is composed of cyclodextrin-modified polyetheramine, an antioxidant, an antirust agent, an antiseptic and a cosolvent. The gasoline surfactant named as Yixiangjing is capable of effectively cleaning accumulated carbon in an automobile engine atomizer, an intake valve and a combustion chamber, and also is capable of obviously inhibiting formation of carbon deposit in the atomizer, the intake valve and the combustion chamber, thereby improving fuel economy, improving the cold start-up difficult status and reducing harmful gas discharge.

Description

technical field [0001] The invention relates to the technical field of a gasoline one-tank cleaner, more specifically, the invention relates to a gasoline one-tank cleaner and a preparation method thereof. Background technique [0002] At present, affected by the refining process, the content of olefins and aromatics in gasoline in my country is relatively high, and the olefin components are extremely unstable. They are easily oxidized and polymerized under the high-temperature working conditions of the engine, and interact with other impurities in gasoline. Deposits will be generated in the fuel nozzles, intake valves and combustion chambers of the engine, which will affect the performance of the engine, resulting in the deterioration of the gasoline combustion process, increased fuel consumption, and increased exhaust pollutant emissions. This requires the fuel system of the car engine to be kept clean for a long time. Therefore, a tank of gasoline must be added to afterm...

Claims

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Application Information

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IPC IPC(8): C10L1/238C10L1/19C10L1/16C10L10/04
Inventor 林壮
Owner 广州欣途汽车科技有限公司