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A kind of methanol gasoline additive and preparation method thereof

A technology of methanol gasoline and additives, which is applied in the direction of fuel additives, petroleum industry, liquid carbon-containing fuels, etc., can solve the problems of methanol gasoline encountering water, stratification, metal corrosion performance, etc., and achieves reduction of soot, high production efficiency, and effective Good results

Active Publication Date: 2020-11-20
中新科技投资控股有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems of methanol gasoline, water and low temperature stratification, metal corrosion performance, etc.

Method used

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  • A kind of methanol gasoline additive and preparation method thereof
  • A kind of methanol gasoline additive and preparation method thereof
  • A kind of methanol gasoline additive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) Add 1.36kg of raw material pentaerythritol and 13.6L of toluene into the reaction vessel, raise the temperature to 65°C, after the pentaerythritol dissolves, add 30g of catalyst concentrated sulfuric acid, and continue to stir and mix evenly under nitrogen gas protection;

[0037] (2) Weigh 1.59kg of 6-(4-5-dihydro-1H-imidazole-2-amino)-hexanoic acid, dilute and mix with 8L of toluene;

[0038] (3) set up the reaction device, under the nitrogen gas protection condition, increase the step (1) system temperature, until the system starts to reflux, then add the solution of the step (2) dropwise in the step (1) device, and control the rate of addition to be 10 drops / min, continue to reflux for 48 hours after the dropwise addition, and measure the esterification rate of the reaction system to be 88%;

[0039] (4) After the reaction finishes, cool to room temperature, wash with saturated sodium bicarbonate water 3-5 times, then wash 3-5 times with deionized water, remove ...

Embodiment 2

[0044] (1) Add 1.36kg of raw material pentaerythritol and 16.3L of xylene into the reaction vessel, heat up to 60°C, after the pentaerythritol is dissolved, add 70.8g of catalyst p-toluenesulfonic acid, and continue to stir and mix evenly under nitrogen gas protection;

[0045] (2) Weigh 1kg of 6-(4-5-dihydro-1H-imidazole-2-amino)-hexanoic acid, dilute and mix with 6.5L xylene;

[0046] (3) set up the reaction device, under the nitrogen gas protection condition, increase the step (1) system temperature, until the system starts to reflux, then add the solution of the step (2) dropwise in the step (1) device, and control the rate of addition to be 12 drops / min, continue to reflux for 44 hours after the dropwise addition, and measure the esterification rate of the reaction system to be 85%;

[0047] (4) After the reaction finishes, cool to room temperature, wash with saturated sodium bicarbonate water 3-5 times, then wash 3-5 times with deionized water, remove trace water in the oi...

Embodiment 3

[0049] (1) 1.36kg of raw material pentaerythritol and 20.4LN'N-dimethylformamide were added to the reaction vessel, the temperature was raised to 70°C, after the pentaerythritol was dissolved, 167.5g of catalyst methanesulfonic acid was added, under the protection condition of helium gas, Continue to stir to mix well;

[0050] (2) Weigh 1.99kg of 6-(4-5-dihydro-1H-imidazole-2-amino)-hexanoic acid, dilute and mix with 15.9L of N'N-dimethylformamide;

[0051] (3) set up the reaction device, under the protection condition of helium gas, increase the temperature of the step (1) system until the system starts to reflux, then add the solution of the step (2) dropwise to the device of the step (1), and control the rate of addition It was 10 drops / min, and the reflux reaction was continued for 40h after the dropwise addition, and the esterification rate of the reaction system was determined to be 92%;

[0052] (4) After the reaction finishes, cool to room temperature, wash with satur...

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Abstract

The invention belongs to the technical field of methanol fuel for vehicles and in particular relates to a methanol gasoline additive and a preparation method thereof. The structural formula is as shown in the specification. According to the methanol gasoline additive and the preparation method thereof disclosed by the invention, the methanol gasoline additive and methanol are easy to dissolve, dispersion is uniform, the stability is excellent, and no other special process needs to be increased for treatment; due to polyhydroxy groups and imidazole groups contained in the additive structure, the water resistance and metal corrosion resistance of methanol gasoline can be greatly improved, chain paraffin is capable of resisting low-temperature phase separation, low-temperature easily startingis realized, and air resistance is avoided at a high temperature; and the methanol gasoline additive is simple and easily operable in preparation method, low in cost and energy consumption, environment-friendly, pollution-free and suitable for industrial production.

Description

technical field [0001] The invention belongs to the technical field of methanol fuel for vehicles, and in particular relates to a methanol gasoline additive and a preparation method thereof. Background technique [0002] With the rapid development of the world economy, the number of cars is increasing year by year. At present, the number of cars in my country is more than 70 million. The demand for vehicle fuel is increasing, and environmental problems are becoming more and more serious. With the increasing shortage of energy reserves in the world, The situation of depletion of oil resources will become more severe. my country's economy is developing at a high speed, and most of the oil consumed every year needs to be imported. Energy and environmental issues restrict the rapid development of my country's economy. Therefore, seeking new clean alternative energy has become a key issue to promote my country's economic development. [0003] Gasoline has always been the main f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L1/10C10L10/04C10L10/00C10L1/228C10L1/02
CPCC10L1/02C10L1/10C10L1/2283C10L10/00C10L10/04
Inventor 谢爱丽
Owner 中新科技投资控股有限公司
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