A kind of preparation method of methanol gasoline composite additive

A compound additive, methanol gasoline technology, used in the petroleum industry, liquid carbon-containing fuels, fuels, etc., can solve the problems of easy phase separation, excessive swelling of materials, large swelling force, etc. Prevent gum or precipitation, wide-ranging effect

Inactive Publication Date: 2016-08-17
陈传伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the direct mixing of methanol and gasoline mainly has the following problems: (1) stratification with water: when methanol and gasoline are miscible, the compatibility is affected by temperature and gasoline composition, and phase separation will easily occur in the presence of trace moisture, thus affecting Normal use of mixed fuel
(2) Cause rubber swelling: Methanol has a greater swelling force on some rubber and plastic parts than gasoline, which will cause excessive swelling of the material, thereby affecting the air tightness of the mechanical oil pump and causing oil circuit failure

Method used

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  • A kind of preparation method of methanol gasoline composite additive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The composition and mass percentage of the methanol-gasoline composite additive are: 25% of methyl tert-butyl ether, 6% of benzotriazole, 55% of isopropanol, 3.5% of p-toluidine, 0.5% of octadecylamine and 2 , 6-di-tert-butyl-p-cresol 10%,

[0020] The compounding process implementation of this methanol-gasoline composite additive:

[0021] ① First inject methyl tert-butyl ether and isopropanol into the mixing tank according to the ratio, reaching a point slightly lower than 3 / 5 of the volume of the mixing tank, and circulate and mix for about 10 minutes.

[0022] ②Add a certain amount of benzotriazole, p-toluidine, octadecylamine and 2,6-di-tert-butyl-p-cresol into the mixing tank in turn.

[0023] ③Start the mixing tank again, and circulate and mix for about 30 minutes, so that the solids are completely dissolved and mixed evenly.

[0024] ④ After the mixed solution is transferred out, it is filtered, and the filtered filtrate is sealed and stored to obtain the meth...

Embodiment 2

[0026] The composition and mass percent of the methanol-gasoline compound additive are: 40% of methyl tert-butyl ether, 2% of benzotriazole, 35% of isopropanol, 15.5% of p-toluidine, 2.5% of octadecylamine and 2 , 6-di-tert-butyl-p-cresol 5%.

[0027] The compounding process implementation of this methanol-gasoline composite additive:

[0028] ① First inject methyl tert-butyl ether and isopropanol into the mixing tank according to the ratio, reaching a point slightly lower than 3 / 5 of the volume of the mixing tank, and circulate and mix for about 15 minutes.

[0029] ②Add a certain amount of benzotriazole, p-toluidine, octadecylamine and 2,6-di-tert-butyl-p-cresol into the mixing tank in turn.

[0030] ③Start the mixing tank again, and circulate and mix for about 40 minutes, so that the solids are completely dissolved and mixed evenly.

[0031] ④ After the mixed solution is transferred out, it is filtered, and the filtered filtrate is sealed and stored to obtain the methanol...

Embodiment 3

[0033] The composition and mass percentage of the methanol-gasoline compound additive are: 55% of methyl tert-butyl ether, 0.5% of benzotriazole, 15% of isopropanol, 18% of p-toluidine, 8.5% of octadecylamine and 2 , 6-di-tert-butyl-p-cresol 1%.

[0034] The compounding process implementation of this methanol-gasoline composite additive:

[0035] ① First inject methyl tert-butyl ether and isopropanol into the mixing tank according to the ratio, reaching a point slightly lower than 3 / 5 of the volume of the mixing tank, and circulate and mix for about 20 minutes.

[0036] ②Add a certain amount of benzotriazole, p-toluidine, octadecylamine and 2,6-di-tert-butyl-p-cresol into the mixing tank in sequence.

[0037] ③Start the mixing tank again, and circulate and mix for about 50 minutes, so that the solids are completely dissolved and mixed evenly.

[0038] ④ After the mixed solution is transferred out, it is filtered, and the filtered filtrate is sealed and stored to obtain the m...

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Abstract

The invention relates to a method for preparing a compound methanol gasoline additive, which is characterized in that the compound methanol gasoline additive has hydrotropy, anti-rubber swelling property, oxidation resistance, metal corrosion resistance and combustion-supporting property. The additive comprises 10-55% of methyl tert-butyl ether, 0.05-10% of BTA, 15-60% of isopropyl alcohol, 0.03-25% of p-toluidine, 0.02%-12% of octadecylamine and 0.1-15% of 2,6 di-t-butyl-p-cresol. When the additive is used, firstly the prepared additive is mixed with methanol, and then mixed with a certain proportion of base gasoline uniformly to obtain methanol gasoline fuel. No ash is generated after the methanol gasoline prepared from the compound additive is combusted, and the emission of harmful substances in the exhaust can be greatly reduced. The additive has good low-temperature stability and dynamic performance, the normal operation of the engine system can not be affected on the premise of not changing the structure of the engine condition. The compound methanol gasoline additive has wide sources of raw materials, simple process and easy popularization.

Description

technical field [0001] The invention relates to a method for preparing a methanol-gasoline composite additive Background technique [0002] With the development of the national economy and the continuous improvement of environmental protection requirements, it is of great significance to develop environmentally friendly clean fuels for vehicles in our country. Alcohol fuel is an internationally recognized clean alternative fuel. Ni Weidou, academician of the Chinese Academy of Engineering and chairman of the Steering Committee of the Tsinghua-BP Clean Energy Research and Education Center, believes that the most qualified product that can replace petroleum in my country should be methanol gasoline. [0003] Methanol is an organic fuel with physical and chemical properties similar to gasoline. It has an odor similar to ethanol, is colorless and transparent, is flammable and volatile, and can be produced using natural gas, coal, and biological materials. The mixed fuel-methan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L1/185C10L1/233C10L1/182C10L1/222C10L1/183
Inventor 陈传伟
Owner 陈传伟
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