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Low-proportion methanol gasoline compound additive

A composite additive, methanol gasoline technology, applied in the petroleum industry, liquid carbon-containing fuel, fuel, etc., can solve the problems of methanol gasoline turbidity, damage to system balance, large addition amount, etc., achieve simple preparation method, solve power and anti-corrosion Phase separation performance, low cost effect

Active Publication Date: 2013-03-20
CRPC INNOVATION ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. Poor water resistance
[0006] The water resistance problem of low-proportion methanol gasoline has always been a problem that plagues the research of methanol gasoline. In the process of transportation and storage, a small amount of water is mixed into low-proportion methanol gasoline, for example, more than 1‰ in M15, which can destroy the system balance and make methanol Gasoline appears turbid, stratified and other phenomena, seriously affecting the use
[0007] 2. Lower calorific value
However, the amount of addition is large, and the calculation cost is relatively high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Add 90g of aviation kerosene and 8g of anhydrous unsymmetrical dimethylhydrazine to a four-neck flask equipped with a stirring, thermometer, adding funnel, and condenser, heat up to 25°C while stirring, add 2g of cerium nitrate, heat up to reflux temperature, and react at constant temperature for 2 hours . After the reaction was completed, the solid particles in the reaction liquid were filtered out, and the fraction before 190° C. was distilled under normal pressure, and the pH value of the solution was adjusted to 8.5 with glacial acetic acid to obtain 95 g of a power enhancer.

[0020] Add 15mL of methanol (0.375mol), 19mL of formaldehyde aqueous solution (containing 0.25mol of formaldehyde), 21.5mL of ethanol (0.375mol), and 10g of molecular sieves into a four-necked flask equipped with stirring, thermometer, and condenser, and mix and heat up to 80°C, once Add 2g of cation exchange resin catalyst, react for 2h, and distill to obtain 40.5g of clear liquid of methoxy...

Embodiment 2

[0025] 700g of the additive prepared in Example 1 was added to 100kg of M30 methanol gasoline. The test proved that the water solubility increased from 0.50% to 0.65% at 25°C. The bench test shows that after adding compound additives to M15 methanol gasoline, the maximum torque increase is 8.25% and the minimum torque increase is 1.30% at different test speeds under full load.

Embodiment 3

[0027] 100g of the additive prepared in Example 1 was added to 100kg of M5 methanol gasoline, and the test proved that the water solubility increased from the original 0.10% to 0.15% at 25°C. The bench test shows that after adding compound additives to M15 methanol gasoline, the maximum torque increase is 6.30% and the minimum torque increase is 4.25% at different test speeds under full load.

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Abstract

The invention discloses a low-proportion methanol gasoline compound additive. The low-proportion methanol gasoline compound additive is formed by mixing 40-60% by weight of power promoting agent with 40-60% by weight of anti-phase separation agent, wherein the power promoting agent is obtained by taking aviation kerosene and unsymmetrical dimethylhydrazine as raw materials, performing reflux reaction under the action of cerium nitrate and further performing decompression separation; and the anti-phase separation agent is obtained by mixing 15-25% by weight of methoxyethoxy methane mixture, 30-40% by weight of methylal, 20-30% by weight of isooctanol, 15-25% by weight of xylene and 0.1-0.5% by weight of polyethenoxy ether type surface active agent, and performing heating reflux for 4-5 hours. The additive disclosed by the invention can significantly improve the power performance of methanol gasoline and enhances the stability of the methanol gasoline, and the adding quantity is small.

Description

technical field [0001] The invention belongs to the technical field of methanol fuel for vehicles and relates to an additive for methanol gasoline for vehicles. Background technique [0002] my country is a country rich in coal and low in oil. Rational use of coal resources and development of coal chemical industry are necessary means to solve energy problems in my country's economic development. Methanol is rich in resources and can be regenerated, which belongs to biomass energy. Methanol fuel is currently the only economical liquid fuel that can be mass-produced using coal and natural gas as raw materials. The production process is mature and it is easy to store and use. [0003] Adding methanol to gasoline in the form of blending to prepare methanol gasoline for blending is the simplest method of using methanol fuel, and extensive research has been carried out by countries all over the world. M series of clean methanol gasoline compounded with methanol fuel and co-solv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/226C10L1/18C10L1/185C10L1/182C10L1/192
Inventor 申志明常永龙庞尔国吴跃曲郭芬
Owner CRPC INNOVATION ENERGY
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