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Methanol diesel fuel and preparation method thereof

A diesel and methanol technology, applied in the petroleum industry, liquid carbon-containing fuels, fuels, etc., can solve the problems of methanol diesel with short shelf life, inability to store for a long time, and low dispersion, and achieve industrial production, good stability, and preparation The effect of simple method

Inactive Publication Date: 2010-12-15
ZHEJIANG QIANJIANG ENERGY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the emulsion is a colloid of a coarse dispersion system, the stability is poor and the degree of dispersion is low, resulting in a short shelf life of the prepared methanol diesel, poor stability, easy to separate layers, and cannot be stored for a long time

Method used

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  • Methanol diesel fuel and preparation method thereof
  • Methanol diesel fuel and preparation method thereof

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preparation example Construction

[0053] The present invention also provides the preparation method of the methanol diesel described in the above technical scheme, comprising:

[0054] Mix the diesel oil and the surfactant uniformly, add methanol, and mix uniformly to obtain a microemulsion, and the hydrophilic-lipophilic balance value of the surfactant is 3-6;

[0055] Add co-surfactant and auxiliary agent into the microemulsion, and mix uniformly to obtain methanol diesel.

[0056] In the present invention, firstly, the diesel oil and the surfactant are mixed evenly, the mixing method is preferably stirring, and the stirring time is preferably 3min to 5min; then methanol is added to continue mixing uniformly to obtain a microemulsion, and the mixing method is preferably stirring , the stirring time is preferably 3 min to 5 min. Under the action of surfactant, methanol and diesel form a water-in-oil microemulsion.

[0057] Add co-surfactant and auxiliary agent into the microemulsion, and continue to mix eve...

Embodiment 1

[0061] Mix 8L0 diesel oil with 0.05L surfactant at room temperature. The surfactant is obtained by compounding Span-80 and Tween-20 at a mass ratio of 9:1. The HLB value is 4.5. After stirring for 3 minutes, add 1L methanol , continue to stir 3min, obtain microemulsion; Add 0.9L n-dodecyl alcohol and 0.05L auxiliary agent in the obtained microemulsion, obtain methanol diesel oil after stirring 3min, comprise in the described auxiliary agent: the oleic acid of 4 weight parts; 2 weight parts The alkylphenol sulfonate of part; The zinc dialkoxy dithiocarbamate of 0.5 part by weight; The dioxysilane oil of 0.5 part by weight; The isooctyl nitrate of 1 part by weight; The cyclopentadicene of 0.5 part by weight Iron; 1.5 parts by weight of triethanolamine.

[0062] The methanol diesel is observed, and its appearance is clear and transparent.

[0063] The methanol diesel is scanned by an electron microscope, and its particle size is 40nm-150nm, which shows that the methanol diesel i...

Embodiment 2

[0069] Mix 6.3L0 diesel oil with 0.06L OP emulsifier with an HLB value of 3.8 at room temperature, add 2L methanol after stirring for 5 minutes, and continue stirring for 5 minutes to obtain a microemulsion; add 1.6L n-octanol and 0.05L Auxiliary agent, after stirring for 5min, methanol diesel oil is obtained, and the auxiliary agent includes: 6 parts by weight of oleic acid; 4 parts by weight of alkylphenol sulfonate; 1 part by weight of zinc dialkoxy dithiocarbamate; 1 part by weight of dioxysilicone oil; 3 parts by weight of isooctyl nitrate; 1 part by weight of cyclopentaferrocene; 3 parts by weight of triethanolamine.

[0070] The methanol diesel is observed, and its appearance is clear and transparent.

[0071] The methanol diesel is scanned by an electron microscope, and its particle size is 40nm-150nm, which shows that the methanol diesel is a microemulsion.

[0072] Take 200mL of the methanol diesel and place it in a 250mL stoppered measuring cylinder, add 3mL of dis...

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Abstract

The invention provides methanol diesel fuel, which comprises the following components in percentage by volume: 40 to 85 percent of diesel fuel, 5 to 40 percent of methanol, 0.1 to 2 percent of surfactant with the hydrophile-lipophile balance value of 3 to 6, 5 to 30 percent of cosurfactant and 0.1 to 1 percent of aid. The invention also provides a preparation method for the methanol diesel fuel, which comprises the following steps of: uniformly mixing the diesel fuel and the surfactant with the hydrophile-lipophile balance value of 3 to 6, adding the methanol, and uniformly mixing to prepare microemulsion; and adding the cosurfactant and the aid into the microemulsion, and uniformly mixing to prepare the methanol diesel fuel. In the methanol diesel fuel, the methanol and the diesel fuel form the transparent and stable microemulsion under the action of the surfactant and the cosurfactant, so that the prepared methanol diesel fuel has better stability and no demixing after a long time.

Description

technical field [0001] The invention relates to the field of fuel technology, in particular to a methanol diesel and a preparation method thereof. Background technique [0002] Alcohol fuel is a recognized clean fuel and can be used as a substitute for petroleum. Among them, methanol has an oxygen content of up to 50%, and has the advantages of good low temperature performance, fast combustion speed, fast heat release, high thermal efficiency, and low price. Widely used, such as for high compression ratio internal combustion engines, etc. [0003] After the diesel engine is blended with an appropriate amount of methanol, it can greatly reduce exhaust emissions and protect the environment while ensuring the same power. However, the properties of methanol and diesel oil are very different, and it is extremely difficult to dissolve each other. The prior art uses an emulsifier to prepare methanol and diesel oil into an emulsion. For example, the Chinese patent document with ap...

Claims

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Application Information

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IPC IPC(8): C10L1/04C10L1/02C10L1/30C10L1/28C10L1/24C10L1/23C10L1/222C10L1/20C10L1/198C10L1/19C10L1/188C10L1/182
Inventor 金宝福董琳燕苏德香
Owner ZHEJIANG QIANJIANG ENERGY GROUP
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