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Micro emulsified diesel oil and its preparation method

A technology of micro-emulsion and diesel oil, applied in the direction of water treatment and refining, can solve the problems of high cost, large amount of emulsifier, incompatibility with diesel oil, etc., and achieve the effect of low cost, moderate price and easy operation.

Inactive Publication Date: 2007-02-21
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] 1 The compatibility is complicated, and the emulsifiers selected by some technologies need to be compounded with several chemical reagents, which causes a lot of inconvenience to the ingredients and processes
[0015] 2 The amount of emulsifier is too large, and the emulsifier required to form transparent micro-emulsion diesel oil is more than 7%, the cost is too high, and it cannot be popularized
[0016] 3 The preparation of some oil-in-water micro-emulsion diesel oil cannot be miscible with diesel oil, causing inconvenience in use

Method used

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  • Micro emulsified diesel oil and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] raw material:

[0039] Diesel oil 30mL, water 3mL, sorbitan monooleate 0.48g, cetyltrimethylammonium bromide 0.32g, n-butanol 1mL.

[0040] Preparation:

[0041] Dissolve 0.48g of sorbitan monooleate in 30mL of diesel oil, 0.32g of cetyltrimethylammonium bromide, and 1mL of n-butanol in 3mL of water, first stir the diesel oil with a magnetic stirrer, and gradually The aqueous solution is dissolved in diesel oil and becomes translucent to transparent after about 1 hour. Then put the ultrasonic probe into the reactor, using 40kHz ultrasonic, the sound intensity is 0.266W cm -2 , Ultrasonic action time 20 minutes. Then the microemulsion diesel oil becomes completely transparent. It can be kept for more than one year.

Embodiment 2

[0043] raw material:

[0044] Diesel oil 30mL, water 3mL, sorbitan monostearate 0.5g, cetyltrimethylammonium bromide 0.5g, n-butanol 1mL.

[0045] Dissolve 0.5 g of sorbitan monostearate in 30 mL of diesel oil, 0.5 g of cetyltrimethylammonium bromide, and 1 mL of n-butanol in 3 mL of water, first stir the diesel oil solution with a magnetic stirrer, Gradually add the aqueous solution to the diesel solution, and it becomes translucent to transparent after about 1 hour. Then put the ultrasonic probe into the reactor, using 40kHz ultrasonic, the sound intensity is 0.266W cm -2, Ultrasonic action time 20 minutes. Then the microemulsion diesel oil becomes completely transparent. It can be kept for more than one year.

Embodiment 3

[0047] raw material:

[0048] Diesel oil 30mL, water 4mL, sorbitan monooleate 0.6g, cetyltrimethylammonium bromide 0.4g, n-hexanol 1mL.

[0049] Preparation:

[0050] Dissolve 0.6g of sorbitan monooleate in 30mL of diesel oil, 0.4g of cetyltrimethylammonium bromide, and 1mL of n-hexanol in 4mL of water, first stir the diesel oil with a magnetic stirrer, and then dissolve the aqueous solution Soluble in diesel solution, it becomes translucent to transparent after about 1 hour. Then put the ultrasonic probe into the reactor, adopt 40kHz ultrasonic wave, and the sound intensity is 0.3W·cm -2 , Ultrasonic action time 50 minutes. It can be kept for more than six months.

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Abstract

A micro-emulsified diesel oil with high stability and low cost is disclosed. Its preparing process includes such steps as mixing diesel oil with quaternary ammonium salt type cationic surfactant and non-ionic surfactant (anhydrosorbitol ester of fatty acid) and ultrasonic micro-emulsifying.

Description

Technical field: [0001] The invention relates to a diesel oil and a preparation method thereof, in particular to a micro-emulsion diesel oil and a preparation method thereof. Background technique: [0002] Diesel water-mixed combustion technology was proposed more than 100 years ago. At the end of the 1950s, due to the increasingly serious environmental pollution and the crisis of oil resources, it was paid attention to. widely used. my country's diesel water emulsification technology started relatively late, and only made breakthroughs in the early 1980s. In recent years, it has developed rapidly, and has preliminary applications and some patent applications for emulsified diesel. No matter abroad or at home, the research on micro-emulsion diesel is relatively rare. Since the microemulsion diesel water droplet diameter is between 10 and 100nm, it is a thermodynamically stable system with transparent color and is very suitable for use in internal combustion engines. [00...

Claims

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Application Information

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IPC IPC(8): C10G31/08
Inventor 吕效平韩萍芳佘锦锦
Owner NANJING UNIV OF TECH
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