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Micro-emulsified biological diesel and preparation method thereof

A bio-diesel and micro-emulsion technology, applied in water treatment and refining, can solve the problems of not being widely popularized, unable to use diesel engines, reducing exhaust pipe emissions, etc., achieving good fuel economy, low cost, and environmental friendliness. low pollution effect

Inactive Publication Date: 2008-08-27
WUHAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Emulsified diesel has been available for decades, but it has not been widely used so far. The reason is that there are many shortcomings in the existing emulsified diesel: 1. Poor stability
The specific performance is: it can be used safely in all diesel engines; it provides the same thermal energy and engine durability as petrochemical diesel fuel, is non-flammable, non-toxic, can reduce exhaust pipe emissions, has no visible smoke concentration, and has no toxic gases, but cannot applied to diesel engine

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A microemulsion biodiesel and a preparation method thereof. The microemulsified biodiesel is prepared from biodiesel, compounded emulsifier, methanol, cosolvent, water, and ethanolamine, and its mass percentage is:

[0020] Biodiesel 50~51wt% Compound emulsifier 5~5.5wt%

[0021] Methanol 28~30wt% n-Butanol 3~4wt%

[0022] Water 10~11wt% Ethanolamine 0.1~0.5wt%

[0023] The preparation steps of this embodiment are: according to the mass percentage of the above mixture, first add the compound emulsifier into the biodiesel, stir until it is completely dissolved, then add the mixed solution of methanol, water, and n-butanol, and then stir Add ethanolamine in 20-30min until it becomes transparent.

[0024] Wherein: the preparation of compound emulsifier is to carry out mixing and stirring by span80: the mass ratio of tween80 is 8: 2, then the mass ratio of its mixture and oleic acid is 1: 4 carries out mixing and stirring (the compound emulsification of each embodiment b...

Embodiment 2

[0026] A microemulsion biodiesel and a preparation method thereof. The microemulsified biodiesel is prepared from biodiesel, compounded emulsifier, methanol, cosolvent, water, and ethanolamine, and its mass percentage is:

[0027] Biodiesel 51~52wt% Compound emulsifier 5.5~8wt%

[0028] Methanol 27~29wt% Isobutanol 2.5~3wt%

[0029] Water 9~13wt% Ethanolamine 0.5~1wt%

[0030] The preparation steps of this embodiment are: according to the mass percentage of the above mixture, first add the compound emulsifier into the biodiesel, stir until it is completely dissolved, then add the mixed solution of methanol, water, and isobutanol, and stir for 30 After ~40min, add ethanolamine to make it transparent.

Embodiment 3

[0032] A microemulsion biodiesel and a preparation method thereof. The microemulsified biodiesel is prepared from biodiesel, compounded emulsifier, methanol, cosolvent, water, and ethanolamine, and its mass percentage is:

[0033] Biodiesel 52~56wt% Compound emulsifier 6~9wt%

[0034] Methanol 23~28wt% n-pentanol 3~3.5wt%

[0035] Water 8~10wt% Ethanolamine 0.1~0.5wt%

[0036] The preparation steps of this embodiment are as follows: according to the mass percentage of the above mixture, first add the compound emulsifier to the biodiesel, stir until it is completely dissolved, then add the mixed solution of methanol, water, and n-amyl alcohol, and stir for 35 After ~45min, add ethanolamine to adjust to transparent.

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PUM

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Abstract

The invention particularly relates to micro-emulsion biological diesel oil and a process for preparation thereof. The technical proposal is that the component and content of the micro-emulsion biological diesel oil comprise biological diesel oil 50-70wt%, compound emulsifier 1-10wt%, carbinol 10-30wt%, cosolvent 1-5wt%, water 5-15wt% and ethanolamine 0.1-1wt%. The process for preparing the micro-emulsion biological diesel oil comprises the following specific steps: adding compound emulsifier in biological diesel oil according to the content of the above each component, adding mixed solution of carbinol, water and cosolvent after completely dissolving through stirring, stirring 20-60min, getting ethanolamine, and adjusting to be transparent. The process for preparation of the invention has the advantages of simple technique, low production cost and environmental friendly. The micro-emulsion biological diesel oil which is prepared has the advantages of transparency, nondiscolouring, long stabilization time and excellent oil saving property, which is not layered in long term.

Description

technical field [0001] The invention belongs to the technical field of emulsified diesel oil. Specifically relates to a microemulsion biodiesel and a preparation method thereof. Background technique [0002] Emulsified diesel oil has come out for several decades, but it has not been widely used so far. The reason is that the existing emulsified diesel oil has many shortcomings: 1. Poor stability. At present, most of the emulsified diesel oils researched by countries in the world are yellow-white emulsions with a short shelf life and cannot be stored for a long time. Therefore, they cannot be used as commodity diesel oil turnover, which brings inconvenience to popularization; 2. The emulsification equipment is expensive. At present, most of the emulsification equipment uses ultrasonic emulsification devices, and the equipment is complicated, the investment is large, and the maintenance is inconvenient; 3. The cost of emulsification is high. Although it has good fuel-saving ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G31/08
Inventor 伍林李宇鹏易德莲程正载
Owner WUHAN UNIV OF SCI & TECH
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