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Microemulsified biodiesel and preparation method thereof

A technology of biodiesel and microemulsion, applied in the petroleum industry, liquid carbon-containing fuel, fuel, etc., can solve the problems of little industrial application value, complicated emulsification formula, high emulsification cost, etc., and achieve safe and non-toxic sources, uniform color, Recipe Simple Effects

Inactive Publication Date: 2012-04-18
QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To sum up, the current micro-emulsion biodiesel processing technology still has some defects: the emulsification formula is complicated, the emulsification cost is high, although it can achieve the purpose of saving fuel, the economic benefit is poor, and the industrial application value is not great

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] According to the production of 1 ton of microemulsified biodiesel, at room temperature, 92% (920 kilograms) of soybean oil methyl ester, 1% (1 kilogram) of EL-12 emulsifier, 1% (1 kilogram) of Span 80 emulsifier are taken by weight ), water 6% (6 kg);

[0021] a. Mix EL-12, Span 80 and biodiesel according to the above weight ratio, and the obtained solution is uniform, and its properties are similar to those of biodiesel;

[0022] b. Slowly add 6% of water under the condition of uniform stirring, and after fully stirring and mixing, the micro-emulsified biodiesel can be prepared.

Embodiment 2

[0024] At room temperature, take soybean oil methyl ester 93%, EL12 emulsifier 1.05%, Span 80 emulsifier 0.95%, water 5% by weight;

[0025] a. Mix EL-12, Span 80 and biodiesel according to the above weight ratio, and the obtained solution is uniform, and its properties are similar to those of biodiesel;

[0026] b. Slowly add 5% water under the condition of uniform stirring, and stir and mix thoroughly to prepare the micro-emulsified biodiesel.

Embodiment 3

[0028] At room temperature, take rapeseed oil methyl ester 89%, EL-12 emulsifier 1.5%, Span 80 emulsifier 1.5%, water 8% by weight;

[0029] a. Mix EL-12, Span 80 and biodiesel according to the above weight ratio, and the obtained solution is uniform, and its properties are similar to those of biodiesel;

[0030] b. Slowly add 8% of water under the condition of uniform stirring, and fully stir and mix to prepare the micro-emulsified biodiesel.

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Abstract

The invention discloses microemulsified biodiesel and a preparation method thereof. The microemulsified biodiesel comprises: by weight, 88 to 92% of biodiesel, 1.0 to 2.0% of an emulsifier EL-12 (castor oil-ethylene oxide condensation product), 1.0 to 2.0% of Span 80 (sorbitan monooleate), and 5 to 10% of water, wherein a use amount ratio of the emulsifier EL-12 to the Span 80 is in a range of 0.9 to 1.1. The preparation method comprises the following steps of uniformly mixing the biodiesel, the emulsifier EL-12 and the Span 80 according to the above ratios, and adding a certain amount of water into the mixture with stirring. The microemulsified biodiesel has wide raw material sources, needs simple preparation processes and has a low cost. After microemulsification, the microemulsified biodiesel has low viscosity, good stability and a high combustion ratio, and can be used widely.

Description

technical field [0001] The invention belongs to the technical field of biodiesel processing, and in particular relates to a uniform, stable microemulsion biodiesel with high combustion calorific value. [0002] The present invention also relates to the production method of the microemulsion biodiesel. Background technique [0003] Compared with biodiesel, microemulsion biodiesel produces less NOx and less soot emission, which can achieve good environmental protection and energy saving effects. Microemulsion biodiesel technology has achieved some achievements in the past few decades, but there are also some problems. Gao Yongjian (CN101348748A) et al have studied the preparation of microemulsified biodiesel with mineral diesel oil, tallow, methyl alcohol, naphthenic acid, OP emulsifier, sodium dodecylsulfonate and triethanolamine, and its emulsifier has many compositions, and the formula is relatively complex. People such as Sun Ping (CN200810234563) have studied the micro...

Claims

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Application Information

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IPC IPC(8): C10L1/32C10L1/18C10L1/19
Inventor 张跃冬马玉久沈树华侯同刚
Owner QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI
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