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Supersonic reaction procedure of biodiesel extraction technology

A biodiesel, ultrasonic technology, applied in the petroleum industry, biofuel, liquid carbon-containing fuel, etc., can solve the problems of uneven stirring, difficult quality assurance, low production efficiency, etc., to shorten the reaction time and reduce the production cost. , the effect of reducing energy consumption

Inactive Publication Date: 2012-12-12
林成原 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The object of the present invention is, according to the above-mentioned defects of the prior art, to provide a kind of supersonic reaction of biodiesel refining technology that can not only shorten the transesterification reaction time, but also reduce the energy consumed during the reaction and reduce the production cost In order to overcome the problems of long reaction time, uneven stirring, low production efficiency, and difficult quality assurance in the existing process of using electric motors for stirring

Method used

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  • Supersonic reaction procedure of biodiesel extraction technology
  • Supersonic reaction procedure of biodiesel extraction technology
  • Supersonic reaction procedure of biodiesel extraction technology

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Embodiment 1

[0037] Such asfigure 1 Shown, a kind of ultrasonic reaction process of biodiesel refining technology of the present invention comprises the following steps:

[0038] The first step is to measure animal fat and methanol with a molar ratio of 1:20;

[0039] In the second step, the alkaline catalyst sodium hydroxide is predissolved in methanol, the weight of the alkaline catalyst sodium hydroxide is 1% of the animal fat weight, and the catalyst / alcohol mixed solution is obtained;

[0040] The third step is to pour the animal fat into the ultrasonic reaction container, turn on the heater, heat the animal fat to 80°C, and activate the ultrasonic vibration mechanism at the same time. The frequency of the ultrasonic vibration is 30KHz;

[0041] The fourth step is to continue to use ultrasonic vibration, the frequency of ultrasonic vibration is 30KHz, and pour the catalyst / alcohol mixed solution obtained in the second step into animal fat, and heat it to 60°C for transesterification r...

Embodiment 2

[0044] The ultrasonic reaction process of a kind of biodiesel refining technology of the present invention comprises the following steps:

[0045] The first step is to measure vegetable oil and ethanol with a molar ratio of 1:10;

[0046] In the second step, the basic catalyst potassium hydroxide is pre-dissolved in ethanol, and the weight of the basic catalyst potassium hydroxide is 0.5% of the vegetable oil weight to obtain a catalyst / alcohol mixed solution;

[0047] The third step is to pour the vegetable oil into the ultrasonic reaction container, turn on the heater, heat the vegetable oil to 60°C, and activate the ultrasonic vibration mechanism at the same time. The frequency of the ultrasonic vibration is 50KHz;

[0048] The fourth step is to continue to use ultrasonic vibration, the frequency of ultrasonic vibration is 50KHz, pour the catalyst / alcohol mixed solution obtained in the second step into vegetable oil, heat to 70°C for transesterification reaction, and obtain...

Embodiment 3

[0051] The ultrasonic reaction process of a kind of biodiesel refining technology of the present invention comprises the following steps:

[0052] The first step, measure waste oil and n-propanol that the molar ratio is 1:30;

[0053] In the second step, the basic catalyst potassium hydroxide is pre-dissolved in n-propanol, and the weight of the basic catalyst potassium hydroxide is 4% of the waste oil weight to obtain a catalyst / alcohol mixed solution;

[0054] The third step is to pour the waste oil into the ultrasonic reaction container, turn on the heater, heat the waste oil to 90°C, and activate the ultrasonic vibration mechanism at the same time. The frequency of the ultrasonic vibration is 70KHz;

[0055] The fourth step is to continue to use ultrasonic vibration, the frequency of ultrasonic vibration is 70KHz, and pour the catalyst / alcohol mixed solution obtained in the second step into the waste oil, and heat it to 80°C for transesterification reaction to obtain the r...

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Abstract

The invention belongs to the technical field of biodiesel extraction and especially relates to a supersonic reaction procedure of a biodiesel extraction technology. The supersonic reaction procedure comprises the following steps of: Step 1, weighing grease and alcohol according to the mol ratio of 1:(1-40); Step 2, pre-dissolving an alkaline catalyst in the alcohol, so as to obtain a mixed solution of the catalyst and the alcohol, wherein the weight of the alkaline catalyst is 0.1-5% of the weight of the grease; Step 3, pouring the grease into a supersonic reaction container, turning on a heater, and simultaneously activating a supersonic oscillation mechanism; Step four, continuously adopting supersonic oscillation, pouring the catalyst / alcohol mixed solution obtained from the Step 2 into the grease, and heating for transesterification reaction so as to obtain a reaction product; and Step five, separating the reaction product obtained from the Step four so as to obtain biodiesel. In comparison with the prior art, supersonic physical shockwave is used in the invention so as to shorten the transesterification reaction time, minimize energy consumed during the reaction and reduce production cost.

Description

technical field [0001] The invention belongs to the technical field of biodiesel refining, in particular to an ultrasonic reaction process of the biodiesel refining technology. Background technique [0002] The most commonly used method of biodiesel extraction is transesterification technology, which can be subdivided into strong alkali, strong acid, enzyme and ultra-high pressure that can only be reacted under high pressure and high temperature according to the different catalysts added. Critical methanol process; at present, 60% of the world's production capacity, such as Europe, the United States, Japan and other countries, mostly adopt strong alkali process, which has the advantages of simple process, low cost and fast response, so it is widely used in mass production, the only difference is the used The raw material oil for the strong alkali process varies depending on the place of origin. European countries mostly use rapeseed oil, sunflower oil and other high-fat seed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11C3/04C10L1/02
CPCY02E50/13Y02E50/10
Inventor 林成原林修安
Owner 林成原
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