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Preparation of biodiesel oil by industrial sonochemical technology

A technology of biodiesel and chemical technology, which is applied in the field of industrial sonochemical preparation of biodiesel, which can solve the problems that the environmental protection characteristics have not been fundamentally improved, the moving parts have not been reduced, and the safety has not been increased, so as to save reaction time and reduce equipment corrosion , the effect of shortening the reaction cycle

Inactive Publication Date: 2014-05-14
TIANJIN SANHE ZHONGCHENG PETROLEUM PROD SALESCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The CN1896183A method is an application experiment of pure ultrasonic waves in quantitative chemical reactions. Although he did not give the model of the reactor, he still uses mechanical inertia stirring in the reaction, and the stirring speed reaches 1500-2000 rpm without reducing the movement. Components, without increasing safety; high medium ratio is still used, the molar ratio of methanol to raw oil is 20-50 to 1, energy consumption and material consumption are still large, and the reaction time is about 2 hours. From the perspective of the whole process, the environmental protection characteristics are not not fundamentally improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1. Dissolve KOH accounting for 1% of soybean oil in methanol. After measuring the molar ratio of methanol to soybean oil to 6:1, add soybean oil heated to 50±1°C into the reaction chamber of the sonication reactor. Immediately add methanol to the point where the total volume should not exceed two-thirds of the volume of the reaction chamber and start the ultrasonic generating device. After 15 minutes, turn off the ultrasonic generating device. After stopping the reaction, complete the operation procedure 5-8 to obtain the finished biodiesel. The measured yield was 99%.

Embodiment 2

[0017] Embodiment 2, catalyzer is used NaOH instead, and consumption is 0.8% and reaction time is controlled at 25 minutes, and all the other are the same with embodiment 1. And the two-hand rate is 98.5%.

Embodiment 3

[0018] Example 3. Dissolve KOH accounting for 1% of cottonseed oil in methanol, measure the molar ratio of methanol to cottonseed oil to 6:1, and add cottonseed oil heated to 55±1°C into the reaction chamber of the sonication reactor Add methanol immediately, the total volume shall not exceed two-thirds of the volume of the reaction chamber, and start the ultrasonic generating device for 20 minutes, then turn off the ultrasonic generating device, stop the reaction, and complete the operation procedure 5-8 to obtain the finished diesel oil. The measurement yield was 98%.

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PUM

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Abstract

The invention relates to an industrial sonochemical technology for preparing biodiesel oil and provides a novel technology for preparing the biodiesel oil through a complete industrial sonochemical method. Compared with an existing preparation process, the industrial sonochemical technology has the following advantages that 1, the reaction time is saved, the reaction cycle is shortened, and the whole esterization time is only 5%-10% of the conventional reaction time; 2, the usage amount of a catalyst is saved and is only 50%-70% of that in a conventional reaction, and various KOH or NaOH base catalysts can be selected and used; 3, plant oil such as soybean oil, cotton seed oil and palm oil can be processed; 4, the conversion rate is high and main quality indexes of the finished biodiesel oil all meet the national standard requirements; 5, a biochemical reactor is small in size, few moving parts are required, the safety is high, non-inertial stirring is realized, and equipment corrosion is reduced; 6, no thermal degradation reaction is produced and the deterioration of raw oil and generated oil is avoided.

Description

technical field [0001] The invention relates to an industrial sonochemical technology for preparing biodiesel. Background technique [0002] Biodiesel refers to long-chain fatty acid monoalkyl esters obtained by transesterification of animal and vegetable oils and methanol or ethanol, the most typical of which is long-chain fatty acid methyl ester, which has been widely used in many countries due to its outstanding environmental protection and renewability. It has been applied, and what has been widely used at present is the catalytic transesterification method. This method consumes a lot of materials, energy and work, especially the production cycle is as long as 4-6 hours. [0003] The CN1896183A method is an application experiment of pure ultrasonic waves in quantitative chemical reactions. Although he did not give the model of the reactor, he still uses mechanical inertia stirring in the reaction, and the stirring speed reaches 1500-2000 rpm without reducing the movement...

Claims

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Application Information

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IPC IPC(8): C10G3/00
CPCY02E50/10Y02P30/20
Inventor 鞠世仁张凤泉何洪泉只炳生
Owner TIANJIN SANHE ZHONGCHENG PETROLEUM PROD SALESCO