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Production process for producing biological diesel oil from vegetable oil

A biodiesel and production process technology, applied in the field of oil chemistry, can solve the problems affecting the purity of fatty acid methyl esters, etc., and achieve the effects of low cost, simple method and short reaction process

Inactive Publication Date: 2007-03-14
孙文庆
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

Fatty acid methyl esters produced by existing known technical methods need to add a large amount of catalysts, additives, etc., which are not easy to be extracted from the final product, which affects the purity of fatty acid methyl esters

Method used

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Examples

Experimental program
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Effect test

Embodiment

[0011] Example: Mix soybean oil, peanut oil, and corn oil in a weight ratio of 1:1:1, fully stir; inject into the reaction tower for dehydration, first dehydrate the vegetable oil in the reaction tower, the temperature of the reaction tower is 90 °C, The pressure is 0.4 kPa, after dehydration for 30 minutes, so that the average water content of the mixed vegetable oil does not exceed 1.4, and the raw material oil is obtained; the raw material oil is added to the heating furnace and heated, and after reaching 370 ° C, it is injected into the distillation tower for distillation. The temperature at the top of the tower is 320°C, and the temperature at the top of the tower is 330°C; after 1.5 hours of distillation, the distilled oil vapor is fractionated through the rectification tower, and the distilled oil vapor obtained at the top of the tower enters the filter tower and is filtered, then enters the cooling tower for cooling, and the cooling water temperature is 40°C, the oil ob...

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PUM

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Abstract

The present invention provides process of producing biodiesel oil (fatty methyl ester) with vegetable oil fatty acid. The production process includes the following steps: 1. dewatering vegetable oil in a reaction tower at 80-120 deg.c and 0.3-0.5 KPa to obtain material oil with water content not more than 1.4 %; 2. heating the material oil at 320-340 deg.c in a heating furnace and distilling in a distilling tower at the temperature not lower than 310 deg.c for 1-2 hr; 3. fractioning the distilled oil and vapor in a rectifying tower and filtering the obtain biodiesel oil in a filtering tower; and 4. cooling the filtered biodiesel oil with cooling water at 30-50 deg.c to obtain biodiesel oil product. The production process has high conversion rate, less catalyst, less additives and other features.

Description

technical field [0001] The invention relates to a method for producing fatty acid methyl ester (biodiesel) from vegetable oil fatty acid, which belongs to the field of oil chemistry. Background technique [0002] In the disclosed technology, described in CN1382762A, it is in the presence of an acidic catalyst, the waste animal and vegetable oils with various acid values ​​are subjected to alcoholysis and esterification reactions, and then after a series of treatments, add soda ash A method of producing fatty acid methyl esters by distillation. Described in CN1724613, it adopts a transesterification reaction by raw materials, first recovers methanol after the reaction is finished, and then refines biodiesel by steam distillation. Fatty acid methyl esters produced by existing known technical methods need to add a large amount of catalysts, additives, etc., which are not easy to be extracted from the final finished product, which affects the purity of fatty acid methyl esters....

Claims

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Application Information

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IPC IPC(8): C10G3/00
CPCY02E50/13Y02E50/10Y02P30/20
Inventor 孙文庆
Owner 孙文庆
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