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Method for rapidly preparing fatty acids from illegal cooking oil

A fatty acid and gutter oil technology, which is applied in fatty acid production, fat oil/fat refining, fatty acid preparation/refining, etc. It can solve the problems of gutter oil polluting the environment, endangering diet health, and long preparation cycle, etc., to increase catalytic activity and increase catalytic efficiency. performance, increasing specific surface area and effect of alkalinity

Inactive Publication Date: 2017-10-17
安庆华威油脂科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Throw it away, it will pollute the environment
Due to the low price of waste oil, the preparation of fatty acids from waste oil can not only reduce the preparation cost of high-priced fatty acids, but also solve the problems of environmental pollution and food health hazards caused by waste oil. Longer, lower yield

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A method for rapidly preparing fatty acids from waste oil, comprising the steps of:

[0022] S1, take the gutter oil through primary filtration, centrifugation, and secondary filtration to obtain clear liquid oil;

[0023] S2. Add water to the clear liquid oil obtained in S1 and mix evenly, then add catalyst and adsorbent, heat up, keep stirring, feed hydrogen, continue keeping warm and stirring, evaporate under reduced pressure, and collect evaporated gas to obtain fatty acid.

Embodiment 2

[0025] A method for rapidly preparing fatty acids from waste oil, comprising the steps of:

[0026] S1. Take gutter oil and go through primary filtration, centrifugation, and secondary filtration to obtain clear liquid oil. Among them, use a 5 μm filter membrane to perform primary filtration, the temperature of primary filtration is 90°C, the centrifugal speed is 7000r / min, and the centrifugal time is 15min. , using a nano-overfrequency vibration module for secondary filtration, the temperature of the secondary filtration is 80°C;

[0027] S2. Add water to the clear liquid oil obtained in S1 and mix evenly, then add catalyst and adsorbent, heat up to 80°C, keep stirring for 50min, feed hydrogen at a speed of 200ml / min, continue keeping warm and stirring for 40min, and adjust the pressure to 1.5MPa, the temperature is 450°C, evaporate under reduced pressure, and collect the evaporated gas to obtain fatty acid.

Embodiment 3

[0029] A method for rapidly preparing fatty acids from waste oil, comprising the steps of:

[0030] S1. Take the gutter oil and filter it once, centrifuge it, and filter it twice to obtain clear liquid oil. Among them, use a filter membrane of 15 μm for the first filtration, the temperature of the first filtration is 80°C, the centrifugation speed is 9000r / min, and the centrifugation time is 10min , using a nano-overfrequency vibration module for secondary filtration, the temperature of the secondary filtration is 90°C;

[0031] S2, add water to the clear liquid oil obtained in S1 and mix evenly, then add catalyst and activated carbon, heat up to 70°C, keep stirring for 70min, feed hydrogen at a speed of 150ml / min, continue keeping warm and stirring for 60min, and adjust the pressure to 1MPa, temperature 550°C, evaporate under reduced pressure, collect evaporated gas to obtain fatty acid, wherein, the weight ratio of clear liquid oil, water, catalyst, and activated carbon is 1...

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PUM

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Abstract

The invention discloses a method for rapidly preparing fatty acids from illegal cooking oil. The method comprises the following steps: S1, performing primary filtering on illegal cooking oil, centrifuging, and performing secondary filtering so as to obtain liquor oil; S2, adding water into the liquor oil obtained in S1 for uniformly mixing, adding a catalyst and an adsorbent, raising the temperature, maintaining the temperature, stirring, introducing hydrogen, continuing maintaining the temperature and stirring, performing reduction vaporization, and collecting the evaporated gas, thereby obtaining the fatty acids. According to the method disclosed by the invention, the proper preparation process is selected, and the appropriate catalyst and adsorbent are combined, so that the preparation cycle is greatly shortened, the preparation efficiency of the fatty acids is improved, and high yield is maintained.

Description

technical field [0001] The invention relates to the technical field of waste oil recovery, in particular to a method for rapidly preparing fatty acids from waste oil. Background technique [0002] Waste oil is a general term for all kinds of waste oil, which can be roughly divided into three categories according to the source: one is the waste oil produced in the daily operation process of catering enterprises such as hotels and restaurants; the other is the waste oil produced by residents in the daily diet process; It is the waste oil produced in the production process of food and oil processing enterprises, such as soap stock, frying old oil, etc. [0003] Waste oil contains a variety of toxic substances, but due to its wide range of sources and low cost, some waste oil from the catering industry is bought by illegal traders, and after simple refining, it flows back into the dining table, which is extremely harmful to the human body. If it is discarded, it will pollute th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B3/00C11B3/10C11B3/16C11C1/00C11C1/06
CPCC11B3/001C11B3/008C11B3/10C11B3/16C11C1/002C11C1/06
Inventor 陈昌华
Owner 安庆华威油脂科技有限公司
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