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Novel dry-method degumming method for abandoned oil

A degumming method, a new technology, applied in the direction of fat oil/fat refining, fat production, etc., can solve the problems of emulsification, hygroscopic hydrolysis, bumping, etc., and achieve the effect of improving oil quality, simple operating conditions, and saving water resources

Inactive Publication Date: 2011-05-25
湖南欣林生物油脂工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, waste oil contains a large amount of colloid. If it is not removed, it will cause many harmful factors: affecting the stability of oil, easy to absorb moisture and hydrolyze; affecting the refining effect of raw material oil, causing emulsification, increasing the amount of decolorizing agent, and returning to color after deodorization; Application of oil products, foaming and bumping during distillation and heating, etc.

Method used

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  • Novel dry-method degumming method for abandoned oil
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  • Novel dry-method degumming method for abandoned oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 500Kg of crude waste oil that has passed through the fence is pumped into the reaction kettle through the pipeline, heated to 110 ° C ~ 115 ° C, the vacuum degree is controlled at 0.090 MPa, and the stirring speed is 105 r / min. After 40 minutes, there is no bumping phenomenon of the material, and there is no phenomenon of oil on the surface of the oil layer. Bubbles are generated. Cool down to 100°C, add 1.0kg of acid reagent in oil, reduce the stirring speed after adding acid, control the stirring speed at 50r / min, the reaction temperature is 100°C, and the reaction time is 70min. After completion, 5Kg of adsorbent was added, the vacuum degree was 0.090Mpa, and the temperature was 120°C under continuous stirring conditions for 75min, and the stirring speed was controlled at 60r / min. Slightly lower the temperature to 100°C, pass through a filter press, and enter the next reaction kettle. The raw material quality after degumming is as follows:

[0026]

Embodiment 2

[0032] 2000Kg of crude waste oil that has passed through the fence is pumped into the reaction kettle through the pipeline, heated to 110 ° C ~ 115 ° C, the vacuum degree is controlled at 0.090 MPa, the stirring speed is 110 r / min, and there is no bumping phenomenon of the material after 40 minutes. Bubbles are generated. Cool down to 100°C, add 1.0kg of acid reagent in oil, reduce the stirring speed after adding acid, control the stirring speed at 60r / min, the reaction temperature is 100°C, and the reaction time is 55min. After completion, 5Kg of adsorbent was added, the vacuum degree was 0.090Mpa, and the temperature was 120°C under continuous stirring for 80 minutes, and the stirring speed was controlled at 60r / min. Slightly lower the temperature to 100°C, pass through a filter press, and enter the next reaction kettle. The raw material quality after degumming is as follows:

[0033]

Embodiment 3

[0035] 1000Kg of crude waste oil that has passed through the fence is pumped into the reaction kettle through the pipeline, heated to 110℃~115℃, the vacuum degree is controlled at 0.090MPa, the stirring speed is 105r / min, after 40min the material has no bumping phenomenon, and the surface of the oil layer has no Bubbles are generated. Cool down to 100°C, add 1.0kg of acid reagent in oil, reduce the stirring speed after adding acid, control the stirring speed at 55r / min, the reaction temperature is 100°C, and the reaction time is 85min. After completion, 5Kg of adsorbent was added, the vacuum degree was 0.090Mpa, and the temperature was 120°C under the condition of continuous stirring for 50min, and the stirring speed was controlled at 60r / min. Slightly lower the temperature to 100°C, pass through a filter press, and enter the next reaction kettle. The raw material quality after degumming is as follows:

[0036]

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Abstract

The invention mainly aims to solve the problems caused by degumming in the process of processing abandoned oil serving as raw materials. By dry-method degumming, the series of problems can be solved effectively. The method comprises the following steps of: adding a certain amount of acid (strong phosphoric acid: citric acid is 2:1) into a material system, and reacting at the temperature of 100 and 115 DEG C for 55 to 85 minutes, so that phospholipid in the abandoned oil serving as the raw materials is flocculated to form large granular flocculate; stirring a mixture, which serves as an adsorbent, of quantitative silica gel and carclazyte continuously for 50 and 80 minutes under the vacuum degree of between 0.080 and 0.098 Mpa, wherein the addition of the adsorbent is between 0.5 and 2.0 percent; and cooling the integral material system to a certain extent, filtering the hot material system, and filtering out colloid and part of pigments by adsorption. The process has a simple operational condition, does not generate oil foot, is less in pollution, can improve the yield of products by over 2 percent, achieves the discoloring effect while degumming, and improves the quality of oils obviously.

Description

technical field [0001] The invention belongs to the field of biodiesel raw material pretreatment processing, and in particular relates to a dry degumming method for waste oil. Background technique [0002] At present, the shortage of raw materials is still the primary factor limiting the price and large-scale production of biodiesel. The production of biodiesel from gutter oil, hog oil, acidified oil and other waste oils can not only prevent waste oil from returning to the dining table, but also turn waste into treasure, and solve the problem of waste oil use in a real sense. However, waste oil contains a large amount of colloid. If it is not removed, it will cause many harmful factors: affecting the stability of oil, easy to absorb moisture and hydrolyze; affecting the refining effect of raw material oil, causing emulsification, increasing the amount of decolorizing agent, and returning to color after deodorization; Application of oil products, foaming and bumping during d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B3/02C11B3/00C11B3/10
Inventor 李昌珠肖志红张爱华刘汝宽李培旺孟凡勇
Owner 湖南欣林生物油脂工程技术有限公司
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