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Method for preparing vegetable oil through physical adsorption

A physical adsorption, vegetable oil technology, applied in the production of fat oil/fat, refining of fat oil/fat, fat production, etc., can solve the problems of residual harmful components, high energy consumption, high refining consumption, and achieve small loss of oil nutrients and simple operation. Convenience and low energy consumption

Active Publication Date: 2015-06-03
INST OF OIL CROPS RES CHINESE ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existence of colloidal substances, free fatty acids and water molecules are the main factors affecting the quality and stability of oils and fats. The traditional refining technology is mainly chemical refining. The degumming techniques commonly used in industry include hydration degumming, acid degumming, etc., commonly used The deacidification technology is mainly alkali refining deacidification. Although vegetable oil can reach edible standards through chemical refining, these methods have certain defects, such as high energy consumption, high refining consumption, low quality, and residual harmful components, which are difficult to meet the needs of enterprises. and consumer demand for green products and environmentally friendly technologies

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Select fresh rapeseeds, remove impurities by using circulating air separator, flat rotary screen, gravity classifier and magnetic separator; transport rapeseeds into airtight containers, feed water vapor, and continue to stir for 30 minutes at a stirring speed of 30 rpm min, the water content of the rapeseed after conditioning is 7.0%, and the temperature of the material is controlled at 40°C; the rapeseed is transported into a hydraulic oil press for pressing to obtain pressed rapeseed crude oil; the sepiolite degumming agent is mixed with 0.5% The addition amount of (mass ratio) is added in crude oil, and stirring speed is 60 rev / min, and degumming time 60min, and degumming temperature is 5 ℃, obtains degumming oil; With 0.5% (mass ratio) addition amount of sepiolite deacidification agent Add in the degummed oil, the stirring speed is 60 rev / min, the deacidification time is 60min, and the deacidification temperature is 5°C to obtain the deacidified oil; the sepiolite d...

Embodiment 2

[0047] Select fresh sesame seeds, remove impurities by using circulating wind separator, plane rotary sieve, gravity classifier and magnetic separator; transport sesame seeds into airtight container, feed water vapor, keep stirring for 40min, stirring rate is 100rpm, The water content of the sesame after conditioning is 8.0%, and the temperature of the material is controlled at 50°C; the sesame is transported into a single-screw oil press to obtain pressed sesame oil; the sepiolite degumming agent is added with 2% (mass ratio) Add a large amount of crude oil, the stirring speed is 100 rpm, the degumming time is 50min, and the degumming temperature is 20°C to obtain degummed oil; the sepiolite deacidifying agent is added in the degummed oil with 2% (mass ratio) addition, and stirred The speed is 100 rpm, the deacidification time is 50min, and the deacidification temperature is 20°C to obtain deacidified oil; the sepiolite decolorizer is added to the deacidified oil in an amount ...

Embodiment 3

[0054] Select fresh Camellia oleifera seeds, and remove impurities by using a circulating air separator, a flat rotary sieve, a gravity classifier and a magnetic separator; transport the Camellia oleifera seeds into an airtight container, inject water vapor, and continue stirring for 50 minutes at a stirring rate of 65 rpm min, the water content of camellia seed after conditioning is 9.0%, and the temperature of the material is controlled at 75° C.; the camellia seed is transported into a double-screw oil press to obtain the pressed camellia seed hair oil; the sepiolite degumming agent is added with 3% ( (mass ratio) is added in crude oil, the stirring rate is 150 rpm, the degumming time is 40min, and the degumming temperature is 35°C to obtain degummed oil; the sepiolite deacidification agent is added in an amount of 3% (mass ratio) In the degummed oil, the stirring rate is 150 rpm, the deacidification time is 40min, and the deacidification temperature is 35°C to obtain the de...

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Abstract

The invention discloses a method for preparing vegetable oil through physical adsorption. The method comprises the following steps: performing clearing, conditioning and pressing to obtain a press cake and crude oil; performing degumming treatment on the crude oil with a sepiolite degumming agent, performing deacidifying treatment on the degummed oil with a sepiolite deacidifying agent, performing decoloring treatment on the deacidified oil with a sepiolite decoloring agent, performing dehydrating treatment on the decolored oil with a sepiolite dehydrating agent, and separating to obtain dehydrated oil; and filtering and sealing and storing the finished product of vegetable oil, wherein an organic solvent is fed into the used sepiolite for circular treatment, a filter cake is obtained by filtering and then calcined and ground and crushed, and the crushing particle size is 100-200 meshes; and the sepiolite can be reused after drying. Food-grade sepiolite is adopted to perform physical adsorption refining treatment on the vegetable oil, the operation is easy and convenient, the energy consumption and the loss are low, few nutrients of grease are lost, the adsorption material can be recycled, and the edible standard of vegetable oil can be reached.

Description

technical field [0001] The invention belongs to the technical field of oil processing, and in particular relates to a method for preparing vegetable oil by physical adsorption. Background technique [0002] At present, the refining process of vegetable oil mainly includes degumming, deacidification, decolorization, deodorization, dewaxing and other processes. The existence of colloidal substances, free fatty acids and water molecules are the main factors affecting the quality and stability of oils and fats, while the traditional refining technology is mainly chemical refining, and the degumming techniques commonly used in industry include hydration degumming, acid degumming, etc., commonly used The deacidification technology is mainly alkali refining deacidification. Although vegetable oil can reach edible standards through chemical refining, these methods have certain defects, such as high energy consumption, high refining consumption, low quality, and residual harmful comp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B3/10C11B3/16C11B1/04C11B1/06
CPCC11B1/04C11B1/06C11B3/10C11B3/16
Inventor 黄凤洪刘昌盛李文林尹红红杨湄邓乾春周琦黄庆德钮琰星郭萍梅万楚筠郑明明许继取
Owner INST OF OIL CROPS RES CHINESE ACAD OF AGRI SCI
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