A kind of processing separation method of oil and its application

A separation method and separation treatment technology, which are applied in the application, edible oil/fat, fat oil/fat refining, etc., can solve the problems of oil quality impact, complicated steps, secondary pollution, etc. Energy saving effect

Active Publication Date: 2020-11-10
OIL CROPS RES INST CHINESE ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the above-mentioned patents, the steps of alkali refining and ethanol extraction are relatively cumbersome, which have a certain impact on oil quality, high energy consumption and easy to cause secondary pollution; while the three-stage distillation preparation is only used as a technology to reduce the acid value. Failed to solve the existing color problem well

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A method for processing and separating camellia oil, specifically comprising the following steps:

[0027] (1) Pretreatment: select mature camellia oleifera seeds, remove impurities (removal of impurities such as silt, branches and leaves that may exist in the tea seeds) and shell them to obtain tea seed kernels, with a shell rate of 6% in the kernels, and adjust the tea seed kernels The moisture content in the medium is 6%;

[0028] (2) Virgin pressing: the tea seed kernels after shelling are subjected to cold pressing, the temperature of the pressing chamber is 90°C, and the temperature of the oil outlet is 40°C, and the pressed tea oil is filtered to remove impurities (remove the residue generated during the pressing process) etc.), to obtain virgin camellia oil, i.e. crude oil;

[0029] (3) Separation: The filtered camellia oil is separated by short-range molecular distillation (rotary scraper type), and the separation conditions are: the ratio of the sampling rate...

Embodiment 2

[0033] A method for processing and separating camellia oil, specifically comprising the following steps:

[0034] (1) Pretreatment: select mature camellia oleifera seeds, remove impurities and dehull to obtain tea seed kernels, with a shell rate of 6% in the kernels, and adjust the moisture content in the tea seed kernels to 4%;

[0035] (2) Virgin pressing: the tea seed kernels after shelling are subjected to cold pressing, the temperature of the pressing chamber is 80°C, and the oil outlet temperature is 35°C, and the pressed tea oil is filtered to remove impurities to obtain virgin tea oil, namely crude oil;

[0036] (3) Separation: The filtered camellia oil is separated by short-range molecular distillation, and the separation conditions are: the ratio of the sampling rate to the evaporation area is 40L / (h·m 2 ), the evaporation temperature is 135°C, the scraper speed is 180rad / min, and the condensation temperature is 15°C, and high boiling range tea oil and low boiling r...

Embodiment 3

[0040] A method for processing and separating camellia oil, specifically comprising the following steps:

[0041] (1) Pretreatment: select mature camellia oleifera seeds, remove impurities and dehull to obtain tea seed kernels, with a shell rate of 10% in the kernels, and adjust the moisture content in the tea seed kernels to 6%;

[0042] (2) Virgin pressing: the tea seed kernels after shelling are subjected to cold pressing, the temperature of the pressing chamber is 80°C, and the oil outlet temperature is 40°C, and the pressed tea oil is filtered to remove impurities to obtain virgin tea oil, namely crude oil;

[0043] (3) Separation: The filtered camellia oil is separated by short-range molecular distillation, and the separation conditions are: the ratio of the sampling rate to the evaporation area is 50L / (h·m 2 ), the evaporation temperature is 140°C, the scraper speed is 220rad / min, the condensation temperature is 10°C, and high boiling range tea oil and low boiling rang...

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Abstract

The present invention discloses a processing and separation method of oil. The method is characterized by comprising the following steps: step one, separation: crude oil is subjected to separation by short-range molecular distillation to obtain the oil with a high boiling range and the oil with a low boiling range; wherein the conditions of the separation treatment are as follows: the ratio of the injection rate to the evaporation area is in the range of 10-100 L / (hxm<2>), the evaporation temperature is between 100-200 DEG C, the scraper rate is in the range of 100-300 rad / min and the condensation temperature is between 0-35 DEG C; step two: refining: the obtained oil with the low boiling range is subjected to a deacidification treatment to become colorless, clear and transparent high quality cosmetic and medicinal oil; and the obtained oil with the high boiling range in the step 1 is subjected to a degumming treatment to become food grade oil. Compared with the existing main treatment methods of physical and chemical adsorption, etc., the molecular distillation is used to conduct the separation of colorless tea oil. The method maximally minimizes the influential factors of subsequent color recovery, reduces the refining steps, shortens the production cycles, reduces refining losses and develops the high-quality deep processing oil products and food grade oil as by-products.

Description

technical field [0001] The invention belongs to the field of agricultural product processing, and in particular relates to an oil processing and separation method and its application. Background technique [0002] Camellia oleifrea (Camellia oleifrea Abel) is a plant of the genus Camellia in the family Theaceae. It has a long history of cultivation. It originally originated in China and is one of the four major woody oil tree species in the world. Camellia oleifera in my country is mainly distributed in the south, such as Guangxi, Hunan, Zhejiang, Jiangxi and other regions, and currently has a relatively large scale and output in China. Camellia oil is a woody vegetable oil extracted from the seeds of Camellia oleifera. It is rich in unsaturated fatty acids, pure in color, rich in nutrition, and has a unique fragrance of camellia oil. It is a high-grade edible oil. The unsaturated fatty acid content in camellia oil accounts for 90% of the total fatty acid content, among whi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11B3/00C11B3/10C11B3/12C11B1/06A23D9/04A23D9/02
CPCA23D9/02A23D9/04C11B1/06C11B3/001C11B3/003C11B3/008C11B3/10C11B3/12
Inventor 黄凤洪邓乾春陈鹏臧茜茜黄庆德许继取郑明明孟露曦
Owner OIL CROPS RES INST CHINESE ACAD OF AGRI SCI
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