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Method and equipment for low-temperature short-time deodorization of plant oil

A low-temperature short-time, vegetable oil technology, applied in the direction of fat oil/fat refining, fat production, etc., can solve the problems of long deodorization time (2-3h, high deodorization temperature, etc., to reduce the amount of trans fatty acid produced, improve quality and quality, The effect of reducing the amount of excipients

Active Publication Date: 2012-01-11
SHANDONG BOHI INDUSTRY CO LTD +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the deodorization of domestic oil companies mostly uses disc-type plate towers, which generally have problems such as high deodorization temperature (250-260°C or even higher) and long deodorization time (2-3h), so that the trans fatty acid in deodorized oil reaches 2%- Between 4%, the loss of vitamin E and sterols is more than 70%

Method used

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  • Method and equipment for low-temperature short-time deodorization of plant oil
  • Method and equipment for low-temperature short-time deodorization of plant oil

Examples

Experimental program
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Effect test

Embodiment 1

[0025] Such as figure 1 As shown, the present invention mainly uses a deodorization tower with a tower body structure of plate tower-packed tower-plate tower as the main deodorization equipment, which is a deodorization tower with adjustable deodorization time.

[0026] The deodorization equipment of the present invention includes a deodorization tower 14, the tower body structure of which is a tray tower on the first and second floors, a packed tower on the third floor, and a tray tower on the fourth floor. It may further include a fifth-story tray column and a sixth-story tray column. Three-way valves 4 are arranged outside the fourth, fifth and sixth-layer tray towers of the deodorization tower 14 and connected to each other. Each tray of the deodorization tower 14 is provided with an overflow pipe 1 , a mammoth pump 2 , an emptying pipe 3 and a baffle 6 . The pipe diameter of the emptying pipe 3 and the overflow pipe 1 are DN80, and the diameter of the three-way valve pi...

Embodiment 2

[0033] The deodorizing equipment used is the same as in Example 1.

[0034] The decolorized rapeseed oil is deoxidized by degasser at 130°C, heated to 170°C by heat exchanger, enters the plate tower, and heated to 212°C under the condition of vacuum degree of 3.9 Torr, directly steam stripped for 15min, and heat Sensitive decolorization, then enter the packed tower at 212°C, stay for 5 minutes, then enter the plate tower, directly steam strip for 15 minutes, cool the oil to 45°C through a heat exchanger, and then perform fine filtration to obtain deodorized oil.

[0035] Detect the deodorized oil index, the results are as follows, trans fatty acid content: 0.33%, vitamin E deodorization loss rate: 4.8%, sterol deodorization loss rate: 7.6%, free fatty acid content in deodorized oil is 0.032%, color: Y10R0.8 .

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Abstract

The invention provides a method and equipment for low-temperature short-time deodorization of plant oil. The method is characterized in that a plate-filling-plate type complex tower is utilized as a deodorization device; an optimal deodorization technology and parameters are confirmed through a research of influences of a deodorization temperature, time and direct steam consumption on vitamin E and sterol loss, trans-fatty acid generation amounts and first-grade oil quality; and the method can reduce trans-fatty acid generation amounts and the loss of vitamin E and sterols in oil on condition that the quality of the oil is guaranteed. Through the method, a deodorized plant oil product with low trans-fatty acid content below 1.0% and low vitamin E and sterol loss rates (wherein a vitamin E loss rate is below 12% and a sterol loss rate is below 17%) is obtained.

Description

technical field [0001] The invention relates to the field of vegetable oil deodorization, in particular to a low-temperature short-time deodorization method and equipment for vegetable oil. Background technique [0002] Vitamin E, also known as tocopherol, mainly has four isomers: α, β, γ, and δ. Vitamin E can provide hydrogen to active free radicals, thereby interrupting the free radical chain reaction initiated by active oxygen and playing an anti-oxidative effect, so it is a natural antioxidant in oils. In addition, tocopherol also has certain medical and health care functions, which can ensure the normal operation of human body functions, prevent human aging and arteriosclerosis, and reduce the incidence of cardiovascular diseases. Therefore, keeping the natural vitamin E in the oil to the greatest extent and reducing the loss of tocopherol during the refining process is very beneficial to both the oxidation stability and nutrition of the oil. [0003] Phytosterols bel...

Claims

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Application Information

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IPC IPC(8): C11B3/00C11B3/14
Inventor 白长军王兴国刘元法李玉玲李晓兵彭亮白红超
Owner SHANDONG BOHI INDUSTRY CO LTD
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