Rice bran oil dewaxing process

A rice bran oil and process technology, which is applied in the field of advanced products, can solve the problems of high labor intensity and slow bag filtration rate, etc.

Inactive Publication Date: 2014-05-07
BEIJING ZHONGTIAN JINGU GRAIN OIL ENG TECH
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  • Abstract
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  • Claims
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Problems solved by technology

Some enterprises can also achieve good dewaxing effect by using cloth bag filtration...

Method used

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  • Rice bran oil dewaxing process

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Embodiment Construction

[0006] For the products involved in this project, the crude oil leached from the crude oil tank 11 is injected into the No. 1 tube heat exchanger 12 and the No. 2 tube heat exchanger 13 through the oil pump for heating; the bran wax in the crude oil is melted, and then Enter No. 1 fine filter 14 and No. 2 fine filter 15 to filter solid impurities. The filtered clear oil is injected into the junction and crystal growth tanks 16, 17, 18, 19, 20, 21, and 22 respectively, and the refrigerant liquid in the refrigerant tank 1 is poured into the crystallization tank through the refrigerator 2 to reduce the heat of the cooking oil in the crystallization tank. Replace it, so that the edible oil temperature in the crystallization tank is reduced to the temperature of crystallization. When the external temperature is low, the heat of the edible oil in the crystallization tank can be directly replaced by the cooling tower 24 and the clear water circulation pool 25, without starting the re...

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Abstract

The present invention discloses a rice bran oil dewaxing process, wherein the rice bran oil has the high wax content, and a dewaxing and degreasing double-stage winterization process is adopted. According to the process, the dewaxing process temperature is about 16-18 DEG C, and the degreasing process temperature is about 5 DEG C, such that the bran wax has the low oil content; after crude oil is heated, the solid impurity is removed through filtration with a fine filter, and the obtained material enters a crystallization tank to carry out crystallization and crystal cultivating; and the heat of the edible oil is replaced through a refrigerant with a freezer so as to achieve solid-liquid separation of the bran wax crystal and the edible oil, the high position tank high position pressure difference is adopted so as not to break the crystal grains, and the press-in thermal unloading type filter is adopted to carry out solid-liquid separation so as to achieve the large-scale production mode.

Description

Technical field: [0001] The product of the present invention relates to the technical field of removing bran wax in rice bran oil in the winterization process of edible oil. Background technique: [0002] Conventional dewaxing is a dewaxing method that relies solely on freezing and crystallization, and then uses mechanical methods to separate oil and wax without adding any auxiliary agents and auxiliary means. Equipment such as pressure filtration, vacuum filtration and centrifugal separation are used for separation. Because the dewaxing temperature is low, the viscosity is high, and the separation is relatively difficult, so for rice bran oil with high wax content, two crystallization filtration methods are usually used, that is, the deodorized oil is fully cooled to 30°C in a cooling tank, and then cooled and crystallized. The time is 24 hours, and the first filter is carried out with an oil filter to remove most of the wax, and the pressure of the filter is not more than...

Claims

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Application Information

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IPC IPC(8): C11B3/00A23D9/04
Inventor 李宁
Owner BEIJING ZHONGTIAN JINGU GRAIN OIL ENG TECH
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