Production method and system of deacidification rice bran oil

A production method and technology of a production system, applied in the field of vegetable oil refining, can solve the problems of harmful substances, low product refining rate, large lye consumption, etc., achieve huge economic and social benefits, improve processing efficiency, and simple equipment operation

Active Publication Date: 2012-08-01
辽宁五峰农业科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Alkali refining and deacidification method is suitable for rice bran oil with low free fatty acid content. Rice bran oil with high free fatty acid content needs multiple alkali refining, consumes a lot of lye, increases cost, and produces a lot of waste water; the product refining rate is low, oryzanol Large loss, deep color
The distillation deacidification method has strict requirements on the pre-treatment of oils. Rice bran oil with high free fatty acid content needs repeated high-temperature and high-pressure distillation, which consumes a lot of heat and electricity, and the production cost is high. Vitamin E is los

Method used

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  • Production method and system of deacidification rice bran oil
  • Production method and system of deacidification rice bran oil
  • Production method and system of deacidification rice bran oil

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Experimental program
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Effect test

Embodiment 1

[0030] Such as figure 1 As shown, the rice bran oil deacidification production system includes a crude oil storage tank 1, a heat exchanger 3 connected to the crude oil storage tank 1 through pipelines, and the pipeline between the crude oil storage tank 1 and the heat exchanger 3 is provided with Pump I2, a ball valve is provided on the pipeline between crude oil storage tank 1 and pump I2, plate and frame filter 4 connected to heat exchanger 3, filter oil storage tank 5 connected to plate and frame filter 4, and filter The storage tank 5 is connected to the cylindrical centrifugal extractor 7 through pipelines. The cylindrical centrifugal extractor 7 is formed by connecting at least three monomer extractors in series. Extractor Ⅰ701, cylinder centrifugal extractor Ⅱ702, cylinder centrifugal extractor Ⅲ703, each cylinder centrifugal extractor is equipped with oil inlet A, ethanol inlet B, outlet IC, outlet IID, the former outlet IC and the latter The first-stage oil inlet A ...

Embodiment 2

[0041] The concrete steps of the production method of this rice bran oil deacidification are as follows:

[0042] (1) Rice bran oil filtration

[0043] Put the rice bran oil with a free fatty acid mass content of 25% into the crude oil storage tank 1, send the rice bran oil to the heat exchanger 3 through the pump I2 to raise the temperature of the rice bran oil to 40°C, pass through the plate and frame filter 4 (filter medium The fineness is 100 mesh. At the beginning of filtration, the rice bran oil flows by itself. When the self-flow is not smooth, pressurize and filter. When the pressure in the filter reaches 0.3MPa, carry out slag unloading and cleaning.) After filtering, the impurity content in the rice bran oil is 0.2%, enter the filter oil storage tank 5;

[0044] (2) Extraction and deacidification

[0045] Use the pump II6 to transfer the filtered rice bran oil in the filtered oil storage tank 5 into the cylindrical centrifugal extractor I701 through the first-stage...

Embodiment 3

[0051] The concrete steps of the production method of this rice bran oil deacidification are as follows:

[0052] (1) Rice bran oil filtration

[0053] Put the rice bran oil with a free fatty acid mass content of 30% into the crude oil storage tank 1, send the rice bran oil to the heat exchanger 3 through the pump I2 to raise the temperature of the rice bran oil to 40°C, pass through the plate and frame filter 4 (filter medium The fineness is 90 mesh. At the beginning of filtration, the rice bran oil flows by itself. When the self-flow is not smooth, pressurize and filter. When the pressure in the filter reaches 0.3MPa, carry out slag unloading and cleaning.) After filtering, the impurity content in the rice bran oil is 0.17%, enter the filter oil storage tank 5;

[0054] (2) Extraction and deacidification

[0055] Use the pump II6 to transfer the filtered rice bran oil in the filtered oil storage tank 5 into the cylindrical centrifugal extractor I701 through the first-stage...

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Abstract

The invention relates to a production method and a system of deacidification rice bran oil. The production method comprises the following steps of: feeding rice bran oil into a heat exchanger, warming, and filtering through a frame filter; feeding the filtered rice bran oil into a cylinder centrifugal extractor, extracting, and separating the rice bran oil from fatty acid to obtain the deacidification rice bran oil and mixed liquor of the fatty acid and ethanol; and feeding the mixed liquor of the fatty acid and the ethanol into an evaporator, separating, feeding ethanol steam into a condenser, condensing the ethanol steam to be liquid, and recycling the ethanol steam as an extracting agent. The system comprises a crude oil storage tank, a pump I, the heat exchanger, the frame filter, a filtered oil storage tank, a pump II, the cylinder centrifugal extractor, a deacidification oil storage tank, a fatty acid and ethanol mixing liquor storage tank, a pump III, the evaporator, a free fatty acid storage tank, the condenser and an ethanol recovery tank. The whole production process is non-toxic and environmental-friendly, the extracting agent ethanol can be recovered and recycled, the production cost is low, the operation process is continuous, the equipment is simple to operate, the operation cost is low, and scale production can be realized.

Description

technical field [0001] The invention belongs to the field of vegetable oil refining, in particular to a production method and system of deacidified rice bran oil. Background technique [0002] Rice bran oil is an oil made from rice bran, a by-product of rice processing. The annual output of rice in my country is 200 million tons, and the by-product of rice bran processing is 20 million tons, which can produce 3 million tons of rice bran oil. It is widely used in food, medicine, chemical industry, food additives, etc. field. Edible rice bran oil mainly contains oleic acid and linoleic acid, and also contains oryzanol, glutaric acid and vitamin E, which can lower cholesterol, prevent cardiovascular diseases, and treat nervous system diseases. It is a nutritional and health-care edible oil. [0003] During rice processing, the rice bran leaves the parent rice and contacts with oxygen. Under the action of lipolytic enzyme, the free fatty acid content of rice bran crude oil incre...

Claims

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Application Information

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IPC IPC(8): C11B3/00C11C1/02
Inventor 马殿成董立祥
Owner 辽宁五峰农业科技股份有限公司
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