Rice bran oil production line plan

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Rice bran oil
 

As an edible oil with high nutritional value and unique flavor, the market demand for rice bran oil is gradually increasing. This rice bran oil production line project aims to efficiently utilize rice bran resources and produce rice bran oil products that meet international standards and are of excellent quality. The project's goal is to build a modern production line with a high degree of automation, stable production capacity, energy conservation, and environmental friendliness, to meet the market's demand for high - quality rice bran oil and enhance the enterprise's competitiveness in the oil market.
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Rice bran pretreatment
 

Rice bran contains lipase with high activity. Under suitable conditions, it can rapidly decompose oils and fats, leading to rancidity. To inactivate the lipase activity, the following methods can be adopted: steam heating method, extrusion puffing method, and microwave treatment method.

Crude oil refining
  • 01
    Degumming
    ——
    Transfer the crude oil to the pre - heating tank and heat it to 50 - 70℃ to create suitable temperature conditions for the degumming reaction. Slowly add an appropriate amount of phosphoric acid solution to the crude oil. The phosphoric acid reacts with colloidal impurities such as phospholipids in the crude oil, causing them to agglomerate into larger particles. Then send the crude oil to a centrifuge. Under the action of the centrifugal force generated by high - speed rotation, the gum - like substances are separated from the oil, and degummed oil is obtained.
  • 02
    Deacidification
    ——
    Based on the acid value of the crude oil, accurately calculate and prepare a sodium hydroxide solution. Heat the degummed oil to 60 - 80°C. Under stirring conditions, slowly add the sodium hydroxide solution so that the lye reacts with free fatty acids through a neutralization reaction to form soapstock. Separate the soapstock from the oil by a centrifuge to reduce the acid value of the oil and obtain the alkali - refined oil.
  • 03
    Washing、Drying
    ——
    Feed the washed oil into a vacuum dryer. Under a vacuum degree of - 0.08MPa to - 0.09MPa, indirectly heat the oil to raise its temperature to 100 - 110℃. As a result, the water evaporates rapidly, reducing the water content in the oil to less than 0.1%, and thus obtaining the dried oil.
  • 04
    Decolorization
    ——
    Transfer the dried oil to the decolorization tank. Add an appropriate amount of activated clay or activated carbon. Under a vacuum condition at 100 - 120°C, the adsorbent is brought into full contact with the oil to adsorb pigments, off -lavor substances and residual impurities in the oil. After the adsorption reaction is completed, separate the adsorbent from the oil through afilter, obtaining the decolorized oil.
  • 05
    Deodorization
    ——
    Heat the decolorized oil to 230 - 260°C to provide a high - temperature condition for the deodorization reaction. Under a high vacuum degree (below - 0.095MPa), introduce direct steam, so that volatile off - flavor substances and free fatty acids in the oil volatilize and are removed along with the steam, obtaining refined rice bran oil. After deodorization, the oil is cooled to a suitable temperature for storage or filling, generally 40 - 50°C, by a cooler, and then transferred to a storage tank for storage.

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Our company specializes in the R&D, production and service of oil pressing machinery, and is a core service provider in the field of oil production equipment. We deeply focus on the processing needs of vegetable and animal oils, and have built a diversified product system covering screw oil presses, low-temperature cold pressing equipment, negative-pressure melting equipment and palm fruit-specific production lines. We also provide full-process supporting equipment for pretreatment, refining and packaging, which is suitable for all scenarios from family workshops to large-scale factories.
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