cooking oil processing technology

What is the rice bran oil solvent extraction process?

Rice bran oil extraction process is a type of safe and technology advanced cooking oil processing craft on basis of chemical extraction theory. The rice bran oil extraction process involves a series of steps: rice bran oil extraction, wet meal desolventization, mixed oil evaporation and stripping and solvent cooling and recycling. Generally, by using the extraction way, the oil residue will be lower than 1%. Next, Henan Glory Company will introduce the rice bran oil solvent extraction process for you.

Henan Glory Company warmly reminds that the oil content of rice bran is very low, about 10−23%. Almost all the rice bran oil factory adopt puffing &solvent extraction method to extract oil, achieving large output and high economic benefits. Its oil residual rate is less than 1%, which can maximize the interests of producers. Therefore, the rice bran should be pre-treated prior to solvent extraction process , which including cleaning , moisture conditioning, puffing and drying. Then rice bran cake will be sent to solvent extraction workshop.

rice bran oil extraction machineRice bran oil extraction production

Rice bran oil solvent extraction process flow chart:

Step 1 Rice bran oil extraction

The rice bran cake is fed by the screw conveyor into the loop type extractor , where it is sprayed and soaked with the solvent n-hexane to obtain two products: wet meal and mixed oil.

Step2 Wet meal desolventization

Wet meal is a mixture of solvent and meal. The wet meal will be processed in D.T.D.C system to remove the solvent in the meal and get dry meal, which can be sold to as animal feed.

Step 3 Mixed oil evaporation and stripping

Using the different boiling points of oils and solvents, the mixed oil will be processed in 1st and 2nd evaporation machine and stripping tower. And the solvent and the rice bran oil will be separated.

Step 4 Solvent cooling and recycling

Solvent from the D.T.D.C system and 1st and 2nd evaporation machine and stripping tower will be cooled and recycled. And reuse in the next rice bran oil extraction process.

rice bran oil extraction machineRice bran oil solvent extraction process

This is the introduction about rice bran oil solvent extraction process. If you want to set up a rice bran oil processing plant, welcome to contact Henan Glory Company! We will provide you high quality rice bran oil extraction machine and best services.

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