HUATAI Rice Bran Oil Extraction Technology | Rice bran oil production process

Rice bran oil stands out as a healthy cooking oil due to its rich nutritional profile, and the extraction workshop plays a pivotal role in turning rice bran into this golden, transparent oil. The sophisticated processes involved ensure the production of high-quality rice bran oil that meets industry standards.

The journey begins in the preprocessing workshop, where rice bran undergoes cleaning using specialized equipment like bran separation screens. This step delivers clean rice bran to the softening and conditioning pot, where its temperature and moisture are regulated for efficient extraction. After conditioning, the rice bran is processed in Huatai’s specialized expander. This equipment disrupts the cellular structure of rice bran, converting its dense form into a loose, porous one. The fine rice bran powder is expanded into columnar shapes, improving its permeability and reducing fatty acid formation, which is crucial for producing high-quality oil. However, expanded rice bran has high moisture content, making it unsuitable for storage or extraction. A plate dryer addresses this by reducing the moisture content, preparing the bran for the core extraction stage.

The extraction process focuses on isolating oils from rice bran using organic solvents. Common solvents like No. 6 light gasoline dissolve the oil effectively. Rice bran is placed into material grids within the extractor, where the solvent interacts with the bran through spraying and soaking methods. Similar to a sponge absorbing water, the solvent gradually extracts oil, forming miscella. Countercurrent extraction ensures thorough oil extraction by reducing miscella concentration across multiple cycles, culminating in pure solvent extraction.

The obtained miscella undergoes treatment to separate oil and solvent. By leveraging differences in their boiling points, operations like evaporation and stripping are employed. The solvent is heated, vaporized, and separated from the oil, resulting in crude rice bran oil. Meanwhile, rice bran cakes left after extraction contain traces of solvent, which must be removed before reuse. Using the wet cake desolventizing system, the solvent is eliminated through evaporation and stripping. The recovered solvent is recycled, reducing production costs. The desolventized rice bran cake can then be utilized as raw material for products like animal feed, promoting resourceful utilization.

An integral component of the workshop is the solvent recovery system, which recaptures the organic solvent used during extraction. This minimizes solvent waste, lowers production costs, and significantly reduces environmental pollution, aligning with sustainable development principles. Huatai Group ensures that the entire process adheres to safety production standards, contributing to green and efficient production practices.

Huatai Group stands as a leader in rice bran extraction technology, constantly innovating to meet customer demands for premium equipment. From precise preprocessing of raw materials to energy-efficient upgrades in extraction and recovery systems, Huatai’s advancements showcase its dedication to quality and sustainability. These efforts not only cater to diverse customer needs but also drive the global grain and oil industry toward greener and more efficient development, cementing Huatai’s position as a key force in the sector's progress.