Rice Bran Oil Processing Plant

First off, the rice bran needs a good cleaning. We can remove broken rice and other impurities in the rice bran through air separation and screening. In addition, the rice bran needs to be preheated. Put the rice bran into a vertical multi-layer cooker and add water for steaming and frying. The water content needs to reach 25%, the steaming and frying pressure is 490~686.6kPa. The final temperature is 130℃, and the moisture is 4%~5%.

After pretreatment, using an extruder expand rice bran. The rice bran reaches a high temperature and high-pressure state in a short time. Then, when the pressure suddenly drops, the water evaporates rapidly, and the rice bran expands rapidly, forming a loose, porous structure. This process helps to destroy the cell structure of the rice bran, turning the oil from a bound state to a free state, and at the same time inactivates enzyme substances such as lipase, thereby stabilizing the quality of the rice bran.

Then, the expanded rice bran into an extraction machine where using organic solvents to create a blended oil. They dissolve the oil in the rice bran particles, making it easier to extract. There are three types of rice bran extractors: drag chain extractor, loop type extractor, and rotocel extractor. Among them, the loop extractor has the best extraction effect. The material can be turned from the bending section into the lower layer, making the material extraction more uniform and thorough. The material layer is shallow, the wet meal contains less solvent, and the residual oil can be less than 1%. (Learn more: rice bran oil solvent extraction >>)

Huatai rice bran oil refining process separates degreasing and dewaxing, which improves the utilization rate of bran wax and bran fat. The production process produces less wastewater, and while obtaining high-quality oil, it has little environmental pollution and low energy consumption. Huatai adopts a fully continuous refining process that combines advanced physics and chemistry. The refining rate is 1%~2% higher than the intermittent refining process and nearly 6% higher than chemical refining.