There are four main sections to make rice bran oil plant: rice bran pretreatment section, rice bran oil extraction section, rice bran oil refinery section and rice bran oil dewaxing section. The flow chart of rice bran oil processing plant is as following:
Raw material (rice bran) →magnetic separation →floury product separation →quenching and tempering →puffing(extrusion machine)→drying and cooling →solvent extraction plant →refining plant →dewaxing plant →high quality refined oil
The brief introduction of rice bran oil processing plants:
a.Rice bran oil pretreatment plant makes the rice bran into pellet for easy and max oil yield.
b. Transporting pretreated rice bran into solvent extraction plant, using the solvent (normal hexane) to absorb the oil from rice bran, and then the machines separate the solvent from the oil, the solvent used for recycling and the crude rice bran oil goes into refining plant. After extraction, the resid oil in rice bran can be lower than 0.8%.
c. Crude rice bran oil refining
d. Dewaxing for high quality oil.