Process of vegetable oil refinery

Oil refinery, vegetable oil refinery, also vegetable oil refinery equipment or oil refinery equipment. Due to the different growth, storage and processing conditions of different oil seeds, the crude oil contain varying amounts of non-glyceride components. There are various impurities affect the taste or smell of oil, or not conducive to oil storage, there are some hazards to human health, and therefore must be refined to remove.

The “refinery” of vegetable oil refinery contains one or more of the following processes: distillation, by heating to evaporate the solvent that is introduced from solvent extraction process. Unglued, let hot water wash oil, and stir and stand to precipitate a gum and protein. Neutralization, or oxygen, with sodium hydroxide or sodium carbonate processing oil, remove free fatty acids, phospholipids, pigments and waxes. Bleaching, removing ugly color, with diatomaceous earth, activated carbon, activated earth to remove the bad color. Dewaxing, or antifreeze, to improve the transparency of the oil, the temperature was lowered to remove the precipitated solids. Deodorization, through high temperature and high pressure steam evaporate unstable compounds that may cause unusual smell and taste. Corrosion prevention, add preservatives in order to facilitate oil remained stable.

The more water the dispersed colloidal cohesion, critical temperature is also higher. High temperature, low viscosity of oils, after hydration the separation effect on oil foot of oil fats and phospholipids is good; high temperature, strong water absorption capacity of phospholipids. More water, more fast of hydration speed, more fully of phospholipids inflated.

If you want to learn more, welcome to inquiry on vegetable oil refinery.