People popular soybean crude oil refining machine

People popular soybean crude oil refining machine 

   The crude oil obtained either from expellers or solvent extraction plant contains impurities, which must be removed to make the oil edible, more palatable and stable against rancidity upon storage. The process of removing these impurities is called refining.

soybean crude oil refining machine

1)chemical refining 2) physical refining 3)chemical-physical refining

soybean crude oil refining machine

(1). Refining pot: used to P-acid de-gumming, alkali refining de-acid and 

water rinsing.

(2).De-color pot: used to remove off pigments, bleaching oils and grease de-hydrate. 

(3).De-odor pot: used to remove off oils odor, foreign smells (stainless made) Heat transfer oil stove: supply each device production needing heat energy, temperature reach above 280 ° C.

(4).Steam generator: produce the needing steam for de-odoring and distillation. 

(5).Vacuum pump: supply needing vacuum for dehydrate, de-color, de-odor. Vacuum degree can

 reach above 755mmHg.

(6).Press filter: filter clay, filter out clear oil.

(7).Air compressor: blow dry bleached clay, blow empty the leftover oil in  

soybean crude oil refining machine

Step 1.Degumming with water to remove the easily hydratable phospholipids and metals.

Step 2.Addition of a small amount of phosphoric or citric acid to convert the remaining non-hydralable phospholipids (Ca, Mg salts) into hydratable phospholipids.

Step 3.Neutralising of the free fatty acids with a slight excess of sodium hydroxide solution, followed by the washing out of soaps and hydrated phospholipids.

Step 4.Bleaching with natural or acid-activated clay minerals to adsorb colouring components and to decompose hydroperoxides.

Step 5.Deodorising to remove volatile components, mainly aldehydes and ketones, with low threshold values for detection by taste or smell. Deodorisation is essentially a steam distillation process carried out at low pressures (2-6 mbar) and elevated temperatures (180-220°C).  

soybean crude oil refining machine