Peanut Oli Waec Refining

Peanut oil refining main process: crude peanut oil---heater---static mixer---acid reactor---multi-effect mixer---heater---self-cleaning centrifuge---centrifugal mixing machine---washing centrifuge---heater---vacuum dryer---clay mixer---decoloring---filtration decoloring boiled oil tank---gas analysis apparatus---heater---deodorization---heater---filter---finished peanut oil... Waec Expo

Peanut oil refining operation main points:
1, acid degumming
Physical refining requirements degumming must be thoroughly, because the remaining phospholipids in the high temperature in the peanut oil is easy to decompose, affect the color of the oil, and lead to an odor.
Acid refining degumming precautions:

1), the amount of phosphoric acid to remain stable, and may not, shall not be less than 0.1% of the oil;
2), add water to moderate, multi-effect mixer of heating water mixed with centrifugal machine in front of the heating water, total amount between 7% and 8%.If adding water, the water after it less relevant, and vice versa.

2, decoloring
Physical refining bleaching clay content is chemical refining, generally according to the requirement of oil quality and product content, the range between 1% and 2.5%.Bleaching time, bleaching conditions, such as temperature, vacuum degree, and chemical refining.

3, deacidification and deodorization
In acid deodorization process, free fatty acid and low molecular mass of material under the condition of high temperature and high vacuum and direct steam distilled out.Physical refining deodorization temperature than conventional deodorization temperature is higher, generally between 250-260 degrees.
Acid deodorization precautions:
1), heat up quickly, in a relatively short period of time the oil temperature rise to the best temperature distillation, in order to achieve good deacidification effect.

2), peanut oil flow, balance oil deodorization and finished products to ensure the oil - oil heat transfer effect, the tower of stable temperature, to ensure that the deodorization effect.
3), strictly control the deodorization time, within the temperature range from 225 to 260, the residence time keep 1-1.5 hours, practice should be controlled only deodorization tower of the third layer temperature in 255-260,1, 2 layer temperature is below 255.

Popular posts from this blog

EKSU Proposed Academic Calendar 2020/2021 - 200l - 500l