After the rapeseed(canola) pressed and solvent extraction, the crude rapeseed(canola seed) oil will be transported to refining plant. Three different refining technology can be used in crude rapeseed oil refinery.
First, Continuous refining process
This process continuously performs four refining sections,including degumming and deacidification, decolorization, deodorization, dewaxing . The process has the advantages of high refining rate, low loss and high product quality.It is Suitable for large and medium refining workshop.
Second, Semi continuous refining process
It is a mixed process of batch production process and continuous production process. The refining rate is higher than that of batch production process. It is Suitable for medium and small oil factory.
Third, Batch refining process
Each refined sections operate intermittently.The process has the advantages of simple equipment,less investment,flexible process.It allow to be replaced raw oil varieties at any time.It is Applicable to small oil refineries or oil refineries with frequent oil.
Reference pictures of canola seed(rapeseed) oil refining plant.
Specification of crude degummed rapeseed oil:
|Smell and taste||The original smell and taste of edible oil|
|Moisture and volatile matter (%) ≤||0.20|
|Insoluble impurities (%) ≤||0.20|
|Acid value (mgKOH/g) ≤||4.0|
|Peroxide value (mmol/kg) ≤||7.5|
|Color (Lovibond Cell 133.4mm) ≤||R2.0 Y20|
|Smell and taste ≤||No smell and good taste|
|Transparence ≤||Clear and transparent|
|Moisture and volatile matter (%) ≤||0.05|
|Insoluble impurities (%) ≤||0.05|
|Acid value (mgKOH/g) ≤||0.20|
|Peroxide value (mmol/kg) ≤||5.0|
|Smoke point (°C) ≥||215|