The objective of refining is to remove objectionable co-constituents in oil with the least possible damage to glycerides and minimal loss of desirable constituents. Ways of refining depend on nature and quantity of impurities contained in crude oil, application of RBD oil.
Classical chemical refining is used through successive steps: it must be degumming, neutralizing, bleaching, deodorizing and sometimes winterizing (Mainly removing free fatty acid and other minor constituents).

The set of equipment has obtained national patent, it is our developed third generation product with more advanced and mature technology, and it won GoldMedal on 8th China Fair of Inventions and New Technologies and Silver Medal on 6th International Invention Exhibition. It adopts intermittent refining craft, and has advantages of convenient transportation, small covering area, less operation staff and saving energy. 

Main equipment and process flow for cotton oil refining machine to make cotton oil:
 
1) Machines include:
degumming pot, deacidification pot, bleaching tower, deodorization pot, steam
separator, gear pump, water pump, etc. 
2) Process flow: 
First step : 
Cotton →clean→Dehusking→crack(or rough milling)→softening→flaking→cooking→pressing→crude Oil 
Second Step: 
Crude Oil→filtering→ Degumming→ Deacidification→ Water Washing→ Drying→ Bleaching/Decoloring
→ Filtration→ Deodorization→ Packing 

Cotton Oil Refinery Plant Process

Process Description:

1. Degumming of Cotton Oil Refinery Plant
The purpose of degumming is to remove impurities such as phospholipids, gums and proteins etc. There are several methods as follows: water degumming, acid degumming, special degumming etc. 

2. Neutralizing of Cotton Oil Refinery Plant
The purpose of neutralizing is to remove free fatty acid in oil by using caustic soda while removing impurities such as phospholipid, pigments, metal ions, peroxide etc. by use of soapstock.

3. Bleaching of Cotton Oil Refinery Plant
Bleaching is the process operation which removes colouring matters by mixing bleaching earth with oil under controlled conditions of temperature. After proper mixing with bleaching earth for a specific residence time, the mixture is finally pumped into leaf filters with stainless steel mesh elements followed by polishing filtration.

4. Deodorizing of Cotton Oil Refinery Plant
Deodorizing is the final stage in oil refining in order to remove odoriferous material, free fatty acids and other undesired minor components by steam distillation under condition of high temperature and vacuum to produce a bland oil with a good shelf life.

5. Dewaxing (winterizing) of Cotton Oil Refinery Plant
Through automation system, combined with crystallization curve (time-amount of crystallinity) of different oil, crystals in oil grow and finally can be separated by filtration to obtain dewaxed oil. 
 

Customer meeting                         Factory visit                                 Sign a contract

Our salesman, technical and              You can know our company strength     We have a professional installer and
financial staff will help you to solve     and our specialty, and professional       good after-sales service to be 
question.                                             interpretation.                                          recognized by our customers      

Main Features of Cotton Oil Refinery Plant

1) Simple structure in linear type ,easy in installation and maintation. 
2) Adopting advanced world famous brand components in pneumatic parts ,electric parts and operation parts. 
3) High pressure double crank to control the die opening and closing. 
4) Running in a high automatization and intellectualization,no pollution 
5) Apply a linker to connect with the air conveyor ,which can directly inline with filling machine . 

Quality requirements of crude oil:

1.Moisture and volatile matter of crude oil:≤0.25%
2.Impurity content of crude oil:≤0.2%
3.Acid value of crude oil(mgKOH/g):≤7

Product quality index:

1.Transparency : clear and transparent
2.Smell and taste : no strange smell
3.Color(lovibond colorimeter 133.4 slots)≤R1 Y10
4.Moisture and volatile matter:≤0.10%
5.Impurities content:≤0.10%
6.Acid value(mgKOH/g):≤0.12
7.Peroxide value(mmol/kg):≤3

Application Scope of Cotton Oil Refinery Plant
It can be used to process oil of Peanut, Coleseed , Coconut, Sunflower Seed,Soybean,cocoa, ; argan,sesame,black cumin,almond ,pomegranate seeds,Palm Kernal and other oil seed material.