Process Description Of Edible oil Refinery
Cooking Oil Refineries, Edible Oil Refineries for Sale
For refining the oil, there are three basic steps in the process. The first step is neutralizing the oil in the neutralizer , removing the free fatty acids (FFA) by adding caustic soda. The oil is heated upto about 60°C by the thermic fluid coils and oil is stirred by the stirrer. Then as the chemical reaction, the formed soap stock is allowed to settle at the bottom of the neutralizer from where it was taken out into the soap pan.
The neutralized oil is drawn into the second vessel called bleacher where the colour of the oil is removed by the bleaching process with aid of chemicals, such as carbon black and bleaching earth. The oil is generally heated upto 110°C by thermic fluid coils. Stirring is also continuing. Bleaching process is done under the vacuum. Process Cooking Oil Refineries, Edible Oil Refineries
Then the bleached oil goes to the filter press where the bleaching earth and chemicals are separated,the clean bleached oil is drawn into the deodourizer where the oil will be heated above 110°C through the thermic fluid coils. After the live steam is given to the oil from the bottom steam nozzles, the temperature of the oil is raised upto 200 to 220°C through the thermic fluid coils. The entire process is done under the high vacuum. Thus the smell is removed from the oil in the deodourizer. Then it goes to cooler where the water circulating coils take away the heat and the oil is cooled. Again it goes to the second filter press where the completely refined and transparent color less oil is obtained.
The thermic fluid boiler, the vacuum pump, the barometric condenser, the catchalls, the steam generator etc. play their roles in the refining process. These equipments are part of the refinery and connected with the vessels through pipelines. Process Cooking Oil Refineries, Edible Oil Refineries:
A. Neutralisation of degummed veg, oil
[1] In batch neutralization preheating the oil charge up to 70 to 80 °C before adding the caustic is preferred than cold neutralization . However cottonseed oil is neutralized with alkali at room temperature as pre heating caused colour fixation.
[2] Selection of lye and its strength is very essential as it varies from oil to oil depending upon the FFA content of oil . Also the excess of lyes are usually used for neutralization of oils.
[3]The oil charge immediately after de gumming at 80°C is neutralized with requisite quantity of lye. If oil charge is at room temperature it should be heated to 70-75°C before the neutralization removes the free fatty acids (FFA in short). Other undesirable materials by series of steps like additional caustic lyes, constant stirring after addition, little water washing (@ 1 to 10% ) , settling, allowing soap stock draining after 2-3 hours from where it is taken out into soap pan, two hot water washing respectively. Finally, FFA should be 0.09 to 0.10%. then neutralized oil send to either storage or bleacher.
B. Bleaching of neutralized oil
Neutralized oil is then charged into the Bleacher Reactor where in color of oil is removed by bleaching process with aid of chemicals. Such as carbon black and bleaching earth. Oil is generally heated up to 110°C under continuous stirring through drive and medium vacuum.
Bleached oil then pumped to the filter press in which oil spent earth with gums get separated.
C. Deodourising of Bleached oil
The Bleached oil is then charged to deodorizer where oil is heated above 110°C either steam or thermic fluid oil and live steam sparged in bleached oil from the bottom steam nozzles. The temperature of oil is raised up to 200 to 220°C under high vacuum to remove undesirable odiferous material with l in the deodorizer.
D. Cooling of Deodourised oil
Immediately after deodorization refined vegetable oil dropped into cooler. With the help of water circulating coils and stirrer heat which are under high vacuum will take the heat away , then oil will be cooled to 45°C. Again this deodorized oil and pumped it to second filter press and polish filter and getting with transparent colour less oil refined the vegetable oil .
*Additional Processes for palm oil refinery with fraction process
Specially for palm oil refinery, fractionation process is required in which palm olein and palm stearin are separated by scientifically cooling the refined palm oil by chilling plant and then filtering the oil. For this purpose crystalizing vessel is used in which chilling pipe coils cool the oil for fractionation. Palm sterene crystals are formed due to chilling which are separated in the filter press and pure liquid of palm olein is obtained and palm sterene cake is retained in the filter press.
(01) The chilling plant for fractionation process which will include shell and tube chiller, compressor, motor, pump, condenser, control panel box etc. required for processing.
(02) Crystallizer unit completed with chilling coil.
(03) Filter press for separation of palm olein and palm stearin.
Salient Features of Oil Refinery Machinery ( 5 MT/Batch to 10MT/Batch ie. 20 MT to 40MT/24 Hours)
We make all ranges of Refinery from 5 MT/Batch to 10MT/Batch ie. 20 MT to 40MT /day( 24Hours) includes recent developed technological machineries such as Neutralization reactors with conical bottom , bleacher with dished end on both sides , deodorizers with dished end on both sides , horizontal / vertical cooler , Plate and frame Filter press, pressure Leaf Filter, Crude oil/Washed oil/ Bleached oil/ Deodorized or cooled oil/ Refined oil/various all others storage tanks, Thermic fluid boiler, Steam boiler, Vacuum pump, Water pumps, oil pumps, High vacuum system with ejectors and booster, Barometric condenser at 12met. height to create high vacuum, Cooling Tower, water /oil// thermic fluid oil/barometric condenser, vacuum pump pipelines , Drive with gears and motors , ISI coloring codes for different pipelines , Vacuum gauges, pressure gauges and all other instruments wherever required , insulation, various types of standard valves, Reactor coils, SS nozzle and full steel structure with three floors according to the suitable capacity, type ,size and arrangement.
Crude veg, Oil ----->
1. Degumming----> Neutralization--->Bleaching-->Filtration Or
2. Refrigenationand Fitration ----->Deodourisation-->Filtration----> Micropolish filtration ----->Cooling -->
Tank Storage or Packing [ Refined vegetable oil]
BSS CASTOR OIL REFINING:
Degumming is provided with steam coil and steam sparger for heating the oil.
Bleacher is provided with double pipe coil. One is for thermic fluid and the other is for cooling water. In case of Medicinal Castor oil Deodorizer is provided with double pipe coil i.e. in both of the coils, thermic fluid is circulated. Steam is ejected from the stainless nozzles, provided on the steam pipe cross and supported at the bottom. The Process is nearby similar to the above with slight change.
Crude Castor Oil -----> Degumming----> Bleaching ---> Drying I I v BSS CASTOR OIL
