Refinery Continuous System

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Costic refining is a process of neutralizing row plant oil chemically.     This process is done for changing into soap, the oil acid in oil consisting of mixing the oil with caustic mineral water and removing the formatted deposit by centrifuge separating system

This process is very suitable for most of edible oils and provides to produce first class   edible oils after refining.

For obtaining first-class oil, the row-oil entered through the smelling unit must be decomposed from impureness substances.

Costic neutralizations and bleaching are a necessary process to produce concentrated oil. These oils are   soybean oil, sunflower oil, corn seed oil etc. Stages for the system are divided   in 3 stages.

1. Acid treatment

2. Neutralization

3. Washing with water



The main purpose of bleaching is removing the contents of the oil that are coloring and having the last color of the product by adsorption. On the other hand, in the classical refinery systems, bleaching is used to remove the remaining parts of the soap before the last stage of      the oil deodorization. This system not only allows the benefits of reduction in work force and place but also, gives the opportunity to have the same breaching results with spending less breaching soil.

The oil is entered from the feeding tank which has also the function of drying(301) Oil that    is settled to flow with flow-meter, flow directly in to the mixer of oil-soil, here(330A) it is stocked , and bleached soil is mixed with it with the help of speedy  dosing  arrangement (306). As a result, the prepared mixture is pulled at higher level of heating bleacher that brings oil at  desired heat.(322/21) the mixture flow to the bleacher that is working under vacuuming  by overflowing system. This system allows airing and mixing the both oil and soil at optimum. The parts that are designed specially inside, lets the mixer flow uniformly and against any short circuit danger, it finds out the perfect staying time. The mixture of oil and soil is finally sent to pumps of (P332) to the filters.


For the same results of the breaching; the economies of work force and time and less consuming of breaching soil.

For having the desired colored, the measurement of  oil  and soil appropriately and sensitively.

Under 90-100 temperature 55 vacuumed optimum working conditions, dispersion of all the  beached soil particulars with the oil in the process and besides , beached soil in oil. The staying time oil-soil mixture  in the bleacher.(30 minutes)

There  is no need for inspection in bleacher.



Some oils will lose their color if cooled to too temperature. In order not lose their color, they should be winterized.

VINTERIZATION OF PLANT OIL: Too higher level of heating will make waxes go ahead. Sometimes this method will make the distance ahead than Stearns.

The process of winterization has done in 3 steps.

1st phase: Oil typed label is cooled.

2nd phase: Including filter consistence material and oil is cooled slowly. In order to have a cool test, oil must be retained some hours before filtration.

Final phase of oil:  Loose the added material from the oil. At 95 C, oil is cooled by W1081 A machine via cool oil. W1081B heat refinery can also be adapted to other sides. Oil that is pre-cooled is mixed with the perlite in W535 tank. Filter assistance material is deported daily in W530 depot. Depot is denoted with the continuous velocity W507 machinery continuously this will flow through the cooler W502, and here it is added partially with the help of the stick inside the water of glucose. Oil is waited in W503 in order to mature before filtration then oil is pumped through the filters. In order to simplify the filtering before filtration, fragile water is added into W521A heater. Filtered oil is flowed into W582B tank and from here via PW582B pump it is transferred to the other processes.



Continue deodorize enables the usage of heat exchanger systematically which reduces the consumption of fuel for oil and steam and also the cooling water that is used to cool the product. Moreover, steam and water consumption stabilized which prevents high expenditure that leads optimum heat transfer conditions. All procedures of deodorization becomes under the same

vacuum, which obtains perfect conditioned oil with the usage of appropriate time and heat.


In order to be conditioned properly oil forced to flow in conditioning (410) tank that works under

The same vacuum with deodorize unit. The conditioned oil pumped continuously through heat exchanger in order to pre heated with deodorized oil and bleaching oil. The two heat exchanger are connected in series.

First:  It’s a plated heat exchanger (418A) that deodorized oil preheated over 110 C.

Second: Obtained by cooling the deodorized oil till 150 C and circulated bleaching oil inside

serpentine of turbo flow cooler.


Steam consumption ratio on deodorization is between %0.4 and %1.0 under the designed criteria below;

·        FFA

·        Vacuum Pressure

·        Deodorize Heat

·        Staying Time

The ratio of recycling heat reached %85 approximately in Continuous deodorize unit and

other process units with different developed heat esanjör systems.

In Continuous deodorize, the product that is supported in a limited period of time less

changes which means the raw material that are worked up during the Continuous deodorize used with a little number of product change.

The design of deodorization is prepared due to the criteria below independent from half Continuous or Continuous working system.

1.Highly ladled in vertical position

2.Every ladle has checking hole for repairing and observation

3.Every ladle has two observing window. One of it is open glassed in order to help the working personnel to control the ladle.

4. The control holes, observing windows and connection pipes on every ladle leveled above the oil level in order to prevent direct

air entry to oil.

5. All serpentine system that are placed in deodorize unit to heat with thermal boiler, to do heat transfer and cooling, are designed, produced and tested to perform high standard quality.

Last Updated on Sunday, 05 May 2013 22:42
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