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Deodorization of Oil Pressing Plant

Deodorization of Oil Pressing Plant
Bleached oil enters the plant and is sprayed into the Deaerator where, with the aid of vacuum, air and moisture is removed. The Deaerator also serves a buffer tank between the bleaching and the deodorization section.
The deaerated oil is then re-generatively heated by deodorized oil in the Economizer and then by high pressure steam in the Final Oil Heater to deodorization temperature. The temperature is maintained by automatic control of the steam pressure in the Steam Boiler. In the Final Oil Heater the oil is heated under vacuum and sparing conditions with sparing steam, which will improve heat transfer and start the stripping of the most volatile compounds.
The hot oil enters the inner column of the Double Shell Packed Column (DSPC) section of the Deodorizer. The column is filled with special structured packing so that the oil is distributed into a thin film and is evenly agitated by stripping steam flowing counter currently from the bottom of the column.

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