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Overview
go through a review of distillation basics
Distillation Column
learn basics of distillation column
Interactive Examples
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Useful Links
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Chemical Solutions by Anurag Katiyar
- Various Parts of Distillation column
- Working of Distillation column
- Mc-Cabe Thiele method for binary distillation
- Multi component distillation
Various parts of distillation column are as follows :
- A vertical column where separation of components is carried out
- Trays,plates or packings are placed inside the vertical column to enhance mass transfer operations
- Reboilers provide necessary vaporization for distillation processes
- A condensor is recquired to cool and condense vapors leaving at top of the column.
- A reflux drum to hold the condensed vapor from the top of the column so that liquid can be refluxed back to the column
![[Distillation Column]](images/col2.gif)
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Woking of distillation column
The liquid mixture to be separated is introduced more or less centrally into a vertical cascade of trays. The feed tray divides column into two parts:
- Enriching Section : In this section vapor rising is washed with liquid flowing down from top to remove less volatile component.
- Stripping section :In this section liquid is stripped of volatile components by vapor produced at bottom by partial vaporization of bottom liquid in reboiler.
The whole operation can be summarised in following steps:
- Feed flows to bottom and collected in reboiler.
- Reboiler supplies heat to regenerate vapor.
- The vapor raised in reboiler is re-introduced into the unit at the bottom of the column.
- The liquid removed from reboiler is known as Bottom Product
- Vapor moves up and is condensed by a condensor.
- A part of the condensed liquid is stored in reflux drum to be recycled back to the top of the column and is called Reflux.
- The condensed liquid that is removed from system is known as distilate or Top product.
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