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Drum, separator, and scrubber

asked Apr 1, 2015 in Process by ChemKB (8,210 points)
What is the difference between drum, separator, and scrubber?

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answered Feb 2, 2016 by TPham (5,010 points)

Drum: or knock out drum (KOD) is used when a small amounts of liquid droplets to be removed gas/vapor upstream.

Separator: separator is used when there is a quite a bit of liquid to be removed from gas/vapor upstream prior to delivering to the compressor suction.

Scrubber: srubber is used to separate sour gas in counter-current contact with the solvent/amine with internal containing trays and/or packings.

These are my understanding but all three terms are used interchangeably and can mean the same thing. It is to separate the Vapor-Liquid so they should be called as SEPARATOR as a common term, period!

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