User:Milton Beychok/Sandbox: Difference between revisions

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[[Image:Vapor-Liquid Separator.png|thumb|right|246px|A typical vapor-liquid separator including commonly a de-entrainment pad and sometimes an inlet distributor]]
 
A '''vapor-liquid separator''' is a vertical vessel used in several industrial applications to separate a vapor-liquid mixture. Gravity causes the liquid to settle to the bottom of the vessel, where it is withdrawn.<ref>{{cite book|author=William D. Baasel|title=Preliminary Chemical engineering Plant Design|edition=2nd Edition|publisher=Van Nostrand Reinhold|year=1990|id=ISBN 0-442-23440-6}}</ref><ref>{{cite book|author=David H.F. Liu|title=Environmental Engineers' Handbook|edition=2nd Edition|publisher=[[CRC Press]]|year=1997|id=ISBN 0-8493-9971-8}}</ref><ref>{{cite journal|author=Stanley S. Grossel|year=2004 |month=June|title=Design and sizing of knock-out drums/catchtanks for emergency relief systems|journal=Plant/Operations Progress ([[AIChE]])|volume=5|issue=3|pages=129-135|issn=0278-4513}}</ref><ref>{{cite book|author=Stanley M. Walas|title=Chemical Process Equipment:Selection and Design|edition= |publisher=Butterworth-
Heinemann|year=1988|id=ISBN 0-409-90131-8 }}</ref> The vapor travels upward at a design velocity which minimizes the [[Entrainment (engineering)|entrainment]] of any liquid droplets in the vapor as it exits the top of the vessel.


The feed to a vapor-liquid separator may also be a liquid that is being partially or totally [[Flash evaporation|''flashed'']] into a vapor and liquid as it enters the separator.
The feed to a vapor-liquid separator may also be a liquid that is being partially or totally [[Flash evaporation|''flashed'']] into a vapor and liquid as it enters the separator.

Revision as of 22:22, 10 February 2008


The feed to a vapor-liquid separator may also be a liquid that is being partially or totally flashed into a vapor and liquid as it enters the separator.

A vapor-liquid separator may also be referred to as a flash drum, knock-out drum, knock-out pot, compressor suction drum or compressor inlet drum.

When used to remove suspended water droplets from streams of air, a vapor-liquid separator is often called a demister.

Where vapor-liquid separators are used

Vapor-liquid separators are very widely used in a great many indusries and applications, such as:

See also

References

External links

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