Separates a mixture into two phases. The
conditions in the flash unit, such as
temperature or pressure, are altered to
separate the feed into two single phase
streams.
HOW IT WORKS?
1. Mixture is separated by
passing it through a flash
drum at fixed T and P
2. Mixture reaches eqm. (Vap leaves the
top and liquid at the bottom
3. Degree of separation depends on: the
composition, concentration, T and P
WHY?
To separate valuable
and desired products
from unwanted
mixtures