Graham is uniquely experienced in the field of freeze condenser technology.
Heliflows or Graham shell and tube type condensers can be provided based on
system requirements. Years of experience and numerous research projects enable Graham to provide "Engineering
Answers" tailored to your individual application.
Freeze condensers fall into two categories; the first includes vapors that condense, then freeze in the heat
exchanger. The second category typically includes nonfreezing condensibles mixed with
water vapor or another component, which does freeze.
Both applications are similar in that the objective is to condense and remove from the vent
stream as much of the vapor component as possible. The most effective method is to cool the vapor below
its freezing point, however, once a component begins to freeze, the heat transfer rate is gradually decreased.
To obtain the best efficiency, often two parallel units are used. One unit operates,
while the other undergoes a thaw cycle.
For more information on freeze condensers, read Freeze Condensing Vacuum
Systems for Deodorization and Condensers Control and Reclaim VOCs.
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