1617Chemical EngineeringMedium
An adequate clearance between the tray and the shell wall of a distillation column is provided to________?
AAvoid back-trapping
BNone of these
CAllow for thermal expansion and facilitate installation
DDrain the liquid from the tray when the unit is not in operation
Correct answer
C. Allow for thermal expansion and facilitate installation
Explanation
The correct answer is Allow for thermal expansion and facilitate installation.