Question
a.
It is preferred to use a vertical condenser for condensation of vapor from a distillation column without sub-cooling
b.
Draining of residual liquid on tray during shut down of distillation column is facilitated by weep holes.
c.
Random packing a packed tower offers the advantage of lower pressure drop and higher throughput of fluids as compared to regular/stacked packing.
d.
Risers are generally not connected to the plate in a distillation coloumn by bolts, rivets or welding.
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