Liquid Collectors

Liquid Collectors using a separate collector improves cross mixing of the liquid before redistribution and allows mixing of feed streams with the internal column liquid.

A separate collector typically is used in applications that have one or more of the following requirements:

Distillation services with high stage count per bed;

High purity product distillation systems;

Distillation services operating near the minimum reflux ratio or close to an equilibrium pinch;

Absorption or stripping applications with close approach to equilibrium;

A separate collector requires more column height than a channel or deck-type redistributor;

When used between packed beds for redistribution, a trough-type distributor requires a collector to catch the liquid from the bed above.

Factors to consider when choosing the style of liquid collector:

Pressure drop limitation;

Thermal expansion;

Leakage limitations;

Field welding.