Liquid Collector and Distributor Product Description

The Liquid Collector and Distributor, also known as a Liquid Redistributor or Collector Tray, is a critical column internal used in multi-bed packed towers. Its primary function is to collect the liquid descending from the upper packing bed, direct it away from the gas stream, and then redistribute it uniformly to the lower bed. The design typically combines a gas-rise chimney tray with a liquid collection pan and a trough or orifice-type distribution system. This prevents liquid channeling and ensures the lower bed receives an even liquid load, which is essential for high mass transfer efficiency. It also allows for total or partial liquid draw-off for side-stream products, pump-around circuits, or reboiler feeds. Fabricated from stainless steel or carbon steel, the device is custom-engineered for each column diameter and process condition.

Product Highlights

• Combined Collection & Redistribution: Integrates both functions in one assembly, reducing column height and simplifying internal layout compared to separate collector and distributor units.
• High Gas-Liquid Separation Efficiency: The chimney tray allows gas to rise freely while liquid is collected with minimal entrainment, ensuring dry gas enters the upper bed.
• Flexible Draw-Off Capability: Supports total or partial liquid withdrawal for side-streams, reflux, or reboiler circulation without disturbing the main liquid flow to the lower bed.
• Uniform Redistribution: Precision-engineered troughs or orifices deliver an even liquid pattern across the full cross-section, eliminating maldistribution and maintaining column performance.
• Wide Turndown Ratio: Designed to maintain distribution quality across a broad range of liquid loads, typically achieving turndown ratios up to 3:1.
• Robust All-Metal Construction: Manufactured from 304/316L stainless steel, carbon steel, or higher alloys, withstanding temperatures up to 450°C and corrosive media.