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Column Internals:

1. Liquid Distributor

Distribution of the liquid onto the packed bed or structured packing is provided by appropriate liquid

distributors. It is important to distribute the liquid flow equally across the column area in order to secure an

intensive mass transfer between the phases. An important design criteria is the number of drip points in

relation to the column area (= irrigation density).

he following types of liquid distributors are available!

• "an#type distributor 

• Deck#type distributor 

• trough#type distributor 

• ladder#type distributor 

• spray no$$le#type distributor 

%ollowing principles of liquid distribution are used!

• by orifices at the bottom of distribution troughs or by drip tubes with side perforations

• overflow distribution by slots at the side of the troughs or by overflow spouts

• no$$les

In addition to the requirement for regular liquid distribution the internal has to meet following requirements!

• pressure drop in the gas phase should be low&

• part should be resistant against dirt or solids in the liquid&

• high turn down ratio&

• low entrainment of droplets&

• prevention of irregular gas distribution&

• prevention of wall effect on liquid flow.

Kevin…..

'iquid distributors aim towards ideal liquid distribution& i.e. equal liquid rate per unit area of the packed bed

surface. hese distributors are available in a complete range to suit various column diameters& liquid rates and

service conditions. odels& which can give turndown ratio upto *!& are available. +ur design team selects the

most suitable model for a given application.

2. Collecting Trays

3. Liquid eed !ystem

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". #ed !u$$orts

%. #ed Limiters

&. 'ist (liminators

). *as Distributors

+. Custom Designed internals ,or s$ecial -$$lication