Liquid distributors

Name: Liquid distributors for optimised mass & heat transfer
Availability: InStock

Liquid distributors ensure an even distribution of liquid over the entire cross-section of the packed bed.

A packed column requires a well-designed liquid distributor system in order to achieve an even distribution of liquid across the packed bed, thus optimising mass transfer across the entire operating range. Other important characteristics of liquid distributors include low gas-side pressure drop, low sensitivity to fouling and low overall height.

Alexander Bergman Droplet separation, Column internals, Spray nozzles & systems, Tank cleaning

I look forward to providing product advice and solutions! Let's meet via a video call or a site visit. You can also phone or email us, of course.

Linda Caporicci Column internals, Droplet separation, Spray nozzles & systems, Other products

I look forward to providing product advice and solutions! Let's meet via a video call or a site visit. You can also phone or email us, of course.

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Technical data
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Checklist process data
General info Column internals
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Ensure optimal liquid distribution in the column

Factors taken into account when designing a liquid distributor for a specific process are:

liquid load
operating range
liquid properties
risk of fouling or foaming
allowable liquid entrainment

The number of drip points generally ranges between 60-150/m², depending on the particular application.

To ensure an efficient process, the following criteria need to be met:

even distribution of liquid
low pressure drop in the gas phase
low risk of clogging due to contaminants or solid particles in the fluid
wide flow range
minimise the amount of droplets entrained in the gas flow
ensure even gas distribution
prevent liquid-flow channelling in the bed or along the column wall

Different types of liquid distributors

Pan-type

Deck type

Trough type

Ladder type

Spray-nozzle type

Trough-type with integrated parting box

Listed below are RVT's different types of liquid distributors, liquid load, and recommended column diameter.

			Model and Material
Design type	Liquid load m3/m2h	Recommended column Ø in mm	Metal	Plastic	Ceramic
Pan-type	0,3 - 200	100 - 1600	M 150 T	P150 T	K 150 T
Deck type	5 - 200	>200	M 150 B	P 150 B	-
Trough type	0,3 - 50	>600	M 150 KK	P 150 KK	K 150 KK
Ladder type	4 - 100	all sizes	M 150 RR	P150 RR	-
Spray-nozzle type	3 - 200	all sizes	M 150 SR	P 150 SR	K 150 SR
Trough-type with integrated parting box	-	-	M 150 KQ	P 150 KQ	-

Other types or special designs on request.

Download PDF

RVT Column internals

Checklist important parameters

In order to offer an efficient and sustainable solution, we list here a number of parameters that are important to consider when selecting and sizing liquid distributors.

Sometimes it is difficult or even impossible to obtain information and data regarding the specific process. Together with our suppliers, we have extensive experience and we can make sound assumptions as a basis for designing the best solution for the process.

Operating data
Liquid	Unit
Volume flow - min	m3/h
Volume flow - mom	m3/h
Volume flow - max	m3/h
Liquid density	kg/m3
Dynamic viscosity of liquid	mPass
Surface tension	mN/m

Operating data
Gas	Unit
Volume flow - max	kg/h
Gas density (operating conditions)	kg/m3

Geometrical data
Data	Info/unit
Column diameter	mm
Opening for installation - Manhole	Yes/No
Opening for installation - Vessel flange	Yes/No
Packing - Random	Yes/No
Packing - Structured	Yes/No
Packing type	Please state if known
Number of drip points	per m2
Material	Please state
Optional material	Please state
Preferred type of distributor	Please state

Additional information
Data	Info/unit
Fouling	Yes/No
Foaming	Yes/No
Type of feed pipe	Please specify
Other requirements/additional information	Please specify

Optimised performance in mass and heat transfer processes

For optimised performance in a mass or heat transfer process it is important to understand the underlying principles and parameters that are important to consider when designing a column for flue gas cleaning, flue gas condensation or stripping.

To the knowledge base Column internals

Founded in 1976, RVT Process Equipment is a leading supplier and manufacturer of droplet separators, packings, column internals and other products for mass and heat transfer processes.

RVT Process Equipment offers advanced engineering and technical support and has extensive experience in various processes and applications in the chemical and petrochemical industry, refineries, power plants, and pulp and paper. The R&D department houses fully equipped test units, available to carry out customer-specific tests when needed.

RVT Process Equipment has subsidiaries and manufacturing facilities in Knoxville, USA and in Kunchan, China.