Column internals

We offer a complete range of packings and column internals for optimised mass and heat transfer.

Optimising mass and heat transfer performance in flue gas cleaning, flue gas condensation or stripping processes in a column requires extensive process knowledge and experience, as well as high quality equipment. The specific process operating conditions, gas composition, gas flow, material selection, pressure drop, etc., are all important parameters to consider in order to design and deliver the right solution for a particular process.

Together with our supplier RVT Process Equipment GmbH, we offer a complete range of high quality column internals and packings, advanced technical support and a very extensive know-how and experience. We represent RVT Process Equipment GmbH in Sweden, Norway and Denmark.

Random packings

Designed to optimise the contact surface area between gas and liquid, with lowest possible pressure drop.

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Structured packings

Used in processes with low liquid load, high gas flow and low pressure drop requirements.

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Droplet separators

Droplet separators and demisters are used to remove liquid from the gas stream, minimising the amount of liquid entrained in the gas exiting the column.

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Liquid distributor RVT Process Equipment

Liquid distributors

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

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Gas distributors

Gas distributors distribute the incoming gas flow evenly across the cross-sectional area of a column.

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Catch basins and aerial distributors RVT Process Equipment

Collecting trays & redistributors

Collecting trays and redistributors are used to collect or redistribute downcoming liquid at the bottom of a packed bed.

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Combi element

RVT's patented Combi element combines the function of a support grid and a collecting tray, in a single unit.

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Support grids

Various types of support grids are used to support the packed bed, depending on the specific process and column diameter.

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Bed limiters

Bed limiters are installed directly above a packed bed to prevent movement of the packing.

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Mass transfer trays

Mass transfer trays are used in mass transfer columns in the chemical, petrochemical and environmental industries.

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Support & Service

We offer technical support, process design, engineering, CDF analysis, and test facilities.

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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.

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.

Which are the underlying principles of mass and heat transfer?
Mass transfer Many industrial processes generate mass transfer of some sort, i.e. moving mass from one part of the process to another. This may be to separate different substances from each other, change the composition of a mixture, or concentrate a solution. Mass transfer can take place in a number of ...
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How does flue gas cleaning work? Key process parameters?
Flue gas cleaning is a mass transfer process with an objective to remove unwanted or hazardous substances from the process. Flue gas cleaning is used in a variety of industries and applications.
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How does flue gas condensation work? Key process parameters?
Flue gas condensation is a process commonly used in the chemical industry and is an example of heat transfer. Flue gas condensation is used to recover and reuse heat produced during a process.
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How does stripping work? Key process parameters?
Stripping is a mass transfer process where one or more substances are removed from a liquid. One of our areas of expertise in mass and heat transfer is the removal of ammonium or other volatile substances and contaminants in process or waste water.
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What support does Hansa Engineering offer to optimise mass and heat transfer processes?
We have a lot of experience and solid know-how regarding mass and heat transfer processes and work closely with our supplier RVT Process Equipment's engineering and technical support department. ...
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Column for flue gas cleaning, flue gas condensation or stripping

A flue gas cleaning, flue gas condensation or stripping column consists of a number of different components in order to achieve optimal mass or heat transfer.

Quench - Before the hot process gas is introduced into the bottom of the scrubber column, the gas often needs to be cooled to its dew point in a quench using spray nozzles.
Packed bed - Random or structured packings optimise the contact surface between gas and liquid, with as low a pressure drop as possible, thus optimising the mass or heat transfer in the process.
Bed limiters - Installed directly above the packings to prevent the packings from being carried away by the gas stream due to high gas flows or temporary pressure changes in the process.
Support grid - Serves as a support for the packings.
Liquid distributors - Ensures an even distribution of liquid over the entire packed bed, optimising the mass or heat transfer over the full operating range.
Combi element - When the scrubber column has several packed beds, it is an advantage to use a combi element to support the upper packed beds. The combi-element acts as a support grid as well as a liquid distributor for the packed bed below.
Collection tray and/or liquid re-distributor - The collection tray collects liquid below a packed bed, and then removes the liquid from the column. Alternatively, the collected liquid is transferred to a liquid re-distributor which in turn distributes the liquid over a second packed bed below.
Droplet separators - To prevent scrubber liquid from being carried away with the process gas from one packed bed to another, or out of the column, droplet separators are installed in the scrubber column.

Technical support, engineering and know-how

We have a lot of experience and solid know-how regarding mass and heat transfer processes and work closely with our supplier RVT Process Equipment's engineering and technical support department.

Together we offer extensive process knowledge and experience, focusing on developing an optimised and sustainable solution for our customers.

Technical support and advice

hydraulic analysis - selecting the right type of packing
technical solutions for customer-specific problems, applications or column equipment

Call, email or book an online meeting! We are also happy to make a site visit, if needed.

Advanced technical support

Process analyses - Process optimisation, cost savings, troubleshooting
Engineering - Engineering, CFD analysis (calculations of pressure drop and flow for column optimisation), FEM analysis, mechanical strength analysis.
Hydraulic and mechanical analyses - Hydraulics, maldistribution, bottlenecks, etc
Test facilities - Test column for packings, test column for mass transfer trays, test facility for liquid distributors. RVT also offers test facilities on customer site.