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Tech Brief: CO2 -- Liqui-Cel(R) Contactors compared to Forced Draft Deareators

January 8, 2003

Liqui-Cel Membrane Contactors have been used for over 10 years and they are clearly proven in the field. In effort to help further educate customers on the benefits of Liqui-Cel Membrane Contactors over conventional forced draft degasifiers for CO2 removal, we have prepared the following technical comparison.

System Size and Placement
The size of a Liqui-Cel Contactor is comparable to a reverse osmosis (RO) membrane, which makes it possible to design your RO unit and easily accommodate your degassing system in the same system skid/frame. This is impossible when using a forced draft tower. The advantages here are saving space and lowering installation costs. Additionally, no special foundation is needed for your Liqui-Cel System. These points are very important to consider when comparing a Liqui-Cel system to a forced draft tower because the foundation, support structure, and installation of a tower can be a big expense.

System Pressure Drop
Because the pressure drop in the Liqui-Cel Contactors is so small compared to a forced draft tower, you have a huge benefit of sending your RO permeate water through the Liqui-Cel System and then directly into the storage tank. Similarly, RO permeate can be sent directly through the Liqui-Cel System then through the ion exchange, mixed bed, or EDI and into the storage tank without the need to re-pump. This represents a big cost savings that must be taken into consideration when comparing a Liqui-Cel Contactor system to a forced draft tower....

Click here to download the complete tech brief in pdf format.

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