Liqui-Cel® Membrane Contactors

Liquid Deaeration for Corrosion Control and Reduced Chemical Usage

Membranes Business Unit,
13840 South Lakes Dr.,
NC 28273 United States of America

Liqui-Cel® membrane contactors have been used for over 20 years to remove dissolved gases from liquids or add gases to liquids. These deaeration devices are capable of removing O2 to < 1ppb and CO2 to < 1ppm. Liqui-Cel® liquid degassers are designed to tolerate high pressures/temperatures and are capable of processing flow rates from 5ml/min to hundreds of m³/hr.

Dissolved gas removal for corrosion control

In the power-generation industry, limiting the amount of dissolved O2 and CO2 that enters a plant is essential to protect costly systems and components, such as boilers and piping. These components are vulnerable to corrosion because of dissolved gasses that are carried in through the feed water.

Dissolved gas removal with membrane contactors

In order to protect many metal systems’ components in the plant, dissolved oxygen and carbon dioxide that can negatively impact boiler performance and corrode metal must be removed.

Liquid degassing equipment

Liquid degassing can be accomplished using various methods, including chemical injection, vacuum towers, and/or forced draft deaerators, but these older technologies do not provide the same level of dissolved gas control. A typical vacuum tower can only achieve oxygen removal down to 7ppb, whereas Liqui-Cel® can remove down to < 1ppb.

The amount of CO2 removed by a typical forced-draft deaerator is typically 10ppm, which is much less than membrane contactors can achieve. Membrane contactor systems can be sized to remove dissolved CO2 down to 1ppm. Liqui-Cel® contactors are compact, efficient and more economical to operate.

Membrane degasifiers

Chemical injection does not use the large footprint of a vacuum tower or forced-draft deaerator, but has its own set of problems. The use of chemicals will, over time, place excess deposits on the metal surfaces in the boiler and piping throughout the plant. As deposits accumulate, the boiler has to be shut down for cleaning; this process is known as a blow down. Using more chemicals causes more frequent blow down schedules, resulting in higher operating costs.

All these problems can be easily remedied by using Liqui-Cel® membrane degasifiers, which have been field proven for over 20 years.

Gas removal and addition deaerators

Liqui-Cel® deaerators are used in many other applications. Most liquids that need gasses removed or added can benefit from a Liqui-Cel® membrane contactor system.

Technology Qualification of Liqui-Cel® Membrane Contactors for Deoxygenation of Low Salinity Water for Polymer Flooding

Polymer flooding using low salinity water has been shown to improve oil reservoir recovery rates by altering the reservoir characteristic from an oil-wet state to a water-wet state. It has also been shown to be cost competitive with other enhanced oil recovery (EOR) processes. The combined cost savings and increased recovery rate have prompted a lot of attention in the polymer flooding process with low salinity water in recent years.

Membrana Release Free Whitepaper

Membrana have release a free whitepaper on their Liqui-Cel® membrane contactors that deoxygenate low salinity water for polymer flooding.

Membrana Launches Online Membrane Contactor Store to Meet Customer Demand

Membrana-Charlotte, a division of Celgard, is pleased to announce the launch of its new online store for membrane contactors, which will provide customers with a convenient channel to purchase Liqui-Cel®, SuperPhobic®, MiniModule® and MicroModule® degasification products 24 hours a day.


Membrana GmbH

Oehder Strasse 28

42289 Wuppertal


Membrana – Japan

Polypore K.K.

Shinjuku Mitsui Building, 27F

1-1, Nishishinjuku 2-chome




Shanghai Memtech Co.,Ltd

RM 402, Building 18, No. 633

Wuzhong Road




EverGreen Technolgies Pvt. Ltd

3-D Maker Bhavan No 2

18 New Marine Lines

Mumbai 400 202




Reichwelt Sdn Bhd

No. 19, 2nd Floor, Pusat Perniagaan Alma, Jalan Perniagaan

Alma, 14 000 Bukit Mertajam

Pulau Pinang


Separation Technology and Materials

STM (New Zealand) Ltd

ABN 39 079 864 828

PO Box 8890 - Havelock North 4157

Hawkes Bay

New Zealand

Q-Trade Corporation

Lot 7 A-2 Sonner Farm Compound

Brgy. Timbao, Binan, Laguna 4024


MEMCON (Pty) Ltd

58 Concorde Road East, Bedfordview, 2007

PO Box 1137, Bedfordview, 2008


South Africa


14F, No. 1, Long-An Road

221 ROC Taipei County

XiZhi City


Sriarayathep Co., Ltd

399/75 Prachachuen Road

Jatujak, Bangkok 10900


ÖKOTEK Çevre Teknolojisi ve Kimya Sanayi Limited Şirketi

Deposite Is Merkezi A1 Blok Kat 3 No:314

Ikitelli OSB 34306