CMS Membrane Contactors

Chemical and temperature incompatibilities, swelling or wet-out will severely limit the processing of most oils with either conventional microporous hollow fibers (e.g. polypropylene, polysulfone), or flat sheets (e.g. expanded polytetrafluoroethylene, polydimethylsiloxane and other silicone rubbers).

CMS' Membrane Contactors are uniquely defined by the high resistance to wet-out by low surface tension liquids, high productivity, and chemical inertness of our nonporous fluoropolymer membranes. Removal of gases from low surface tension liquids is uniquely suited to 'organophobic' and 'oleophobic' fluoropolymer membranes. CMS fluoropolymer membrane modules have been demonstrated to degas naphthenic lubrication oil at temperatures as high as 100°C.

CMS makes the highest mass transfer membrane contactors that are:

Chemically compatible with virtually all acids, bases, solvents and hydrocarbons.
Will not allow direct contact between gas and liquid phase process streams, while allowing rapid mass transfer of permeating species between the streams.
Low fouling/easy cleaning surface.
Allows smallest practical device footprints and operating energy.

Unique Characteristics of CMS Fluoropolymer Membrane Contactors

Highest gas flux (permeance) of any nonporous/non-wetting gas transfer membranes.
Nonporous, non-wetting surface compatible with low surface-tension ‘wetting’ fluids (alcohols, hydrocarbons, solvents, aqueous surfactant solutions, blood plasma) that would quickly seep through conventional hydrophobic microporous membranes (e.g. polysulfone, polypropylene, polyvinylidene fluoride, and expanded polytetrafluoroethylene).
Chemically resistant to most aggressive gases or liquids
Bubbleless gasification/degasification, (low agitation and shear)
Very low levels of extractables (in all-fluoropolymer modules)
Low fouling/easy cleaning

Click on the Contact Us link at the top/bottom of this page and call or email us with your application problem. We'll help you determine if CMS can help solve your gas/liquid contactor needs.

To learn more about our gas/liquid contactor products click here.