Compact Membrane Systems, Inc

CMS is a technology company engaged in research and development of fluoropolymer membranes and thin films with exceptional gas transport properties and chemical resistance.

At CMS, we:

• Sell products and license technology.
• Develop business partnerships to bring applications to market.
• Conduct contract membrane research.

Unlike other gas-liquid contactors and gas separation membrane cartridges, CMS membranes process gases and liquids without degradation, leakage, bubbles or foaming.

CMS manufactures membrane cartridges for gas separations including:

• Nitrogen or oxygen enrichment of air.
• Separation of volatile organic chemicals from air.

CMS supplies membrane contactors for gas dissolution, degasification & dewatering of:

• Solvents.
• Oils.
• Surfactant solutions.
• Aggressive chemicals.
• Temperature sensitive liquids.

Compact Membrane Systems, Inc. is a technology company located in Wilmington, Delaware. It was founded in 1993 after acquiring exclusive rights to certain DuPont patents and fluoropolymers. CMS today has a growing patent portfolio due to a successful track record of obtaining research grants.

Compact Membrane Systems' focus is on the research, development and commercialization of membranes and thin films composed of fluorinated polymers with exceptional gas transport properties and chemical resistance.

Applications where CMS technology is used fall into two general categories, membrane cartridges for gas separation and membrane contactors for the introduction or removal of gases from liquids. Examples of gas separation applications are: oxygen enrichment of air; nitrogen enrichment of air; and separation of volatile organic chemicals from air, all cases where a high productivity membrane is required.

CMS membrane contactors provide a nonporous but highly gas transmissive barrier to liquids. Examples of typical applications include: deoxygenation or degassing of oils and solvents; ozonation of aqueous solutions; and dehydration of solvents, oils, or fluids that would otherwise be damaged by water evaporation through heating.

CMS has developed or is developing a number of clean energy applications. Some examples are: Nitrogen Enriched Air for diesel engine NOx emissions reduction, gasoline vapor recovery, dehydration of wind turbine gear oil, and dehydration of green fuels (such as biodiesel, ethanol, and biobutanol).

CMS's business model is to develop coating and membrane manufacturing technologies in-house, and to locate and demonstrate product applications uniquely suited to our products. In some cases, we establish collaborative partnerships with companies seeking to introduce these products into the market.

Our company offers prospective partners a strong and growing technology portfolio, a unique family of fluoropolymer membrane materials, an ability to identify and serve niche markets, and an ability to both rapidly and cost-effectively drive the product development process.

If you are interested in discussing the development of a partnership with CMS, click on Contact Us.

CMS supports the development of renewable energy resources.

Products and Applications

Most gas separation membranes and gas-liquid contactors are designed for specific applications and are optimized for the liquids, gases, pressures, flows and temperatures of the target separation process.

In most cases, CMS designs and builds membrane products by partnering with customers to design, build, test and evaluate prototypes for a customer’s specific process and application. After reviewing this website, we invite prospective customers to contact us to discuss your specific application.

Gas-Liquid Membrane Contactors

Oil Degassing

Removal of dissolved gases through CMS membrane contactors allows automated condition monitoring of dielectric oil by the electric power industry to avoid catastrophic failure of large electric transformers in the power grid.

Oil Dehydrator

Lubricating oils absorb moisture through the normal exchange of air throughbreather vents. Dissolved and free water in oil has been shown to be detrimental to bearing and gear life. CMS membrane contactors enable continuous removal of dissolved and free water from lubrication oils. This reduces maintenance costs and down time.

Ozonation of Water

Chemically resistant CMS membrane contactors are ideal for bubbleless ozonation of water in semiconductor manufacturing. Ozone is injected into ultra-pure process water for final purification at the point-of-use in semiconductor plants. Conventional injectors are unsuitable for semiconductor fluids, as gas bubbles in semiconductor fluids are known to decrease yield of saleable chips. The ozonation gas/liquid contactor is designed specifically for this application. It is entirely constructed of highly fluorinated polymers for excellent chemical resistance.

Gas Separations

Nitrogen Enriched Air

Air enriched with nitrogen to 81% NEA has been shown to reduce NOx emissions from on-road diesel engines by 50%. The result is reduced exhaust emissions and cleaner air. Similar benefits have been demonstrated for stationary diesel engines used for power generation.

Gasoline Vapor Recovery

CMS cartridges are the heart of a vapor processor designed to meet CARBPhase II Enhanced Vapor Recovery regulations that are designed to improve air quality and reduce smog created by gasoline vapor emissions from retail gasoline stations in California.

Please contact CMS to discuss your gas separation or gas-liquid contacting application.