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News ReleaseAir Products Reaches Milestone with Fabrication and Sale of 500th PRISM® Membrane Process Gas System

October 24, 2013

Air Products has now fabricated and sold 500 PRISM® Membrane Process Gas Systems to customers all around the world, including a handful of systems that the company has incorporated into its own plants.

Since 1977, a global team of engineers from Air Products spanning Belgium, Norway, China and the US has custom engineered, fabricated, and delivered 500 Process Gas Systems. Most of these systems are used for hydrogen recovery or carbon monoxide purification. Globally, these systems have been installed at over 225 ammonia plants, where they are used to recover hydrogen, and at 90 oil refineries to reject light hydrocarbons from high-pressure hydroprocessor loops and recover hydrogen from off-gases.

The latest order for two process gas systems, which will be used to upgrade Air Products’ facility in Baytown, Texas, pushes the company past the 500 milestone mark. The units are expected to be installed in early 2014.

“Air Products has selected PRISM® Membrane Technology for use in our own facilities because of its proven track record for critical gas separation applications,” said Tom Mutchler, vice president, Global Engineering and Manufacturing. “The excellent performance and reliability of PRISM® Membrane Process Gas Systems make them the best solution for this application.”

Each of the systems is engineered with PRISM® Membrane Separators, which are manufactured exclusively at Air Products’ facility in St. Louis, Missouri. The PRISM® Membrane Separators contain polymeric hollow fibers that use selective permeation under differential pressure to separate hydrogen from methane, carbon monoxide, and other hydrocarbons.

“Most of the installed PRISM® Membrane Process Gas Systems are still online and running today due to rigorous design, routine maintenance, and long membrane life,” said Ian Backhouse, global business director, Process Gas Systems at Air Products. “For more than 35 years, these systems have been providing an economical and durable solution for hydrogen and carbon monoxide separation and recovery in the refining, petrochemical, and fertiliser markets.”


About Air Products
Air Products (NYSE:APD) provides atmospheric, process and specialty gases; performance materials; equipment; and technology. For over 70 years, the company has enabled customers to become more productive, energy efficient and sustainable. More than 20,000 employees in over 50 countries supply innovative solutions to the energy, environment and emerging markets. These include semiconductor materials, refinery hydrogen, coal gasification, natural gas liquefaction, and advanced coatings and adhesives. In fiscal 2012, Air Products had sales approaching $10 billion. For more information, visit  

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