CO2 Capture by Sub-Ambient Membrane Operation 
Project No.: DE-FE0004278/FE0013163

American Air Liquide, Inc. will develop a system for CO2 capture based on sub-ambient temperature operation of a hollow fiber membrane. The membrane will be coupled with cryogenic processing technology in a closed-loop, bench scale test system that will initially be tested on synthetic flue gas and then on actual flue gas at the National Carbon Capture Center to verify the effect of possible contaminants, such as SOx, NOx and water, on membrane performance. Experimental results will be used to refine the integrated process simulation and to design a slipstream facility. Other objectives of the project are to demonstrate high selectivity and permeance performance with a commercial scale membrane module in a bench-scale test skid, verify mechanical integrity of commercial scale membrane module structural components at sub-ambient temperatures, and demonstrate the long term operability of the sub-ambient temperature membrane skid. Cryogenic operating temperatures will be achieved through the controlled expansion of the gas across the test system valves.

Hollow Fiber Membrane

Hollow Fiber Membrane

Related Papers and Publications:


  • For further information on this project, contact the NETL Project Manager, Andrew O’Palko.