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System and process for capture of acid gasses at elevated pressure from gaseous process streams

United States Patent

September 6, 2016
View the Complete Patent at the US Patent & Trademark Office
Pacific Northwest National Laboratory - Visit the Technology Commercialization Program Website
A system, method, and material that enables the pressure-activated reversible chemical capture of acid gasses such as CO.sub.2 from gas volumes such as streams, flows or any other volume. Once the acid gas is chemically captured, the resulting product typically a zwitterionic salt, can be subjected to a reduced pressure whereupon the resulting product will release the captures acid gas and the capture material will be regenerated. The invention includes this process as well as the materials and systems for carrying out and enabling this process.
Heldebrant; David J. (Richland, WA), Koech; Phillip K. (Richland, WA), Linehan; John C. (Richland, WA), Rainbolt; James E. (Wenatchee, WA), Bearden; Mark D. (Richland, WA), Zheng; Feng (Richland, WA)
14/ 516,900
October 17, 2014
STATEMENT REGARDING RIGHTS TO INVENTION MADE UNDER FEDERALLY-SPONSORED RESEARCH AND DEVELOPMENT This invention was made with Government support under Contract DE-AC05-76RLO1830 awarded by the U.S. Department of Energy. The Government has certain rights in the invention.