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Regenerable solid imine sorbents

United States Patent

September 10, 2013
View the Complete Patent at the US Patent & Trademark Office
U.S. Department of Energy - Visit the Office of the Assistant General Counsel for Technology Transfer & Intellectual Property Website
Two new classes of amine-based sorbents are disclosed. The first class comprises new polymer-immobilized tertiary amine sorbents; the second class new polymer-bound amine sorbents. Both classes are tailored to facilitate removal of acid anhydrides, especially carbon dioxide (CO.sub.2), from effluent gases. The amines adsorb acid anhydrides in a 1:1 molar ratio. Both classes of amine sorbents adsorb in the temperature range from about C. upwards to C. and can be regenerated by heating upwards to C.
Gray; McMahan (Pittsburgh, PA), Champagne; Kenneth J. (Monongahela, PA), Fauth; Daniel (Pittsburgh, PA), Beckman; Eric (Aspinwall, PA)
U.S. Department of Energy (Washington, DC), University of Pittsburgh--Of the Commonwealth System of Higher Education (Pittsburgh, PA)
12/ 549,661
August 28, 2009
GOVERNMENT INTERESTS This invention was made with government support pursuant to the employer-employee relationship between the Government and the inventors as U.S. Department of Energy employees at the National Energy Technology Laboratory. The government has certain rights in this invention.