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Regenerable solid imine sorbents

United States Patent

8,530,375
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 20.degree. C. upwards to 90.degree. C. and can be regenerated by heating upwards to 100.degree. 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
20100292072
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.