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Method and system for reactivating catalysts and a method and system for recycling supercritical fluids used to reactivate the catalysts

United States Patent Application

*** PATENT GRANTED ***
20040063567
7,407,905
A1
View the Complete Application at the US Patent & Trademark Office
Idaho National Laboratory - Visit the Technology Transfer and Commercialization Office Website
A method of reactivating a catalyst, such as a solid catalyst or a liquid catalyst. The method comprises providing a catalyst that is at least partially deactivated by fouling agents. The catalyst is contacted with a fluid reactivating agent that is at or above a critical point of the fluid reactivating agent and is of sufficient density to dissolve impurities. The fluid reactivating agent reacts with at least one fouling agent, releasing the at least one fouling agent from the catalyst. The at least one fouling agent becomes dissolved in the fluid reactivating agent and is subsequently separated or removed from the fluid reactivating agent so that the fluid reactivating agent may be reused. A system for reactivating a catalyst is also disclosed.
Ginosar; Daniel M. (Idaho Falls, ID), Thompson; David N. (Idaho Falls, ID), Anderson; Raymond P. (Idaho Falls, ID)
10/ 613,719
July 3, 2003
[0002] The United States Government has rights in the following invention pursuant to Contract No. DE-AC07-99ID13727 between the U.S. Department of Energy and Bechtel BWXT Idaho, LLC.