Catalytic Destruction of Gaseous Freons

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Catalytic Destruction of Gaseous Freons Desiree Polson Departments of Chemical and Environmental Engineering and Atmospheric Sciences at The University of Arizona Advised by Dr. Eric Betterton 19 April 2008

Background Information on CFCs Chlorofluorocarbons (CFCs)-Harmless to humans Commonly used until recently (1987)

CFCs are a problem UV light CFCs

The Ozone Hole

The Solution Use of Soil Vapor Extraction (SVE) to treat areas Treatment of CFCs with Pt/Rh catalyst

Soil Vapor Extraction (SVE)

Flow Diagram of Reactor HCl HF

View of Reactor and Catalyst

Discoveries H

Conclusion and Acknowledgments This process does break down CFCs One step closer to helping the stratospheric ozone layer NASA Space Grant Susan Brew Eric Betterton, Eduardo Saez, Robert Arnold, Brian Barbaris Erik Rupp, Marty Willinger Suzanne Richards, Jagoda Vojvodic