John P. Baltrus1, Evan J. Granite2, Henry W. Pennline1, Dennis Stanko3, Hugh Hamilton4, Liz Roswell4, Stephen Poulston4, Andrew Smith4, and Wilson Chu5. (1) U.S. Department of Energy, National Energy Technology Laboratory, P O Box 10940, 626 Cochrans Mill Road, Pittsburgh, PA 15236, (2) United States Department of Energy, National Energy Technology Laboratory, PO Box 10940, M/S 58-106, Pittsburgh, PA 15236-0940, (3) National Energy Technology Laboratory, U.S. Department of Energy, PO Box 10940, M/S 58-106, Pittsburgh, PA 15236-0940, (4) Johnson Matthey Technology Centre, Blounts Court, Sonning Common, Reading , RG4 9NH, United Kingdom, (5) Johnson Matthey, 1397 King Road, West Chester, PA 19380
Palladium is an attractive sorbent candidate for the removal of mercury from fuel gases at elevated temperatures. In addition, recent results suggest that palladium also has excellent potential for arsenic, phosphorus and selenium capture from fuel gases, making it capable of multi-pollutant capture. X-ray photoelectron spectroscopy (XPS) has been employed to characterize a series of palladium on alumina sorbents exposed to various simulated fuel gas compositions. The recent results for characterizations of sorbent surfaces for mercury and arsenic will be described.