2009 Spring Meeting & 5th Global Congress on Process Safety
(113e) Surface Characterization of Palladium-Alumina Sorbents for High Temperature Capture of Mercury and Arsenic From Fuel Gas
Authors
John P. Baltrus - Presenter, National Energy Technology Laboratory
Evan J. Granite - Presenter, US DOE NETL
Henry W. Pennline - Presenter, U.S. Department of Energy, National Energy Technology Laboratory
Dennis Stanko - Presenter, National Energy Technology Laboratory
Hugh Hamilton - Presenter, Johnson Matthey Technology Centre
Liz Roswell - Presenter, Johnson Matthey Technology Centre
Stephen Poulston - Presenter, Johnson Matthey Technology Centre
Andrew Smith - Presenter, Johnson Matthey Technology Centre
Wilson Chu - Presenter, Johnson Matthey
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.