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
Baltrus, J. P. - Presenter, National Energy Technology Laboratory
Granite, E. J. - Presenter, US DOE NETL
Pennline, H. W. - Presenter, U.S. Department of Energy, National Energy Technology Laboratory
Stanko, D. - Presenter, National Energy Technology Laboratory
Hamilton, H. - Presenter, Johnson Matthey Technology Centre
Roswell, L. - Presenter, Johnson Matthey Technology Centre
Poulston, S. - Presenter, Johnson Matthey Technology Centre
Smith, A. - Presenter, Johnson Matthey Technology Centre
Chu, W. - 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.