Metal Sorbents for High Temperature Mercury Capture from Fuel Gas

The mercury (Hg) removal capacities of platinum (Pt) and palladium (Pd) supported on alumina at a range of different metal loadings from 2 to 9 wt% using Hg vapour in a simulated fuel gas feed were determined. Both Pt and Pd acted as Hg sorbents from fuel gas at temperatures between 204 and 371 degr...

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Bibliographic Details
Published in:Fuel (Guildford) 2007-09, Vol.86 (4), p.2201-2201
Main Authors: Poulston, Stephen, Granite, Evan J, Pennline, Henry W, Myers, Christina R, Stanko, Dennis P, Hamilton, Hugh, Rowsell, Liz
Format: Article
Language:English
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Summary:The mercury (Hg) removal capacities of platinum (Pt) and palladium (Pd) supported on alumina at a range of different metal loadings from 2 to 9 wt% using Hg vapour in a simulated fuel gas feed were determined. Both Pt and Pd acted as Hg sorbents from fuel gas at temperatures between 204 and 371 degree C, though Pd was a significantly better sorbent than Pt. For both Pt and Pd, the Hg adsorption capacity decreased with increasing sample temperature and increased with metal loading, though the Hg capacity remained proportional to the Pt or Pd metal loading. Hg adsorption on the Pd/Al sub(2)O sub(3) sorbents led to a solid solution of Hg in Pd and a substantial increase in the lattice parameter according to X-ray diffraction (XRD) data.
ISSN:0016-2361