| abstract |
Achieving a three-dimensional cross-sectional effective range of passages through which SO x and / or HCl-containing gases pass with a short but effective residence time at temperatures effective to provide significant sulfur dioxide and / or HCl abatement by high- A dry process, apparatus, composition and system for reducing the release of sulfur oxides, in particular sulfur dioxide and / or HCl, is provided by a process utilizing a combination of a dolomite hydrate absorbent and an absorbent dopant introduced thereto. A once-through dry process allows the sorbent and absorbent dopant to be introduced as a dry or preferably as a slurry to enable uniform treatment. Preferred absorbent dopants include water-soluble or water-dispersible copper and / or iron compositions that can be heated to the active form in situ by the flue gas being treated. |