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AssigneeGeneral Electric Environmental Services, Inc.
InventorsMitchell R. Cohen, Eli Gal
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A process and system for simultaneously removing from a gaseous mixture, sulfur oxides by a solid sulfur oxide acceptor sorbent on a porous carrier, nitrogen oxides by ammonia gas and particulate matter by filtration and for the regeneration of loaded solid sulfur oxide acceptor sorbent. Finely-divided solid sulfur oxide acceptor sorbent is entrained in a gaseous mixture to deplete sulfur oxides from the gaseous mixture, the finely-divided solid sulfur oxide acceptor sorbent being dispersed on a porous carrier material having a particle size up to about 200 microns. In the process, the gaseous mixture is optionally prefiltered to remove particulate matter and thereafter finely-divided solid sulfur oxide acceptor sorbent is injected into the gaseous mixture to form an entrained bed. Ammonia gas is also injected into the exhaust gas stream. A filter separates spent solid sorbent and particulate matter from clean gas. A classifier is used to separate mixtures of spent sorbent from particulate matter. A regenerator receives spent sorbents for regeneration and regenerated finely-divided solid sorbent is passed from the regenerator to the entrained bed reactor. A preferred sorbent is copper oxide on porous alumina carrier.
A regenerative system for simultaneously removing time a combustion exhaust gas stream, particulate matter by means of a filter, oxides of nitrogen by means of ammonia gas and sulfur oxides by means of a solid sorbent on a porous carrier, and for regenerating spent solid absorbent on a porous carrier, comprising:
Dependencies are inferred from the claim text.