Patent ID: 6365112
Filing Date: 2002-04-02
Classification: B01D,B01J,B03C

Abstract:
An improvement in an electrostatic precipitator for removing contaminants from a stream of contaminant-laden gas conducted through a conduit in the electrostatic precipitator, the electrostatic precipitator including a longitudinally-extending discharge electrode placed within the conduit, and a collector electrode spaced laterally from the discharge electrode for establishing an electrostatic field between the discharge electrode and the collector electrode in response to a prescribed electrical potential between the discharge electrode and the collector electrode, the improvement comprising:a manifold passage extending longitudinally within the discharge electrode; a plurality of electrode elements located along the discharge electrode and projecting laterally from the discharge electrode into the conduit and toward the collector electrode, each electrode element terminating in at least one sharp-edged tip located within the conduit and spaced laterally from the collector electrode for establishing a corona discharge active zone juxtaposed with the tip in response to the prescribed electrical potential; an injector passage extending laterally through the discharge electrode at each electrode element, each injector passage communicating with the manifold passage and juxtaposed with the tip of a corresponding electrode element; and a source of reagent fluid communicating with the manifold passage for distributing reagent fluid through each injector passage toward each tip such that reagent fluid passes through the corona discharge active zone juxtaposed with each tip for activating the reagent fluid as the reagent fluid is injected into the stream of contaminant-laden gas.