Patent ID: 6558642
Filing Date: 2003-05-06
Classification: B01D,B01J,C22B,Y02C,Y02P,Y10S

Abstract:
A process for removing metals and organic compounds from gaseous streams using an adsorption powder, the adsorption powder characterized as containing a carbon-based powder and an effective amount of cupric chloride suitable for removing metals and organic compounds from vaporous streams, wherein the method comprises the steps of:a) placing a solid phase metals-containing and organic compounds-containing material into a cleaner; b) heating the cleaner containing the solid phase material to form gaseous and solid components of the material, wherein the metals are vaporized and contained in the gaseous component and the organic compounds are reduced to elemental gases; c) transferring the gaseous component to an exhaust cleaning unit/afterburner, and transferring the solid component, to a cooling unit; d) heating the exhaust cleaning unit/afterburner containing the gaseous component to combust the organic compounds to elemental oxides; e) cooling the exhaust cleaning unit/afterburner containing the gaseous component; f) adding the adsorption powder to the exhaust cleaning unit/afterburner to adsorb the metals and provide a metals-free gaseous component, wherein a gaseous component containing adsorption powder is produced; g) transferring the gaseous component-containing adsorption powder to a baghouse; and h) releasing the metals-free gaseous component to the atmosphere, wherein the metals are selected from the group consisting of mercury, lead, nickel, zinc, copper, arsenic and cadmium, and the organic compounds are selected from the group consisting of dioxins and furans.