Extruded activated carbon combines powdered activated carbon with a binder, which are fused together and extruded into a cylindrical shaped activated carbon block with diameters from 0.8 to 130 mm. These are mainly used for gas phase applications because of their low pressure drop, high mechanical strength and low dust content. Also sold as CTO filter (Chlorine, Taste, Odor).
Extruded activated carbons (pressed pellets) are mainly made by mixing pulverised anthracite or charcoal with a suitable binder which are extruded at high pressure into a cylindrical shaped form. Sometimes activation catalysts, like potassium hydroxide, are mixed in prior to extrusion to obtain a specific pore structure.
For marketplaces of Extruded Activated Carbon, please go to http://www.acarbons.com/market-places/browse-categories/4/extruded-activated-carbon/