GC-Splus Darco H2S Catalytic Activated Carbon for Odor Control
Catalytic carbons are the newest class of activated carbons for odor control. These carbons also exhibit an enhanced capacity for H2S, but achieve this increased capacity differently than do caustically impregnated or blended carbons. Catalytic carbons convert adsorbed H2S into sulfuric acid and sulfurous acid, which is stored more efficiently on carbon than is H2S (but not as efficiently as elemental sulfur). A key advantage of catalytic carbons is that the converted acids are water soluble, allowing the carbon to be regenerated in place by simply washing it with water. Catalytic carbons do not have impregnants and therefore do not exhibit the reduced organic odor capacity nor increased bed fire potentials of the impregnated carbons.