Impregnated Carbons for the Adsorption of H2s and Mercaptans
نویسنده
چکیده
Activated carbon has been used for many years for the adsorption of H2S and Mercaptans from natural gas streams, carbon dioxide, and sewage vents. It is widely thought that the carbon pore surface catalyses the oxidation of HzS to elemental sulfur and higher oxidized forms of su l fd2 . However, due to the poor loading capacities achieved at ambient conditions, most commercial activated carbon employed for H2S adsorption contain some sort of impregnant, such as NaOH, KOH, or KMn04, to enhance the loading capacity on the carbon.
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