11. Development of COS and H_2S Removal by Coal Char and Active Carbon

Abstract

Simultaneous removal of COS and H_2S was studied at 400℃ using a commercial active carbon and a gasified coal char. The char obtained from CO_2 gasification of a brown coal showed high performance in the removal of COS and H_2S. Demineralization of the coal lowered the ability of the char to remove H_2S, but showed little influence on the removal of COS. It indicates that COS and H_2S may be removed through different mechanisms.