BEHAVIOR OF COAL MINERALS ON STEAM GASIFICATION OF COAL CHAR

摘要

Zn and Pb were released from coal at high temperature (1173 K～), and were not influenced by steam. Se, Sb and Hg were released from coal at low temperature (573～773 K), steam influenced the releasing behavior of these elements. Whereas Se and Sb enhanced, that of Hg depressed in the presence of steam. They are considered that their existence form has correlation.