REVIEW OF METALS AND BINARY OXIDES AS SORBENTS FOR REMOVING SULFUR FROM COAL-DERIVED GASES

Effective methods for removing sulfur from hot, coal-derived gases are being developed for both coal gasification and coal combustion processes. A comprehensive literature review and analysis on this subject was carried out because there appears to be a lack of familiarity among recent investigators with work done prior to the 1980s and work done in other countries. Presented here is information on the historical background and properties of metals and binary oxide compounds. Included are sorbents that contain Ca, Fe, Zn, Cu, Ni, and Mn. The results of thermodynamic calculations and a review of mixed oxide compounds will be covered in future publications.