Characterization and Activity of Ferric-Sulfide-Based Catalyst in Model Reactions of Direct Coal Liquefaction: Effect of Preparation Conditions

摘要

We have studied the activity of various ferric-sulfide-based catalysts in model hydrogenation and cracking reactions under conditions typical of direct coal liquefaction (DCL). The catalysts used were mixtures of FeS_2 (pyrite, PY) and nonstoichiometric FeSx (pyrrhotite, PH) obtained by high-temperature disproportionation of ferric sulfide in a nitrogen atmosphere or a hydrogen atmosphere.