Preparation of ferric-sulfide-based catalysts using an aerosol technique

Conference · Fri Dec 01 04:00:00 EST 1995

OSTI ID:126767

Stiller, A H; Dadyburjor, D B; Stinespring, C D ^[1]

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1. West Virginia Univ., Morgantown, WV (United States); and others

Iron sulfides are used as catalysts for direct coal liquefaction. They are reasonably active, cheap, and environmentally benign. This permits their use as once-through, non-regenerated catalysts. Our work in this area is based on the products of disproportionation of ferric sulfide, produced in sufficiently small particle sizes. The small particle sizes have been produced by in-situ impregnation or by using an aerosol reactor. This talk will concentrate on the aerosol process. The resulting particles have been characterized and used as catalysts for coal liquefaction. The effects of precursor solution concentration and the pressure and temperature in the aerosol reactor on the performance of the catalysts have been noted. We have recently investigated the effect of adding small amounts of a second metal to the catalyst. Multi-metal catalysts prepared to date with the aerosol technique include Fe-Cu-S and Fe-Zn-S, each with 10% additive, and Fe-Cu-Zn-S, with 10% Cu and 5% Zn.

• OSTI ID: 126767
• Report Number(s): CONF-950402--
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
36 MATERIALS SCIENCE
AEROSOLS
CATALYSTS
CATALYTIC EFFECTS
COAL LIQUEFACTION
COPPER SULFIDES
IRON SULFIDES
PERFORMANCE
ZINC SULFIDES