Slurry phase iron catalysts for indirect coal liquefaction. First semi-annual progress report, July 5, 1995--January 4, 1996
Objectives are to study factors controlling attrition resistance of slurry phase Fe catalysts, synthesize novel precipitated catalysts that overcome some of the limitations of current generation catalysts, and study catalyst-binder interactions using model catalysts. A study of Fe/silica (binder) interactions has been started. Study of effects of Cu on reducibility of Fe catalysts showed that small amounts of Cu can facilitate reduction of Fe{sub 2}O{sub 3} to {alpha}-Fe. Work with Nancy Jackson (Sandia) on carbon deposits in Fe F-T catalysts showed good correlation between peak temperature in TPR and the carbon as seen by TEM. Analyses of samples from Dr. Burtron Davis (U. KY) by XRD and TEM showed that the active catalyst contains small crystallites of iron carbide while the deactivated catalyst had significant transformation into large magnetite crystals. It is felt that improper passivation of these catalysts can lead to mis-identification of the phase in working F-T catalysts.
- Research Organization:
- New Mexico Univ., Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG22-95PC95210
- OSTI ID:
- 231908
- Report Number(s):
- DOE/PC/95210-T1; ON: DE96010919
- Resource Relation:
- Other Information: PBD: 8 Feb 1996
- Country of Publication:
- United States
- Language:
- English
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