Fate of iron and ruthenium complexes deposited in Faujasite-type zeolites
Conference
·
· Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States)
OSTI ID:6319700
The tests were conducted with Fe/sub 3/(CO)/sub 12/ and Ru/sub 3/(CO)/sub 12/ supported on sodium and hydrogen Y zeolites. Under vacuum, the supported iron clusters evolved all carbon monoxide at 50/sup 0/-200/sup 0/C and the ruthenium clusters evolved three carbonyl groups per Ru/sub 3/ cluster below 200/sup 0/C and the other nine ligands at 320/sup 0/-430/sup 0/C. The activity of the untreated supported clusters for the reaction of carbon monoxide and hydrogen to Fischer-Tropsch products in a batch reactor at room temperature and 20 bar was low. The iron and ruthenium catalysts thermally decomposed 200/sup 0/ and 250/sup 0/C, respectively, were active at those temperatures and yielded hydrocarbons in linearly decreasing amounts with increasing chain length to C/sub 9/. Larger iron particles on the outer surfaces of Y zeolites catalyzed the formation of larger amounts of hydrocarbons with more than six carbon atoms, up to C/sub 12/. The results showed that the iron and ruthenium clusters are inactive for the Fischer-Tropsch synthesis if reaction conditions favor their stability within the zeolite cavities, but are good precursors for the formation of small metallic aggregates catalyzing a chain-limited selective formation of hydrocarbons.
- Research Organization:
- Inst. Rech. Catal., Villeurbanne Cedex
- OSTI ID:
- 6319700
- Report Number(s):
- CONF-800814-
- Conference Information:
- Journal Name: Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States) Journal Volume: 25:4
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
CATALYST SUPPORTS
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL REACTIONS
COMPLEXES
DATA
DECOMPOSITION
EXPERIMENTAL DATA
FAUJASITE
FISCHER-TROPSCH SYNTHESIS
INFORMATION
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
IRON COMPLEXES
LIGANDS
MATERIALS
MINERALS
NUMERICAL DATA
RUTHENIUM COMPLEXES
SILICATE MINERALS
SURFACE PROPERTIES
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPLEXES
ZEOLITES
400201 -- Chemical & Physicochemical Properties
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
CATALYST SUPPORTS
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL REACTIONS
COMPLEXES
DATA
DECOMPOSITION
EXPERIMENTAL DATA
FAUJASITE
FISCHER-TROPSCH SYNTHESIS
INFORMATION
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
IRON COMPLEXES
LIGANDS
MATERIALS
MINERALS
NUMERICAL DATA
RUTHENIUM COMPLEXES
SILICATE MINERALS
SURFACE PROPERTIES
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPLEXES
ZEOLITES