Study of Fischer-Tropsch synthesis over a silica supported iron catalyst through the use of reactive scavengers
Technical Report
·
OSTI ID:5720917
The synthesis of hydrocarbons from H/sub 2/ and CO was studied on a silica-supported Fe catalyst. The synthesis was carried out at 1.54 atm and 200 to 255/sup 0/C in a differential reactor. Conversion of CO never exceeded 2%. The working catalyst was achieved by transforming Fe/sub 2/O/sub 3/ into a mixture of Fe/sub 3/O/sub 4/, bulk carbides, and iron under synthesis conditions. Synthesis product distributions and the rate of methane formation are reported. Trends in CO/sub 2/ formation and the presence of cyclic hydrocarbons, saturated and unsaturated, suggest the presence of some Fe/sub 3/O/sub 4/ at the catalyst surface. Cyclohexene addition to the feed generated low concentrations of alkyl-substituted cyclohexene and cyclohexanes. Pyridine addition to the feed generated alkyl-substituted pyridines. Scavenged products were not formed from interactions between the scavenger and synthesis products on support, indicating that the scavengers react with species involved in chain propagation. Pyridine was used to scavenge C/sub 1/ to C/sub 3/ alkyl species from the catalyst surface. The ..cap alpha..-alkylpyridine distributions were proportional to the dependence of C/sub 1/ to C/sub 3/ Fischer-Tropsch products. Two probable Fischer-Tropsch mechanisms were derived.
- Research Organization:
- Texas Univ., Austin (USA)
- DOE Contract Number:
- AS05-80ER10720
- OSTI ID:
- 5720917
- Report Number(s):
- DOE/ER/10720-11; ON: DE83015145
- Country of Publication:
- United States
- Language:
- English
Similar Records
Study of Fischer-Tropsch synthesis over a silica supported iron catalyst through the use of reactive scavengers
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Thesis/Dissertation
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Fri Dec 31 23:00:00 EST 1982
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OSTI ID:6704526
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Journal Article
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Mon Feb 28 23:00:00 EST 1983
· J. Catal.; (United States)
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Study of Fischer-Tropsch synthesis through the use of surface intermediate scavengers. Progress report, August 1, 1982-April 1, 1983
Technical Report
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Fri Dec 31 23:00:00 EST 1982
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OSTI ID:6466789
Related Subjects
090121* -- Hydrocarbon Fuels-- Chemical Synthesis-- (1976-1989)
10 SYNTHETIC FUELS
ALKENES
AZINES
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON MONOXIDE
CARBON OXIDES
CATALYSTS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CYCLOALKENES
ELEMENTS
FISCHER-TROPSCH SYNTHESIS
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
IRON
IRON COMPOUNDS
IRON OXIDES
KINETICS
METALS
MINERALS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PYRIDINES
REACTION KINETICS
SILICA
SILICON COMPOUNDS
SILICON OXIDES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
10 SYNTHETIC FUELS
ALKENES
AZINES
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON MONOXIDE
CARBON OXIDES
CATALYSTS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CYCLOALKENES
ELEMENTS
FISCHER-TROPSCH SYNTHESIS
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
IRON
IRON COMPOUNDS
IRON OXIDES
KINETICS
METALS
MINERALS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PYRIDINES
REACTION KINETICS
SILICA
SILICON COMPOUNDS
SILICON OXIDES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS