Study of Fischer-Tropsch synthesis over Fe/SiO/sub 2/: reactive scavenging with pyridine and cyclohexene

Journal Article · Tue Mar 01 04:00:00 EST 1983 · J. Catal.; (United States)

OSTI ID:5355930

Wang, C J; Ekerdt, J G

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 is 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 generates low concentrations of alkyl-substituted cyclohexenes and cyclohexanes consistent with reported scavenging studies over Ru. Pyridine addition to the feed generates alkyl-substituted pyridines. The results suggest that the scavengers react with species involved in chain propagation.

• Research Organization: Univ. of Texas, Austin
• DOE Contract Number: AS05-80ER10720
• OSTI ID: 5355930
• Journal Information: J. Catal.; (United States), Journal Name: J. Catal.; (United States) Vol. 80:1; ISSN JCTLA
• Country of Publication: United States
• Language: English

Related Subjects

090121* -- Hydrocarbon Fuels-- Chemical Synthesis-- (1976-1989)
10 SYNTHETIC FUELS
ALKANES
ALKENES
AZINES
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON MONOXIDE
CARBON OXIDES
CATALYSIS
CHALCOGENIDES
CHEMICAL REACTIONS
CONVERSION
ELEMENTS
FISCHER-TROPSCH SYNTHESIS
HETEROCYCLIC COMPOUNDS
HEXENES
HYDROCARBONS
HYDROGEN
HYDROGENATION
IRON
METALS
METHANE
NONMETALS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PLATINUM METALS
PYRIDINE
PYRIDINES
RUTHENIUM
SCAVENGING
SILICON COMPOUNDS
SILICON OXIDES
SYNTHESIS
TRANSITION ELEMENTS