Iron alloy Fischer-Tropsch catalysts. 4. Reaction and selectivity studies of the FeCo system

Journal Article · Wed Feb 01 04:00:00 EST 1984 · J. Catal.; (United States)

DOI:https://doi.org/10.1016/0021-9517(84)90224-0· OSTI ID:7124673

Arcuri, K B; Schwartz, L H; Piotrowski, R D; Butt, J B

Iron-cobalt alloys have been reported to have enhanced C/sub 2/-C/sub 3/ selectivity in the synthesis reaction for both supported and unsupported materials. Much of the available data are, however, at total pressures of 1 atm and low conversions. This study presents results obtained with a representative FeCo/SiO/sub 2/ catalyst in comparison with the supported pure metal components at 523/sup 0/K and pressures up to 14 atm. Major results are that the conversion dependence of selectivity noted at 1 atm is suppressed at higher pressures and the iron-containing materials become good methanol producers at higher pressures, largely at the expense of methane formation. In terms of CO conversion the alloy catalyst resembles Fe/SiO/sub 2/ at atmospheric pressure and Co/SiO/sub 2/ at higher pressure; however, for oxygenate production just the opposite pertains. The enhanced olefin selectivity for FeCo/SiO/sub 2/, observed previously in experiments at atmospheric pressure, is not maintained at higher pressures.

• Research Organization: Northwestern Univ., Evanston, IL
• DOE Contract Number: AC02-78ER04993
• OSTI ID: 7124673
• Journal Information: J. Catal.; (United States), Journal Name: J. Catal.; (United States) Vol. 85:2; ISSN JCTLA
• Country of Publication: United States
• Language: English

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10 SYNTHETIC FUELS
ALCOHOLS
ALKANES
ALLOYS
CATALYSIS
CATALYST SUPPORTS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL PREPARATION
CHEMICAL REACTIONS
COBALT ALLOYS
DATA
EXPERIMENTAL DATA
FISCHER-TROPSCH SYNTHESIS
HYDROCARBONS
HYDROXY COMPOUNDS
INFORMATION
IRON ALLOYS
METHANE
METHANOL
MINERALS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PRESSURE DEPENDENCE
SILICA
SILICON COMPOUNDS
SILICON OXIDES
SYNTHESIS
TEMPERATURE EFFECTS