An NMR study of the mode of incorporation of ethene into propene in the Fischer-Tropsch reaction over cobalt

Journal Article · Thu Feb 01 04:00:00 EST 1990 · Journal of Catalysis; (USA)

DOI:https://doi.org/10.1016/0021-9517(90)90233-A· OSTI ID:6414540

Percy, L T; Walter, R I ^[1]

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1. Univ. of Illinois, Chicago (USA)

Incorporation of added ethene into the propene fraction formed by the Fischer-Tropsch reaction over cobalt supported on Al metal has been studied. Either the CO or the C{sub 2}H{sub 4} in the feed gas was labeled with {sup 13}C, and the products were studied by {sup 13}C NMR spectroscopy. All of the propene isotopomers which contain the {sup 13}C label could be identified. The formation of products which contain a single-labeled atom from the (doubly labeled) ethene feed was observed; this required that some of the ethene dissociate to C{sub 1} fragments. Among doubly labeled propenes, there was a strong preference for those isotopomers with the labels on adjacent carbon atoms. This could best be accounted for by a model which assumes that some ethene incorporation occurs as a C{sub 2} unit. The spectra gave no evidence that two C{sub 1} units, one from CO and one from ethene, recombine to give C{sub 2}H{sub 4} in the product mixture.

• OSTI ID: 6414540
• Journal Information: Journal of Catalysis; (USA), Journal Name: Journal of Catalysis; (USA) Vol. 121:2; ISSN 0021-9517; ISSN JCTLA
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010408* -- Coal
Lignite
& Peat-- C1 Processes-- (1987-)
ADDITIVES
ALKENES
ALUMINIUM
CARBON 13
CARBON COMPOUNDS
CARBON ISOTOPES
CARBON MONOXIDE
CARBON OXIDES
CATALYSIS
CATALYST SUPPORTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COBALT
DISSOCIATION
ELEMENTS
ETHYLENE
EVEN-ODD NUCLEI
FISCHER-TROPSCH SYNTHESIS
HYDROCARBONS
HYDROGENATION
ISOTOPE APPLICATIONS
ISOTOPES
KINETICS
LIGHT NUCLEI
MAGNETIC RESONANCE
METALS
NUCLEAR MAGNETIC RESONANCE
NUCLEI
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PROPYLENE
REACTION KINETICS
RESONANCE
STABLE ISOTOPES
SYNTHESIS
TRACER TECHNIQUES
TRANSITION ELEMENTS