Fine details on the selectivity and kinetics of the Fischer-Tropsch synthesis over precipitated cobalt catalysts by combination of quantitative gas chromatography and modelling
- Amoco Corp., Naperville, IL (United States)
This report summarizes a part of our work carried out on the conversion of natural gas-derived synthesis gas to liquid fuels. Particularly, we were interested to find a catalyst which can convert dilute synthesis gas - such as obtainable from natural gas by partial oxidation with air - to predominantly liquid products at low pressures. For this purpose we needed to generate fundamental kinetic information on the controllability of the molecular weight distribution, which is defined by the chain growth probability of the reaction, because relatively little information is available on the subject. A wealth of information suggests, that with some exceptions in the low molecular weight regimes, the product distributions can be described by Anderson-Schulz-Flory (ASF) kinetics, using either a single chain growth probability, or separate chain growth probabilities for the light and heavy products. The causes of the {open_quotes}dual{close_quotes} chain growth probabilities still have not been defined. Three causes have been suggested which could account for the dual chain growth probabilities: (1) Differences in the catalytic sites; (2) transport-enhanced 1-olefin readsorption and incorporation into the heavy product fractions; and (3) operating characteristics of the reactor.
- OSTI ID:
- 433268
- Report Number(s):
- CONF-950402-; ISSN 0569-3772; TRN: 97:000007-0032
- Journal Information:
- Preprints of Papers, American Chemical Society, Division of Fuel Chemistry, Vol. 40, Issue 1; Conference: 209. American Chemical Society (ACS) national meeting, Anaheim, CA (United States), 2-6 Apr 1995; Other Information: PBD: 1995
- Country of Publication:
- United States
- Language:
- English
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