Novel Fischer-Tropsch slurry catalysts and process concepts for selective transportation fuel production: Quarterly technical progress report, 1 July 1985-30 September 1985
Four catalysts were prepared. Silica was examined as a support for the standard Co/sub 2/(CO)/sub 8//Zr(OPr)/sub 4/ composition. A mixed Co/Fe catalyst on zirconated silica was prepared from Co/sub 2/(CO)/sub 8/ and Fe/sub 3/(CO)/sub 12/, rather than from the (FeCo/sub 3/(CO)/sub 12/)/sup -/ anion. The use of Ti in place of Zr as the promoter was examined with the silica support. Further work on alternate supports was completed with the preparation of Co/sub 2/(CO)/sub 8/ and Zr(OPr)/sub 4/ on MgO 3.6SiO/sub 2/. Gas-phase screening was completed on three catalysts during the quarter. The effect of increasing the cobalt loading from 4 to 11 wt % for the Co/Zr/Al/sub 2/O/sub 3/ composition was to improve the bulk activity but lower the specific activity and to slightly shift the hydrocarbon selectivity to higher molecular weight products. The use of silica as a support for the mixed Co/Fe catalyst also provided an improvement in the Fischer-Tropsch activity but did not enhance the water-gas shift activity. Three catalysts were screened in the slurry reactor. A kinetic data analysis program was developed to aid in the analysis of catalyst data from the laboratory reactor tests operating at steady state. The required specifications include reaction stoichiometry and kinetics, the necessary reactor operating parameters, inlet conditions and gas phase product concentrations. Options include choice of fixing or fitting kinetic parameters and regressing rate coefficients in a normalized or standard fashion. Data from the catalyst slurry screening tests and more importantly the extended tests will be routinely analyzed for kinetic correlations. 5 refs., 50 figs., 105 tabs.
- Research Organization:
- Air Products and Chemicals, Inc., Allentown, PA (USA)
- DOE Contract Number:
- AC22-84PC70030
- OSTI ID:
- 6064808
- Report Number(s):
- DOE/PC/70030-T8; ON: DE88000434
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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