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TITLE: Development of a stable cobalt-ruthenium Fischer-Tropsch catalyst. Technical progress report No. 12, July 1, 1992--September 30, 1992. AUTHOR: R. R. Frame; H. B. Gala. INST. AUTHOR: UOP, Inc., Des Plaines, IL. SPONSOR: Department of Energy, Washington, DC. LANGUAGE: English PUB. TYPE: Technical Report PUB. COUNTRY: United States SOURCE: Department of Energy [DE], 1992, 52p. NTIS ORDER NO.: DE94005051INW ABSTRACT: The fixed bed pilot plant, the catalyst testing procedure, and the calculations for conversion and selectivities were previously described in the technical progress report covering the period of 3/16/88 to 6/16/88 for Contract DE-AC22-87PC79812. Conversions and hydrocarbon selectivities were calculated using data from an on-line gas chromatography (GC) analyzer. Alcohol selectivities were calculated using data from an on-line boiling point GC analyzer which analyzed the liquid product. The catalysts were prepared via the steps of impregnation, calcination, and reduction on a special Y-zeolite-derived support. The impregnation step consisted of evaporation of metal salts on to the support from an aqueous solution. For one catalyst (No. 6531-188) the metal salts were evaporated on to the support from a reverse micelle solution containing the metal salts. All the catalysts were calcined for four hours at 450C. The calcined catalysts were loaded in the reactor with a diluent (usually quartz sand) and reduced in-situ for four hours in flowing hydrogen at 350(degree)C. The diluent helps in the removal of heat from the very exothermic Fischer-Tropsch reaction. The catalyst preparation method is summarized in detail in Figure 1. For catalyst testing runs discussed in this report and not summarized previously in earlier reports, run summary plots of conversions and selectivities vs hours-on-stream are attached in Appendix A. Catalyst compositions are shown in Table 2 and summary performance data are shown in Tables 3 and 4. REPORT NUMBER: DOE/PC/89869-T11 CONTRACT NUMBER: AC22-89PC89869 |