TITLE: Technology development for cobalt F-T catalysts. Topical report No.1, Effects of supports and promoters on cobalt F-T catalyst behavior in fixed bed vs. slurry bubble column reactors.

AUTHOR: R. Oukaci;   G. Marcelin;   J. G. Goodwin.

INST.  AUTHOR: Energy International, Inc., Pittsburgh, PA.

SPONSOR: Department of Energy, Washington, DC.

LANGUAGE: English

PUB.  TYPE: Technical Report

PUB.  COUNTRY: United States

SOURCE: Department of Energy [DE],  17 Jan 95,  5p.

NTIS ORDER NO.: DE95009368INW

NOTES: American Chemical Society national meeting (208th), Washington, DC (United States), 21-26 Aug 1994. Sponsored by Department of Energy, Washington, DC.

ABSTRACT:

A series of cobalt-based F-T catalysts supported on alumina, silica, or titania were prepared with Ru and/or ZrO(sub 2) as promoters. All catalysts were extensively characterized by different methods. The catalysts were evaluated in terms of their activity and selectivity both in fixed bed and slurry bubble column reactors. Similar trends were observed in both reactors for support effects. However, this was not the case for the effects of promoters. Noble metal promotion effects were much more accentuated in the fixed bed reactor than under slurry bubble column reaction conditions, while the opposite seemed to hold true in the case of ZrO(sub 2) promotion effects, at least for SiO(sub 2)-supported Co catalysts.

REPORT  NUMBER: CONF-940813-40

CONTRACT  NUMBER: AC22-92PC92108