TITLE: Novel Fischer-Tropsch Slurry Catalysts and Process Concepts for Selective Transportation Fuel Production. Quarterly Technical Progress Report, 1 October-31 December 1985.

AUTHOR: W. E. Carroll;   N. Cilen;   H. P. Withers.

INST.  AUTHOR: Air Products and Chemicals, Inc., Allentown, PA.

SPONSOR: Department of Energy, Washington, DC.

LANGUAGE: English

PUB.  TYPE: Technical Report

PUB.  COUNTRY: United States

SOURCE: Department of Energy [DE],  Jul 86,  245p.

NTIS ORDER NO.: DE87001792/INW

ABSTRACT:

In the fifth quarter work continued on the two major tasks: Task 2 - Development of Improved Supported Catalyst Compositions and Task 3 - Slurry Reactor Kinetic Studies. Four catalysts were prepared during this quarter. A Co/Zr/SiO sub 2 catalyst was prepared from a more conventional cobalt source (cobalt nitrate) to establish a comparative basis for the silica-supported, cobalt carbonyl based catalysts. A Zr-promoted Ru catalyst was prepared on silica, since the silica support provided enhanced performance for the cobalt catalyst. TiO sub 2 was examined in a dual purpose support/promoter role for the Co catalyst by preparing Co sub 2 (CO) sub 8 on TiO sub 2 . A Zr-promoted, Fe sub 3 (CO) sub 12 on silica catalyst was prepared to establish the inherent water-gas shift activity of this type of Fe-based catalyst. During this quarter five gas phase screening tests were performed and slurry screening tests were performed on three catalysts and an extended test was initiated on a fourth catalyst. Results are discussed. Catalyst characterization during this quarter centered around surface area determination and H sub 2 chemisorption on the Co/Zr/SiO sub 2 catalyst. The surface area was 316 m sup 2 /g, which was 50% greater than the Co/Zr/Al sub 2 O sub 3 catalyst and likely accounts for some of its enhanced activity. The Co/Zr/SiO sub 2 catalyst had an active metal surface area which was an order of magnitude larger than that of the alumina catalyst, indicative of improved dispersion. The chemisorption data was similar to literature values reported for Co on silica. Data from the slurry test of the H sub 2 -activated Co/Zr/Al sub 2 O sub 3 basecase catalyst was fitted to two kinetic expressions. 7 refs., 50 figs., 105 tabs. (ERA citation 12:007993)

REPORT  NUMBER: DOE/PC/70030-T4

CONTRACT  NUMBER: AC22-84PC70030