TITLE: Catalyst and Reactor Development for a Liquid-Phase Fischer-Tropsch Process. Quarterly Technical Progress Report, 1 January 1983-31 March 1983.

AUTHOR: P. N. Dyer;   R. Pierantozzi;   B. W. Brian;   A. F. Nordquist; R. L. Parsons.

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],  Sep 83,  58p.

NTIS REPORT NO: DE84001069INW

ABSTRACT:

Two major tasks continued in the APCI/US DOE contract, Catalysts and Reactor Development for a Liquid Phase Fischer-Tropsch Process: (1) Slurry Catalyst Development; and (2) Slurry Reactor Design Studies. The first extended slurry test was continued using a proprietary catalyst. The results showed that it was possible to produce yields in the diesel fuel region equal to or greater than the Schulz-Flory maximum, without further optimization. Low deactivation rates were observed. Kinetic rate constants were derived from the CSTR experiments, and used in a computer simulation to predict conversions from bubble column operation under Rheinpreussen conditions. Short term (21 day) slurry tests were carried out on two other catalysts, optimized by the screening program. Parametric gas phase screening results were concluded for two additional modified conventional catalysts, and the optimum preparation and activation methods for diesel fuel selectively were chosen. In the hydrodynamic studies, work in the 5'' column was completed with measurements on the Fe sub 2 O sub 3 /water slurries. In the 12'' column, fitted with 7 heat transfer tubes, hydrodynamic parameters were determined for slurries of Fe sub 2 O sub 3 in paraffin and water, and SiO sub 2 in water. Gas holdups were close to the Akita and Yoshida correlation for the hydrocarbon slurries, but lower for the aqueous ones. Solid concentration profiles, modelled by the sedimentation model, gave evidence of particle agglomeration in SiO sub 2/hydrocarbon slurries, underlining the need to use chemically similar slurries in cold-flow modelling work. In the 5'' column, solid and liquid dispersion coefficients were found to be equal. (ERA citation 09:000028)

REPORT  NUMBER: DOE/PC/30021-T13

CONTRACT  NUMBER: AC22-80PC30021