TITLE: Catalyst and Reactor Development for a Liquid Phase Fischer-Tropsch Process. Quarterly Technical Progress Report, 1 July 1983-30 September 1983.

AUTHOR: B. W. Brian;   W. E. Carroll;   N. Cilen;   R. Pierantozzi;   A. F. Nordquist.

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

SPONSOR: Department of Energy, Washington, DC.


PUB.  TYPE: Technical Report

PUB.  COUNTRY: United States

SOURCE: Department of Energy [DE],  Nov 84,  50p.



Two major tasks of the contract continued: (1) slurry catalyst development, and (2) slurry reactor design studies. The second extended slurry test, using a proprietary catalyst was completed. The results were not consistent with a previous short term test of this catalyst where high activity and yields in the diesel fuel region equal to or greater than the Schulz-Flory maximum were observed. The increased methane production and lower bulk activity over the previous test may have been the result of a variation in the surface active species of this catalyst. A short term (21 day) slurry test was carried out on another modified conventional catalyst. Parametric gas phase screening results were concluded for four additional catalysts, and the optimum preparation and activation methods for diesel fuel selectivity were chosen. In the hydrodynamic studies, work in the 12 inch Cold Flow Simulator continued. The following observations and/or conclusions were obtained: superficial gas velocity is the major factor for determining gas holdup; the major determining factor of the solids concentration profile in a slurry bed is particle size; heat transfer coefficients for the two-phase isoparaffin/N sub 2 were 64% of that predicted by Deckwer's correlation and for the three-phase Fe sub 2 O sub 3 /isoparaffin, the results were better at 71%; bubble diameter measurements were obtained using a double hot film probe; the Air Products gas holdup correlation was incorporated into Deckwer's model of the three phase bubble column. A simulation utilizing kinetic data from an Air Products diesel fuel selective catalyst, under Rheinpreussen conditions, resulted in doubling the space time yield of the Rheinpreussen base case catalyst. 9 references, 12 figures, 8 tables. (ERA citation 10:012627)