TITLE: Fischer-Tropsch Synthesis in Slurry Reactor Systems. Quarterly Report, May 1, 1984-July 31, 1984.

AUTHOR: C. N. Satterfield;   T. Bartos;   R. Hanlon;   G. A. Huff;   D. Matsumoto.

INST.  AUTHOR: Massachusetts Inst. of Tech., Cambridge.

SPONSOR: Department of Energy, Washington, DC.

LANGUAGE: English

PUB.  TYPE: Technical Report

PUB.  COUNTRY: United States

SOURCE: Department of Energy [DE],  1984,  60p.

NTIS ORDER NO.: DE84015438/INW

ABSTRACT:

We suspect that a number of reports in the published literature of catalyst preparations that supposedly minimize wax formation are erroneous in that wax may actually have accumulated in catalyst pores and that insufficient time may have been allowed for the effluent to represent true intrinsic kinetics. Mathematical simulations show the effect of pressure, temperature, rate constant, feed composition, space velocity and Flory parameter alpha , on time required for pores to fill, upon liquid product distribution and vapor composition leaving the reactor. The pore filling rate and condensed product composition vary with position through the reactor but not with time. The maximum filling rate does not occur at the same position in the bed as the maximum synthesis rate. For reaction conditions of industrial interest, the greatest effect is caused by the assumed carbon number distribution of the products. A rigorous parameter to generalize the results is not immediately evident. We reported studies of the effect of the nature of the liquid on the activity and selectivity of a reduced fused magnetite catalyst. For interpretation of such studies it is necessary to have data on solubilities of hydrogen and carbon monoxide in the liquids of interest. New data at elevated temperatures and pressure are reported for octacosane, phenanthreene and Fomblin, a perfluorinated polyether, and compared to previous literature on a variety of liquids. When hydrogen solubilities are reported on a volumetric basis, substances of a similar chemical nature have very similar solubilities.  (ERA citation 09:043068)

REPORT  NUMBER: DOE/PC/40771-13

CONTRACT  NUMBER: FG22-81PC40771