TITLE: Novel Fischer-Tropsch Slurry Catalysts and Process Concepts for Selective Transportation Fuel Production: Quarterly Technical Progress Report, 1 January-31 March 1986.

AUTHOR: W. E. Carroll;   K. F. Eliezer;   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],  Jan 87,  231p.

NTIS ORDER NO.: DE87005648/INW

ABSTRACT:

In the sixth quarter work continued on the three major tasks: Task 2 - Development of Improved Supported Catalyst Compositions; Task 3 - Slurry Reactor Kinetic Studies; and Task 4 - Fuel Product Characterization. To study the effect of Co-to-promoter ratio on the performance of the silica-supported catalysts, four Co/Zr/silica catalysts were prepared by varying the Zr loading, with the Co loading held at 4%. Gas phase testing of this series of catalysts was completed this quarter. It appears that the optimum Co/Zr ratio is near 0.5 for gas phase performance, although lower ratios were not investigated. The Fe sub 3 (CO) sub 12 /Zr(OPr) sub 4 /silica catalyst was gas phase tested to determine the inherent water-gas shift activity. This catalyst showed very little Fischer-Tropsch activity over the entire 220 deg C to 280 deg C temperature range. Slurry screening tests were performed on two catalysts. One was a Zr-promoted ruthenium catalyst supported on silica and the other was on a Zr-promoted, cobalt catalyst supported on silica. The extended slurry test which was begun last quarter continued this quarter. The same load of catalyst was run at 240 sup 0 C for 1000 hours and then at 260 deg C for an additional 1200 hours. At each temperature, the catalyst underwent a gradual decline in activity. All liquid organic and wax products were collected during the initial 1000 hours of operation of the Co sub 2 (CO) sub 8 /Zr(OPr) sub 4 /SiO sub 2 catalyst in the extended slurry test No. 8862-1-31, in order to isolate and characterize the diesel fuel fraction. The diesel fuel produced during this period of operation had a fairly high flash point, essentially no water or sediment, low sulfur, and negligible ash and carbon residue. It showed very low corrosiveness and had an outstanding cetane index. As a result it met all specifications for the highest quality diesel fuel oil except for very small variations from viscosity, cloud point and 90% boiling point. 5 refs., 53 figs., 98 tabs. (ERA citation 12:019904)

REPORT  NUMBER: DOE/PC/70030-T5;   CDS-200-94-REV.2

CONTRACT  NUMBER: AC22-84PC70030