Composite-bed reactor for upgrading coal-derived liquids. Quarterly report No. 3, April 1-June 30, 1984

Technical Report · Mon Jul 09 04:00:00 EDT 1984

DOI:https://doi.org/10.2172/6744413· OSTI ID:6744413

Crynes, B. L.; Seapan, M.

Five experimental runs were conducted as a part of the temperature and catalyst zoned concept. These experiments were conducted at 10.3 MPa (1500 psig), with the bottom zone reactor at 400/sup 0/C (752/sup 0/F), LHST of 1.9 h, with 20% (wt) of the catalyst in the top zone and utilizing a variable temperature in the top zone 400 to 500/sup 0/C (752 to 932/sup 0/F). Excessive reactor plugging occurred when the top zone was operated at 500/sup 0/C (932/sup 0/F). This suggests an upper limit when utilizing the feedstock of 15% (wt) mixture of SRC in a coal liquefaction process solvent, and with a commercial grade catalyst, Armak KF-153-S, a Ni-Mo type. All temperature zoning combinations showed a loss in catalyst activation over the experimental run durations of 72 h. Activity loss was rapid in the first 30 to 40 h and gradual thereafter. This activity loss was caused by carbonaceous material and metals deposition. Increasing the top zone temperature from 400 (752/sup 0/F) to 450/sup 0/C (842/sup 0/F) provided a beneficial effect on HDN and HDM activity. A further temperature increase was detrimental because of excessive coking and possible thermodynamic equilibrium limitations. The one reference run that was conducted for the catalyst zone study utilized 400/sup 0/C (752/sup 0/F) in both zones, the same feedstock, catalyst, and operational conditions as reported above. Sample analyses are not yet completed. 7 references, 8 figures, 6 tables.

• Research Organization: Oklahoma State Univ., Stillwater (USA). School of Chemical Engineering
• DOE Contract Number: FG22-83PC60787
• OSTI ID: 6744413
• Report Number(s): DOE/PC/60787-3; ON: DE84014695
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL REACTIONS
CHEMICAL REACTORS
CHROMIUM
COAL LIQUIDS
DATA
DEACTIVATION
DENITRIFICATION
DEPOSITION
ELEMENTS
EXPERIMENTAL DATA
FLUIDS
HIGH PRESSURE
HIGH TEMPERATURE
HYDROGENATION
INFORMATION
IRON
LIQUIDS
METALS
MOLYBDENUM
NICKEL
NUMERICAL DATA
PROCESSING
REFINING
RESEARCH PROGRAMS
SRC PROCESS
TITANIUM
TRANSITION ELEMENTS