Commercial scale expanded bed hydroprocessing of Solvent Refined Coal (SRC) extract. October monthly technical progress report. [Ni/Mo, Co/Mo, Ni/W]

Technical Report · Tue Nov 01 04:00:00 EST 1977

DOI:https://doi.org/10.2172/5294764· OSTI ID:5294764

Potts, J. D.

Catalyst screening runs of two additional commercially available desulfurization/denitrogenation catalysts (Ni/Mo-B and Ni/Mo-C) have been completed. A total of three nickel-molybdenum, two cobalt-molybdenum, and one nickel-tungsten catalyst was included in the catalyst screening program. Within the constraints of the 10-day maximum run duration for individual catalyst screening runs, the nickel-molybdenum catalyst (Ni/Mo-A) was the best catalyst tested to date for desulfurization and denitrogenation (approximately 75 weight percent pseudo-conversion of 850/sup 0/F+ material at a denitrogenation activity of approximately 75 percent). After eight 24-hour periods of operation for Run LCF-33 (Ni/Mo-B), the average reactor temperatures were raised in two steps to 840/sup 0/F to 810 to 825, then 825 to 840/sup 0/F. The apparent effect of increased temperature was merely to arrest the loss of denitrogenation activity which was occurring during the first eight periods. However, when the data was normalized to 810/sup 0/F, it was noted that the catalyst still showed a loss in denitrogenation activity at constant temperature. The Ni/Mo-A catalyst was chosen as the candidate for the 30-day catalyst aging run. The aging run is currently under investigation and has progressed through period 5.

• Research Organization: Cities Service Oil Co., Tulsa, Okla. (USA)
• OSTI ID: 5294764
• Report Number(s): FE-2038-18
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010403 -- Coal & Coal Products-- Hydrogenation-- (-1987)
010407* -- Coal & Coal Products-- Solvent Extraction-- (-1987)
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL REACTIONS
COAL EXTRACTS
COBALT
CRYOGENIC FLUIDS
DENITRATION
DESULFURIZATION
ELEMENTS
EVALUATION
FLUIDS
FUELS
HYDROGENATION
METALS
MOLYBDENUM
NICKEL
NITROGEN
NONMETALS
REFRACTORY METALS
REMOVAL
SOLVENT-REFINED COAL
SULFUR
TRANSITION ELEMENTS
TUNGSTEN