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Commercial scale expanded bed hydroprocessing of Solvent Refined Coal (SRC) extract. Interim technical progress report on Subtask I: catalyst screening

Technical Report ·
DOI:https://doi.org/10.2172/5891225· OSTI ID:5891225
The feasibility of utilizing an expanded bed reactor (LC-Fining Process) for upgrading SRC-I has been adequately demonstrated with respect to conversion of 850/sup 0/F+ and desulfurization. The objective of this subtask was to determine the effectiveness of commercially available hydrotreating catalysts for improved denitrogenation. A goal was set of approximately 0.3 weight percent in the 390 to 850/sup 0/F distillate fraction. A catalyst screening study utilizing six commercial catalysts showed that a Shell 324 nickel-molybdenum 1/32 inch extrudate was superior to two other nickel-molybdenum catalysts, two cobalt-molybdenum catalysts, and a nickel-tungsten catalyst. The Shell 324 catalyst was run for 33 days of continuous operation and demonstrated conversion levels of 55 to 65 volume percent 850/sup 0/F+ (based on feed) with a distillate product (390 to 850/sup 0/F) containing approximately 0.3 weight percent nitrogen and 32 to 128 ppM sulfur. Catalyst activity was maintained by small temperature adjustments. Proprietary LC-Fining expanded bed correlations for residuum processing of petroleum are applicable to coal liquids processing.
Research Organization:
Cities Service Co., Tulsa, OK (USA). Technology Assessment Dept.
OSTI ID:
5891225
Report Number(s):
FE-2038-25
Country of Publication:
United States
Language:
English