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U.S. Department of Energy
Office of Scientific and Technical Information

Composite-bed reactor for upgrading coal-derived liquids. Quarterly report No. 9, October 1-December 31, 1985

Technical Report ·
OSTI ID:6291805
Further analyses of liquid samples and spent catalysts from Run PDA were made during this quarter, along with equipment repair on a damaged pump in the Catalyst Life Test Unit (CLTU). Run PDA (370C, 12.4 MPa, 2.3 h liquid volume hourly space time (LVHST)) was made as a preliminary run to establish conditions for future studies. A NiMo, commercial catalyst was used. The liquid samples were analyzed on a chromatograph equipped with a nitrogen-sensitive detector and confirmed the complex network of intermediate and final products as reported in other studies. There is a trend with time of catalyst-liquid contact as the catalyst activity decreases. This trend is evident by the shift in concentration of intermediates. The spent catalysts from the reactor revealed losses of 20 to 27% in pore volume and 7 to 13% for surface area. Upon regeneration, from 93 to 98% of these properties were recovered. The coke content in the reactor bed varied from a high of 9.9 wt % at the top to 7.6 wt % at the bottom. 1 ref., 5 figs., 1 tab.
Research Organization:
Oklahoma State Univ., Stillwater (USA). School of Chemical Engineering
DOE Contract Number:
FG22-83PC60787
OSTI ID:
6291805
Report Number(s):
DOE/PC/60787-9; ON: DE86005374
Country of Publication:
United States
Language:
English