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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. 8, July 1-September 30, 1985

Technical Report ·
OSTI ID:5169115
Four batch reactor experiments were conducted and one experiment was completed in the Catalyst Life Test Unit (CLTU). All experiments used a NiMo catalyst, TK-771 (Topsphie). The batch experiments were conducted to prepare a catalyst with varying levels of coke content and resultant pore size distribution. This was to be a controlled coking experiment to prepare catalysts with specific properties to be used for further testing in zoned bed reactors. Under the operating conditions and feedstocks utilized, the changes in the catalyst physical properties fell within too narrow a range. The basic approach is valid, but the conditions utilized did not yield the desired results. The decision was made to conduct zone bed studies using fresh catalysts instead of these aged, coked catalysts. The experiment in the CLTU trickle bed reactor was conducted at 370/sup 0/C, 12.4 MPa, space time of 2.3 h and for a duration of 120 h. The feedstock was a mixture of quinoline and n-hexadecane (1 weight percent nitrogen content). Over the first 84 hours of the experimental run, from 90 to 96% removal of nitrogen was achieved. From 84 to 120 hours a precipitous rate of catalyst deactivation occurred. This experiment is part of a base data set for the zoned bed study. 5 figs., 2 tabs.
Research Organization:
Oklahoma State Univ., Stillwater (USA). School of Chemical Engineering
DOE Contract Number:
FG22-83PC60787
OSTI ID:
5169115
Report Number(s):
DOE/PC/60787-8; ON: DE86001713
Country of Publication:
United States
Language:
English