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

Advanced research for the characterization of hydrogen donor solvents in two-stage liquefaction. Quarterly report, April 1-June 30, 1985

Technical Report ·
OSTI ID:5419629
The purpose of this research program is to develop an improved method for producing a highly effective solvent for the Integrated Two-Stage Liquefaction (ITSL) process and to study the characteristics of the solvent at a variety of process conditions. The ITSL process for conversion of coal to distillate liquids combines Short Contact Time (SCT) hydroliquefaction and expanded bed hydrogenation and hydrocracking of the coal extract, either before or after deashing. Accomplishments for this period are as follows: Subtask 4.1 (Continuous SCT Extract Hydrogenation) was completed with the third 15-day continuous catalyst aging run. Katalco NM-506 Ni/Mo catalyst was used to hydrogenate an Illinois 6 derived extract to a level of 7.5 to 7.9 weight percent hydrogen. A portion of the product samples were fractionated to 850/sup 0/F- and 850/sup 0/F+ components for use in Subtask 4.3 with the remainder of the products being blended into one large batch for Subtask 4.2. Three 14-day continuous hydrocracking runs were completed for Subtask 4.2 (Continuous Hydrocracking of Hydrogenated SCT Extract). The catalysts used for these runs were: Shell 317 Ni/Mo, Katalco NM-506 Ni/Mo, and American Cyanamid 1442B Co/Mo. The operating conditions were 750/sup 0/F, 775/sup 0/F, and 800/sup 0/F at 1.0 weight hourly space velocity. The conversion of 650/sup 0/F+ material and 850/sup 0/F+ material was monitored and compared between the runs. Thirty-six microautoclave SCT runs were made using the hydrogen donor solvent from Subtask 4.1 products. The conversion of Illinois 6 coal was observed for each run and correlated with the solvent blending components and hydrogen contents (Subtask 4.3 - Microautoclave Tests using Solvents from Continuous Hydrogenation and Hydrocracking). 5 figs., 9 tabs.
Research Organization:
Cities Service Research and Development Co., Tulsa, OK (USA)
DOE Contract Number:
AC22-83PC60047
OSTI ID:
5419629
Report Number(s):
DOE/PC/60047-T8; ON: DE85017680
Country of Publication:
United States
Language:
English