Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Recycle slurry oil characterization. Third annual report, October 1, 1982-September 30, 1983

Technical Report ·
OSTI ID:6379114
This report includes results of our analyses of coal derived oils from Wilsonville ITSL Run 242 operated from November 1982 to January 1983. One hundred twenty-six samples were analyzed from Run 242 as well as four samples from Run 243. We performed a statistically designed set of experiments to compare the thermal reactivities of second-stage feeds from Run 242 and Lummus Run 3LCF9. Analyses of samples from Lummus Run BLCF52 were used to determine the effects of LC-Finer operating conditions on product solvent quality. Eight batches of various hydrogenated pyrenes were made for use as model coal liquefaction solvents. The characteristics of the process oils from Run 242 are significantly different from the characteristics of the corresponding process oils from Lummus PDU operations, although both operations were conducted in the ITSL mode. For many measured parameters, the data from Run 242 and the Lummus operations do not share a common range. Much of the difference may be ascribed to differences in the first-stage (thermal) severities and to selectivities of the deashing operation between the Lummus and Wilsonville operations. Characteristics of the start-up solvents may also have influenced this comparison. First-stage coal conversions to THF solubles averaged 91% for Run 242. This is 3 to 4% absolute greater than the THF conversions calculated for Lummus PDU runs operated at similar temperature and pressure conditions and is consistent with the generally lower first-stage space velocity used in Run 242. The more severe first stage conditions used in Run 242 may be one reason for the different first-stage yields and different second-stage feed compositions in that run as compared to PDU operations. Appendix II has been entered individually into EDB and ERA. 17 references, 30 tables, 7 figures.
Research Organization:
Conoco, Inc., Library, PA (USA). Coal Research Div.
DOE Contract Number:
AC22-80PC30027
OSTI ID:
6379114
Report Number(s):
DOE/PC/30027-56; ON: DE85002615
Country of Publication:
United States
Language:
English