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U.S. Department of Energy
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Examination of short-contact-time coal liquefaction product stability. [Short contract time liquefaction]

Conference ·
OSTI ID:6642437
An experimental apparatus for producing short contact time (SCT) coal liquefaction material was assembled to replace tubing bomb microreactors. The apparatus consists of a 300 cm/sup 3/ autoclave, coal delivery equipment, temperature monitoring and control equipment, and gas traps for venting gaseous reaction products. Additionally, methods for evaluation of short contact time liquefaction products were reviewed and evaluated for applicability to this project. The results of elemental analysis; time-temperature profiles; fractionation into oils, asphaltenes, preasphaltenes, and residue; and high performance liquid chromatography (HPLC) are discussed. The applicability of the analytic methods to developing correlations relating short contact time liquefaction products to process conditions is also discussed. Finally, preliminary data from 19 cm/sup 3/ tubing bomb microreactors are discussed. Differences in operation of the 300 cm/sup 3/ autoclave and the 19 cm/sup 3/ microreactors are compared.
Research Organization:
Oak Ridge National Lab., TN (USA)
DOE Contract Number:
W-7405-ENG-26
OSTI ID:
6642437
Report Number(s):
CONF-821106-17-Draft; ON: DE83003415
Country of Publication:
United States
Language:
English