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

Upgrading of coal liquefaction feedstock by selective agglomeration

Conference ·
OSTI ID:10142272
The technical feasibility study of using selective agglomeration (with coal-derived oil) to upgrade Illinois No. 6 coal for a liquefaction feedstock was completed. Effects of coal particle size, slurry pH, oil-to-coal ratio, and operating temperature on mineral matter reduction, clean coal weight recovery, and clean coal moisture content were studied. The addition of coal-derived naphtha or kerosene as conditioners to increase hydrophobicity and recovery of coal was also investigated. Results showed that approximately 70% of the mineral matter could be removed from this coal at a clean coal weight recovery of over 85% by grinding the coal to a mean volume diameter of about 10 microns and properly selecting of the operation variables.
Research Organization:
USDOE Pittsburgh Energy Technology Center, PA (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
OSTI ID:
10142272
Report Number(s):
DOE/PETC/TR--94-02; CONF-910204--4; ON: DE94009955; NC: NONE
Country of Publication:
United States
Language:
English