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

Pricetown I: in-situ coal conversion field test for bituminous coals

Conference ·
OSTI ID:5879287

An Underground Coal Conversion (UCC) field test in bituminous coal is currently in progress near Pricetown, West Virginia. This test is being performed by US DOE's Morgantown Energy Technology Center (METC) with the primary objective of testing the viability of Linked Vertical Well technology to recover the 275 meter-deep, 2 meter-thick coal resource. The field test is being continuously monitored in real time by an acquisition and control system comprised of a host minicomputer and four satellite microprocessors linked to process and analytical instrumentation. Pre-ignition air injection tests and argon tracer tests were performed prior to ignition of the coal seam. These studies provided conductance information for air through the coal seam. Following ignition, the coal seam was prepared for gasification by the reverse combustion linkage (RCL) process. This process increased coal seam permeability and enabled gasification to be initiated. During the RCL phase of the test, the quality of the produced gas averaged 240 BTU/SCFM. The methane content of the produced gas was higher than that observed in field tests performed in western sub-bituminous coal. This high methane content has been attributed to the nature of the bituminous coal which has a very high volatile matter content. The methane formation can be accounted for by thermal and hydrocracking of tars and oils along with hydropyrolysis and hydrogasification of coal char. Gasification is currently in progress.

Research Organization:
Mound Facility, Miamisburg, OH (USA); Department of Energy, Morgantown, WV (USA). Morgantown Energy Technology Center
DOE Contract Number:
EY-76-C-04-0053
OSTI ID:
5879287
Report Number(s):
MLM-2671(OP); CONF-791204-2
Country of Publication:
United States
Language:
English