Method of recovering coal values by combining underground coal g

Details Method of recovering coal values by combining underground coal g Method of recovering coal values by combining underground coal g

1985-03-14

1986-09-30

Suchfield, George A.

Wells

Processes

In situ combustion

166266, 166267, 208428, 252373, 585943, E21B 43243

Patent

active

046142347

ABSTRACT:
Hot gases from an underground coal gasification operation are used to pyrolyze mined coal, which is subsequently used for surface steam generation, the steam being utilized in the underground coal gasification operation. Valuable gases and hydrocarbon liquids are obtained from the process.

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