Process for in situ coal gasification

Details Process for in situ coal gasification Process for in situ coal gasification

1978-05-09

1980-04-15

Leppink, James A.

Wells

Processes

In situ combustion

48DIG6, 166266, 166272, 166302, 166303, E21B 4324

Patent

active

041979117

ABSTRACT:
In situ coal gasification to form a methane rich gas is carried out by injecting a lower aliphatic alcohol such as methanol into a coal seam, raising the temperature to cause dissociation of the alcohol and injecting water into the same. Nascent hydrogen is produced which reacts with the coal to form methane. The product gas may also contain hydrogen and carbon monoxide which can be separated and reacted to form methanol.

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patent: 3850477 (1974-11-01), Aldrich et al.
patent: 3948320 (1976-04-01), Terry
patent: 3973628 (1976-08-01), Colgate
patent: 3990513 (1976-11-01), Perch

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