Process for in situ conversion of coal or the like into oil and

Details Process for in situ conversion of coal or the like into oil and Process for in situ conversion of coal or the like into oil and

1976-07-12

1977-11-08

Purser, Ernest R.

Mining or in situ disintegration of hard material

Tunnel recovery of fluid material

48DIG6, 166259, 166261, 166263, E21C 4100

Patent

active

040572935

ABSTRACT:
This application discloses a process for accomplishing in situ retorting of coal, or a similar hydrocarbon by constructing a substantially impervious retorting area, and then fragmenting the coal to provide a substantially homogeneous, porous mass. After pyrolysis due to the introduction of oxygen-containing gas at one portion and withdrawal of oil and gas at another portion, the direction of gas flow is reversed to convert the char into a relatively high B.T.U. gas product.

REFERENCES:
patent: 947608 (1910-01-01), Betts
patent: 3734180 (1973-05-01), Rhoades
patent: 3734184 (1973-05-01), Scott
patent: 3980339 (1976-09-01), Heald et al.

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