Method of and apparatus for in situ gasification of coal and the

Details Method of and apparatus for in situ gasification of coal and the Method of and apparatus for in situ gasification of coal and the

1975-10-06

1977-03-08

Purser, Ernest R.

Wells

Processes

In situ combustion

48DIG6, 1661175, 166223, 165 45, E21C 4300, E21B 4324

Patent

active

040108015

ABSTRACT:
A method of in situ gasification of coal includes the steps of releasing reactant materials in a coal bed in a manner such that the reactants are directly exposed to the burning face of a coal bed under preselected temperatures and pressures whereby the incomplete combustion of the coal is affectively controlled. In one preferred form of the method, the heat generated from the combusted materials is captured and separated from the recovered gas so that the heat can be converted to other forms of energy separately from the recovered gas.

REFERENCES:
patent: 1867758 (1932-07-01), Ranney
patent: 1913395 (1933-06-01), Karrick
patent: 2695163 (1954-11-01), Pearce et al.
patent: 2786660 (1957-03-01), Alleman
patent: 2788956 (1957-04-01), Peuere et al.
patent: 3298434 (1967-01-01), Graham
patent: 3563606 (1971-02-01), Sears

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