Gas: heating and illuminating – Processes – Fuel mixtures
Patent
1979-05-31
1981-07-14
Kratz, Peter F.
Gas: heating and illuminating
Processes
Fuel mixtures
48202, 48206, 48DIG4, 252373, C10J 346
Patent
active
042784468
ABSTRACT:
A process and apparatus for gasification of carbonaceous matter, preferably coal, is disclosed. A stream of previously produced char, preferably produced from coal, or other fuel together with an oxidizer and steam is introduced into a first or combustion stage. The combustion gas produced by the combustion passes into a second or gasification stage and through a nozzle at at least sonic velocity. Pulverized carbonaceous matter, preferably coal, is introduced and dispersed in the combustion gas in the gasification stage. The temperature, velocity and velocity changes principally of the gas in the gasification stage are controlled to provide a heating rate for the particles of pulverized carbonaceous matter of at least about 10.sup.5 degrees Kelvin per second, and to effect rapid removal of volatile components from the immediate vicinity of the particles. Upon substantial gasification of the particles in the gasification stage, the resultant product stream may be quenched, the char removed, and preferably at least a portion thereof introduced into the combustion stage.
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Gannon Richard E.
Stickler David B.
von Rosenberg, Jr. Charles W.
Avco Everett Research Laboratory, Inc.
Frederick M. E.
Kratz Peter F.
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