Gas: heating and illuminating – Generators – Cupola
Patent
1989-07-12
1991-07-23
Woodard, Joye L.
Gas: heating and illuminating
Generators
Cupola
48 63, 48 67, 202 86, 202 94, 202 99, 202215, 201 34, 201 36, C10J 320, C10J 358, C10B 104
Patent
active
050340212
ABSTRACT:
Apparatus is described for the pyrolysis of coal comprising a pyrolysis tower through which crushed coal and hot gas are counter-currently passed. The tower enables a controlled temperature profile to be maintained in the tower, and contains inner appurtenances which define cascading passageways to promote heat exchange and mixing of the coal with the hot gas. The coal volatiles are carried out of the top of the tower by the gas. The pyrolysis tower may be conjoined with a gasifier so as to most directly utilize the char residuals remaining after pyrolysis of the coal while they are still hot to more efficiently produce a hot synthesis gas, to be used to perform thermal pyrolysis in the tower.
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