Gas: heating and illuminating – Generators – Cupola
Reexamination Certificate
2006-03-07
2006-03-07
Doroshenk, Alexa (Department: 1764)
Gas: heating and illuminating
Generators
Cupola
C044S629000, C202S117000, C202S118000, C110S219000, C110S229000
Reexamination Certificate
active
07008459
ABSTRACT:
A process and apparatus for coal pyrolysis pretreatment. The apparatus is made up of a pretreatment vessel for holding a bed of coal particles, a preheater for heating the bed of coal particles to a temperature below the coal pyrolysis temperature range and an oxygen remover for removing oxygen released from the heated coal particles. The apparatus can also have a flue gas source as an oxygen removal sweep gas to the bed of coal, a collector for collecting non-condensable combustible gases, and the preheater having a furnace holding ceramic balls which are circulated from the furnace to the bed of coal particles. The process involves heating the bed of coal particles to a temperature below the coal pyrolysis temperature range and preventing air from contacting the bed of coal particles in addition to collecting non-condensable combustible gases or the preheating step accomplished by having a furnace holding ceramic balls which are circulated from the furnace to the bed of coal particles.
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Falkenberry Harold L.
Fraas Arthur P.
Furgerson Richard L.
Creighton Wray James
Doroshenk Alexa
Fraas Arthur P.
Narasimhan Meera P.
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