Gas: heating and illuminating – Generators – Cupola
Patent
1974-10-07
1977-06-28
Wolk, Morris O.
Gas: heating and illuminating
Generators
Cupola
48 63, 48 99, 48197R, 48202, 48206, 48210, 23284, 201 31, C10J 354, C10J 356
Patent
active
040323056
ABSTRACT:
The relatively small degree of backmixing of gas in a well-arranged fast fluidized bed is exploited to introduce heat into a fluidized bed reaction system wherein a fluidized bed treatment zone receiving heat and for the purpose of conducting an endothermic treatment of matter can have a gas atmosphere, such as relatively pure steam, that is maintained independently of and without admixture by any gas or gases that are associated with a step for introducing the heat. The treatment advantageously constitutes a treatment of a carbonaceous matter, such as coal or petroleum or municipal solid waste, with hot steam for purpose of gasifying or carbonizing or cracking the matter. The arrangement is also useful for a broad range of endothermic chemical or physical treatment of matter at high temperature. Heat is introduced into an upper fast fluidized bed zone and flows by conduction downward into a lower fluidized bed zone, that may comprise a treatment zone, or sometimes the heat flows onward by conduction to other fluidized bed treatment zones not in communication with the upper zone, to permit withdrawal of gaseous products of the treatment substantially without dilution by a gas associated with the step of supplying heat to the upper zone.
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Marcus Michael S.
Wolk Morris O.
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