Furnaces – Process – Treating fuel constituent or combustion product
Patent
1989-11-28
1991-04-09
Yuen, Henry C.
Furnaces
Process
Treating fuel constituent or combustion product
110345, 110204, 110210, 110215, F23J 300
Patent
active
050054953
ABSTRACT:
Apparatus (10) and a method for removing volatile organic contaminants from particulate material utilizes a particulate material processor (12) and an emissions processor (14) which includes recirculating emissions pretreatment circuit (16) and a final treatment system (18). The recirculating emissions pretreatment circuit (16) has an inlet (72) that receives the contaminated hot gas emissions from a heating unit (20) of the material processor (12) and also has a condenser (76) that is preferably embodied by a wet scrubber (88) for removing condensible gases from the emissions prior to passage through an outlet (78) thereof back to the heating unit (20). An inlet (82) of the final treatment system (18) has a fan (48) that draws off a portion of the pretreated emissions for a final treatment. This final treatment may be provided either by a flame burner that is most preferably a part of the heating unit of the particulate material processor (12) or by a carbon adsorber (144).
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