Distillation: apparatus – Apparatus – Systems
Patent
1997-02-07
1999-10-19
Manoharan, Virginia
Distillation: apparatus
Apparatus
Systems
201 1, 201 26, 201 35, 201 39, 202151, 202160, 202205, 202227, 122 5, 431185, 431190, 431 19, 236 15, C10B 100, C10B 3900, C10J 104
Patent
active
059683201
ABSTRACT:
A system for transporting and burning under negative pressure in a boiler a raw coke oven gas to produce steam energy. The system has the usual battery of coke ovens and corresponding ascension pipes connected to a collector main. Flushing liquor is sprayed into the hot coke oven gases to effect cooling in the collector main. A transport main delivers the cooled raw coke oven gases and flushing liquor to a burner of a steam producing boiler where the transport main includes a downcomer for separating the raw coke oven gas from the flushing liquor. The coke oven gas is burned in the boiler where a suction fan is provided at the exhaust of the boiler to develop a negative pressure in the system where the boiler has reinforced walls to withstand the negative pressure. A change in negative pressure in the system is detected and monitored by a controller system which varies draw of the suction fan in response to a detected change in negative pressure in the system. The system is readily retrofitted to existing coke ovens and in turn replaces the usual by-products plant. The generated steam may be used in the co-generation of electrical or mechanical energy. The system may be controlled in a manner to minimize and/or eliminate surplus flushing liquors.
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Manoharan Virginia
Stelco Inc.
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