Method for producing coke
Patent
·
OSTI ID:6330772
An increased coking rate of a coal charge in a nonrecovery coke oven is achieved without polluting emissions by decreasing the supply of primary air fed into the coke oven chamber throughout the coking period while controlling the amount of heated secondary air for combustion of the effluent in downcomers to maintain the temperature therein between 1200/sup 0/F and 2400/sup 0/F and to maintain a temperature in the range of 1800/sup 0/F to 2700/sup 0/F in heating flues by further combustion of the effluent discharged thereto from the downcomers. Coking proceeds from the top, bottom and sides of the coal charge. The effluent from the sole heating flue is incinerated within a checker-filled ignition chamber maintained at a temperature of at least 1600/sup 0/F. The incinerated gases are drawn into a stack at a negative draft pressure of between 0.15 and 0.17 inch water gage.
- Assignee:
- Pennsylvania Coke Tech., Inc.
- Patent Number(s):
- US 4124450
- OSTI ID:
- 6330772
- Country of Publication:
- United States
- Language:
- English
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