Comparison of dry quenched coke with wet quenched coke for blast furnace operation
Conference
·
· Proc., Ironmaking Conf.; (United States)
OSTI ID:6144617
- Kawatetsu Chemical Industry Co., Ltd., Chiba, Japan
A comparison of DQ-coke (dry quenched coke) with WQ-coke (wet quenched coke) for blast furnace operation was made. The results were as follows: a decrease in coke moisture caused a sharp rise in the top gas temperature; a decrease in coke moisture fluctuation was confirmed, and it is estimated that DQ-coke contributes to reducing furnace heat fluctuation; coke size distribution on the coke dry quenching exit side showed a clear change into small sizes; reduction of coke reactivity caused a decrease in the amount of solution loss reaction and a increase in the CO gas utilization; and since changes in blast temperature and blast moisture were used to cope with the reserve of heat capacity, the coke rate was approximately equal. The superiority of DQ-coke for blast furnace operations was confirmed. Although contribution of each factor cannot be verified, coke rate reduction can be produced as the integrated effect.
- OSTI ID:
- 6144617
- Report Number(s):
- CONF-8203108-
- Conference Information:
- Journal Name: Proc., Ironmaking Conf.; (United States) Journal Volume: 41
- Country of Publication:
- United States
- Language:
- English
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