Business   Steel Plants  Iron making  Coke Oven
 

Coke is produced from coal carbonization in cokes oven and used for producing melted iron in the blast furnace.

Coke Oven Gas (COG) generated during the coal carbonization becomes clean gas after removing any impurities and harmful materials depending on a certain temperature and pressure in the gas refinery plants.

Clean gas with about 4,300 kcal/N m³ of calorific value is stored in the gas holder of the steelworks and is then supplied as the fuel gas to many plants of the steelworks.

POSCO E&C renders the services of engineering, procurement, construction and commissioning for the coke oven and gas refinery plants based on the experiences from the steelworks in Pohang and Gwangyang.
   

Extension of the Coke Plant Stage 5
 
A new 5A coke oven battery was planned to meet the demand for the improvement of productivity in blast furnace.
5A battery was located next to existing 5B battery and its coke productivity is the same as 5B battery.


Project period: Dec. 2005 ~ Nov. 2007
Coke Oven Battery 1set (75 Ovens)
Gas Refinery Plant
P.G.C 22,000 N m³/Hr 1set
COG Blower 60,000 N m³/Hr 1set

CDQ for the Coke Plant Stage 4
 
The traditional wet coke quenching system had been used in stage 5 coke plant. CDQ(Coke Dry Quenching) was adopted instead of existing wet quenching system.
CDQ improved the energy recovery and the quality of coke for blast furnace which has been aiming at high productivity.


Project period: Dec. 2003 ~ Aug. 2005
Turbine Generator: 29.7 MW
Waste gas Boiler : 105 T/H
Bucket Crane: 67.5 Ton
Deminerlized water facility : 65 T/H
Cooling Water System: 1,400N m²/H * 6sets
Dedusting unit: 1,520 N m³ /min