The use of Hot Briquetted Iron (HBI) the Blast Furnace (BF)
Benefits from using Hot Briquetted Iron (HBI):
Hot Briquetted Iron (HBI) is a manufactured product with guaranteed specifications.
Each 10% increase in burden metallization will increase iron production by about 8%
Decreased Coke Rate
Each 10% increase in burden metallization will decrease the coke rate by about 7% (100 kg HBI/mTHM = – 14% CO2/mTHM = – 43 kg coke/mTHM)
Decreased CO2 Emissions
(200kg HBI/mMTH = – 14% CO2/mTHM)
Compatible with injected fuels and oxygen
Other Features of Hot Briquetted Iron (HBI):
- Compatible with iron ore handling equipment
- Can be stored outside
- Feeds easily from bins
- Allows for flexible operation of multiple blast furnaces
Definition OF Hot Briquetted Iron (HBI)
A compacted form of Direct Reduced Iron (DRI) produced from iron ore fines, pellets, or lumps that are densified following reduction at a temperature greater than 650°C to have a density greater than 5000 kglm3, which makes it more resistant to reoxidation and fines generation.