Page 26 - Tcexpression2021 - Sept to Dec 2020

A summary of various available & emerging Technologies is tabulated below with broad segregation on
technology readiness between a pilot and commercially availability:

TECHNOLOGIES ON ENERGY OPTIMISATION, REDUCTION OF EMISSION & DECARBONIZATION
BF-BOF ROUTE DRI -EAF/EIF ROUTE
PROCESS
PILOT COMMERCIAL PILOT COMMERCIAL
Sintering - Waste heat recovery - NA

High-Efficiency Coke Oven Gas Burner
Sintering - - NA
in Ignition Furnace
Sintering - Increasing sinter bed depth - NA
Improvement in segregated charging
Sintering - - NA
of sintering material
Cokemaking - Coke Dry Quenching (CDQ) - NA

Cokemaking - Coal Moisture Control (CMC) - NA
Automated Combustion Control of
Cokemaking - - NA
Coke Oven
Partial fuel substitution in the coking
Cokemaking - - NA
plant
Use of iron ore pellets in DRI
Ironmaking COURSE 50 Top pressure recovery turbine (TRT) SALCOS
kiln/ BF.
Preheating through WHR from Hot Waste Heat Recovery from
Ironmaking FLASH OXIDE SMELTING SUSEEL
Stoves of Blast furnace Sponge Iron kiln.
Ironmaking HISARNA Pulverised coal injection (PCI) HYBRIT -

Ironmaking - Injection of coke oven gas - -
Ironmaking - Recovery of blast furnace gas - -
Ironmaking - Stove flue gas recycling - -
Ironmaking - Use of iron ore pellets in DRI kiln/ BF - -
Steelmaking - Converter gas heat recovery device - Charge or scrap preheating
Scrap densification or
Steelmaking - Converter gas recovery device -
shredding
Coherent Jet Gas Injection
Steelmaking - Heat recovery from steelmaking slag -
Technology
Steelmaking - Increased use of recycled steel scrap - Improved process control
Ultra-high-power
Steelmaking - - -
transformers
Waste heat recovery from
Steelmaking - - -
EAF
Ecological and Economical
Steelmaking - - -
Arc Furnace
Steelmaking - - - Oxy-fuel burners or lancing
Slag Foaming, Exchangeable
Steelmaking - - - Furnace and Injection
Technology
Steelmaking - - - Hot Charging DRI
Increased use of recycled
Steelmaking - - -
steel scrap
Casting and - Oxygen burners system for ladle - Near net shape casting
Refining preheating

Regenerative burners in reheating
Rolling - - Direct rolling
furnace
Rolling/ - Rotary Hearth Furnace (RHF) Dust - Hot charging of slab
Furnace Recycling System
Rolling/ - - - Installing VVVF drives to
Furnace electrical motors

26 TCExpresssion