Low Emissions and Energy Optimised Sintering Process

Low Emissions and Energy Optimised Sintering Process collects all waste gases of the second half of the strand. These gases are recirculated to the system across the entire length of the sinter strand. The oxygen remaining in the recycled gas provides most of the oxygen required to burn the fuel. Due to the recirculation of the waste gas from the second section of the sinter strand, only the waste gas from the first half with the lower concentrations leaves the process through the stack. This significantly reduces the amount of waste gas and emissions.

Development Status	Products
Commercial	sinter

Development Status

Products

Commercial

sinter

Low Emissions and Energy Optimised Sintering ProcessCosts & Benefits

Parent Process: Sinter Plant
Energy Savings Potential	Coke breeze consumption can be reduced by 5 - 7 kg/t-sinter. As the system requires extra electricity to run the additional fans, the net energy saving is approximately 10 MJ/t-sinter (12.5% of the fuel demand).
CO2 Emission Reduction Potential	Significant reductions in NOx, SOx, HCl, HF and CO emissions are achieved. CO₂ emissions are also reduced due to reduced coke demand.
Costs	Investment cost was around €14 million.

Low Emissions and Energy Optimised Sintering ProcessSchematic