Division 22

BAT for primary emissions from sinter strands is to reduce sulphur oxide (SO_X) emissions by using one or a combination of the following techniques:

1. I..

   lowering the sulphur input by using coke breeze with a low sulphur content

2. II..

   lowering the sulphur input by minimisation of coke breeze consumption

3. III..

   lowering the sulphur input by using iron ore with a low sulphur content

4. IV..

   injection of adequate adsorption agents into the waste gas duct of the sinter strand before dedusting by bag filter (see BAT 20)

5. V..

   wet desulphurisation or regenerative activated carbon (RAC) process (with particular consideration for the prerequisites for application).

The BAT-associated emission level for sulphur oxides (SO_X) using BAT I – IV is < 350 – 500 mg/Nm³, expressed as sulphur dioxide (SO₂) and determined as a daily mean value, the lower value being associated with BAT IV.

The BAT-associated emission level for sulphur oxides (SO_X) using BAT V is < 100 mg/Nm³, expressed as sulphur dioxide (SO₂) and determined as a daily mean value.