Division 23

BAT for primary emissions from sinter strands is to reduce total nitrogen oxides (NO_X) emissions by using one or a combination of the following techniques:

1. I..

   process integrated measures which can include:

   1. (i)

      waste gas recirculation

   2. (ii)

      other primary measures, such as the use of anthracite or the use of low-NO_X burners for ignition

2. II..

   end-of-pipe techniques which can include

   1. (i)

      the regenerative activated carbon (RAC) process

   2. (ii)

      selective catalytic reduction (SCR).

The BAT-associated emission level for nitrogen oxides (NO_X) using process integrated measures is < 500 mg/Nm³, expressed as nitrogen dioxide (NO₂) and determined as a daily mean value.

The BAT-associated emission level for nitrogen oxides (NO_X) using RAC is < 250 mg/Nm³ and using SCR it is < 120 mg/Nm³, expressed as nitrogen dioxide (NO₂), related to an oxygen content of 15 % and determined as daily mean values.