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BAT-associated emission levels: See Table 4.

Table 4

BAT-associated emission levels for NOX emissions to air from the regenerator in the catalytic cracking process

When antimony (Sb) injection is used for metal passivation, NOX levels up to 700 mg/Nm3 may occur. The lower end of the range can be achieved by using the SCR technique.
ParameterType of unit/combustion modeBAT-AEL(monthly average)mg/Nm3
NOX, expressed as NO2 New unit/all combustion mode< 30-100
Existing unit/full combustion mode< 100-300f1
Existing unit/partial combustion mode100-400

The associated monitoring is in BAT 4.

  1. BAT 24Division BAT 24
  2. IPrimary or process-related techniques, such as:
  3. IISecondary or end-of-pipe techniques, such as:

Annotations

Footnotes

f1

When antimony (Sb) injection is used for metal passivation, NOX levels up to 700 mg/Nm3 may occur. The lower end of the range can be achieved by using the SCR technique.