Division BAT 59 In order to reduce emissions to air of volatile organic compounds and polychlorinated dibenzo-dioxins and -furans from the combustion of process fuels from the chemical industry in boilers, BAT is to use one or a combination of the techniques given in BAT 6 and below.

United Kingdom

Technique	Description	Applicability
a.	Activated carbon injection	See description in Section 8.5	Only applicable to combustion plants using fuels derived from chemical processes involving chlorinated substances. For the applicability of SCR and rapid quenching see BAT 56 and BAT 57
b.	Rapid quenching using wet scrubbing/flue-gas condenser	See description of wet scrubbing/flue-gas codenser in Section 8.4
c.	Selective catalytic reduction (SCR)	See description in Section 8.3. The SCR system is adapted and larger than an SCR system only used for NO_X reduction

Technique

Description

Applicability

Activated carbon injection

See description in Section 8.5

Only applicable to combustion plants using fuels derived from chemical processes involving chlorinated substances.

For the applicability of SCR and rapid quenching see BAT 56 and BAT 57

Rapid quenching using wet scrubbing/flue-gas condenser

See description of wet scrubbing/flue-gas codenser in Section 8.4

Selective catalytic reduction (SCR)

See description in Section 8.3.

The SCR system is adapted and larger than an SCR system only used for NO_X reduction

Table 38

BAT-associated emission levels (BAT-AELs) for PCDD/F and TVOC emissions to air from the combustion of 100 % process fuels from the chemical industry in boilers

Pollutant	Unit	BAT-AELs
These BAT-AELs only apply to plants using fuels derived from chemical processes involving chlorinated substances.
Pollutant	Unit	Average over the sampling period
PCDD/F^f1	ng I-TEQ/Nm³	< 0,012–0,036
TVOC	mg/Nm³	0,6–12

Annotations

Footnotes

f1: These BAT-AELs only apply to plants using fuels derived from chemical processes involving chlorinated substances.