Division 60
United Kingdom
BAT is to reduce HCl and HF emissions from the melting furnace by using one or a combination of the following techniques:
| A description of the techniques is given in Section 1.10.4. | |
| Techniquef1 | Description |
|---|---|
| (i) Selection of raw materials for the batch formulation with a low content of chlorine and fluorine | The technique is generally applicable within the constraints of the batch formulation and the availability of raw materials |
| (ii) Dry or semi-dry scrubbing, in combination with a filtration system | Electrostatic precipitators are not applicable to cupola furnaces for stone wool production (see BAT 56) |
Table 50
BAT-AELs for HCl and HF emissions from the melting furnace in the mineral wool sector
| The conversion factors of 2 × 10–3 for glass wool and 2,5 × 10–3 for stone wool have been used (see Table 2). | |||
| The conversion factors of 2 × 10–3 and 2,5 × 10–3 have been used for the determination of the lower and upper values of the BAT-AELs range (see Table 2). | |||
| Parameter | Product | BAT-AEL | |
|---|---|---|---|
| mg/Nm3 | kg/tonne melted glassf2 | ||
| Hydrogen chloride, expressed as HCl | Glass wool | < 5 – 10 | < 0,01 – 0,02 |
| Stone wool | < 10 – 30 | < 0,025 – 0,075 | |
| Hydrogen fluoride, expressed as HF | All products | < 1 – 5 | < 0,002 – 0,013f3 |
Annotations
Footnotes
- f1
-
A description of the techniques is given in Section 1.10.4.
- f2
-
The conversion factors of 2 × 10–3 for glass wool and 2,5 × 10–3 for stone wool have been used (see Table 2).
- f3
-
The conversion factors of 2 × 10–3 and 2,5 × 10–3 have been used for the determination of the lower and upper values of the BAT-AELs range (see Table 2).