Division 51

United Kingdom

BAT is to reduce SO_X emissions from the melting furnace by using one or a combination of the following techniques:

Technique^f1	Applicability
A description of the techniques is given in Section 1.10.3.
(i) Minimisation of the sulphur content in the batch formulation and optimisation of the sulphur balance	The technique is generally applicable within the constraints of quality requirements of the final glass product
(ii) Use of low sulphur content fuels	The applicability may be limited by the constraints associated with the availability of low sulphur fuels, which may be impacted by the energy policy of the Member State
(iii) Dry or semi-dry scrubbing, in combination with a filtration system	The technique is generally applicable

Table 41

BAT-AELs for SO_X emissions from the melting furnace in the special glass sector

Parameter	Fuel/melting technique	BAT-AEL^f2
The ranges take into account the variable sulphur balances associated with the type of glass produced.
The conversion factor of 2,5 × 10^–3 (see Table 2) has been used. However, a case-by-case conversion factor may have to be applied based on the type of production.
The lower levels are associated with the use of electric melting and batch formulations without sulphates.
The associated emission levels are related to the use of 1 % sulphur fuel oil in combination with secondary abatement techniques.
Parameter	Fuel/melting technique	mg/Nm³	kg/tonne melted glass^f3
SO_X expressed as SO₂	Natural gas, electric melting^f4	< 30 – 200	< 0,08 – 0,5
SO_X expressed as SO₂	Fuel oil^f5	500 – 800	1,25 – 2

Annotations

f1: A description of the techniques is given in Section 1.10.3.
f2: The ranges take into account the variable sulphur balances associated with the type of glass produced.
f3: The conversion factor of 2,5 × 10^–3 (see Table 2) has been used. However, a case-by-case conversion factor may have to be applied based on the type of production.
f4: The lower levels are associated with the use of electric melting and batch formulations without sulphates.
f5: The associated emission levels are related to the use of 1 % sulphur fuel oil in combination with secondary abatement techniques.