# Commission Implementing Decision (EU) 2017/1442 of 31 July 2017 establishing best available techniques (BAT) conclusions, under Directive 2010/75/EU of the European Parliament and of the Council, for large combustion plants (notified under document C(2017) 5225) (Text with EEA relevance), Division BAT 46: In order to increase the energy efficiency of the combustion of iron and steel process gases, BAT is to use an appropriate combination of the techniques given in BAT 12 and below.

Extent: E+W+S+N.I.

Technique
Description
Applicability
a.
Process gas management system
See description in Section 8.2
Only applicable to integrated steelworks
Table 27
BAT-associated energy efficiency levels (BAT-AEELs) for the combustion of iron and steel process gases in boilers
These BAT-AEELs do not apply in the case of units operated < 1 500 h/yr.
In the case of CHP units, only one of the two BAT-AEELs ‘Net electrical efficiency’ or ‘Net total fuel utilisation’ applies, depending on the CHP unit design (i.e. either more oriented towards electricity generation or towards heat generation).
These BAT-AEELs do not apply to plants generating only electricity.
The wide range of energy efficiencies in CHP units is largely dependent on the local demand for electricity and heat.
Type of combustion unit
BAT-AEELs
Net electrical efficiency (%)
Net total fuel utilisation (%)
Existing multi-fuel firing gas boiler
30–40
50–84
New multi-fuel firing gas boiler
36–42,5
50–84
Table 28
BAT-associated energy efficiency levels (BAT-AEELs) for the combustion of iron and steel process gases in CCGTs
These BAT-AEELs do not apply in the case of units operated < 1 500 h/yr.
In the case of CHP units, only one of the two BAT-AEELs ‘Net electrical efficiency’ or ‘Net total fuel utilisation’ applies, depending on the CHP unit design (i.e. either more oriented towards electricity generation or towards heat generation).
These BAT-AEELs do not apply to plants generating only electricity.
Type of combustion unit
BAT-AEELs
Net electrical efficiency (%)
Net total fuel utilisation (%)
New unit
Existing unit
CHP CCGT
> 47
40–48
60–82
CCGT
> 47
40–48
No BAT-AEEL

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Source: https://www.legislation.gov.uk/eudn/2017/1442/annex/division/4/division/4.2/division/4.2.1/division/1 (the official version)
Page: https://openlegislation.uk/eu-decision-2017-1442/annex/division-4/division-4.2/division-4.2.1/division-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.