# Commission Implementing Decision of 26 September 2014 establishing the best available techniques (BAT) conclusions, under Directive 2010/75/EU of the European Parliament and of the Council, for the production of pulp, paper and board (notified under document C(2014) 6750) (Text with EEA relevance) (2014/687/EU), Division BAT 20: In order to reduce odour emissions and total reduced sulphur emissions due to strong and weak odorous gases, BAT is to prevent diffuse emissions by capturing all process-based sulphur containing off-gases, including all vents with sulphur-containing emissions, by applying all of the techniques given below.

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

The SOx emission levels of the lime kiln increase significantly when strong non-condensable gases (NCG) are fed to the kiln and no alkaline scrubber is used.
Applicable for the treatment of weak odorous gases.
Applicable for the treatment of strong odorous gases.
Technique
Description
a
Collection systems for strong and weak odorous gases, comprising the following features:
covers, suction hoods, ducts, and extraction system with sufficient capacity;
continuous leak detection system;
safety measures and equipment.
b
Incineration of strong and weak non-condensable gases
Incineration can be carried out using:
recovery boiler
lime kiln
dedicated TRS burner equipped with wet scrubbers for SOx removal; or
power boiler
To ensure the constant availability of incineration for odorous strong gases, back-up systems are installed. Lime kilns can serve as back-up for recovery boilers; further back-up equipment are flares and package boiler
c
Recording unavailability of the incineration system and any resulting emissions

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Source: https://www.legislation.gov.uk/eudn/2014/687/annex/division/9/division/1.2/division/1.2.2/division/1.2.2.1/division/bat+20 (the official version)
Page: https://openlegislation.uk/eu-decision-2014-687/annex/division-9/division-1.2/division-1.2.2/division-1.2.2.1/division-bat+20
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.