# Commission Implementing Decision (EU) 2017/2117 of 21 November 2017 establishing best available techniques (BAT) conclusions, under Directive 2010/75/EU of the European Parliament and of the Council, for the production of large volume organic chemicals (notified under document C(2017) 7469) (Text with EEA relevance), Division BAT 78:: In order to reduce emissions to air of dust and CO from the decoking of the cracker tubes, BAT is to use one of the techniques to reduce the frequency of decoking given below and one or a combination of the abatement techniques given below.

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

Technique
Description
Applicability
Techniques to reduce the frequency of decoking
a.
Optimisation of thermal decoking
Optimisation of operating conditions, i.e. airflow, temperature and steam content across the decoking cycle, to maximise coke removal
Generally applicable
b.
Optimisation of mechanical decoking
Optimise mechanical decoking (e.g. sand jetting) to maximise coke removal as dust
Generally applicable
Abatement techniques
c.
Wet dust scrubbing
See Section 12.1
Only applicable to thermal decoking
d.
Cyclone
See Section 12.1
Generally applicable
e.
Fabric filter
See Section 12.1
Generally applicable

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Source: https://www.legislation.gov.uk/eudn/2017/2117/annex/division/10/division/10.1/division/10.1.2/division/BAT+78 (the official version)
Page: https://openlegislation.uk/eu-decision-2017-2117/annex/division-10/division-10.1/division-10.1.2/division-BAT+78
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.