# 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 84:: In order to reduce the amount of coke being sent for disposal from VCM plants, BAT is to use a combination of the techniques given below.

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

Technique
Description
Applicability
a.
Use of promoters in cracking
See BAT 83
Generally applicable
b.
Rapid quenching of the gaseous stream from EDC cracking
The gaseous stream from EDC cracking is quenched by direct contact with cold EDC in a tower to reduce coke formation. In some cases, the stream is cooled by heat exchange with cold liquid EDC feed prior to quenching
Generally applicable
c.
Pre-evaporation of EDC feed
Coke formation is reduced by evaporating EDC upstream of the reactor to remove high-boiling coke precursors
Only applicable to new plants or major plant upgrades
d.
Flat flame burners
A type of burner in the furnace that reduces hot spots on the walls of the cracker tubes
Only applicable to new furnaces or major plant upgrades

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Source: https://www.legislation.gov.uk/eudn/2017/2117/annex/division/10/division/10.4/division/BAT+84 (the official version)
Page: https://openlegislation.uk/eu-decision-2017-2117/annex/division-10/division-10.4/division-BAT+84
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.