# 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 63:: In order to use ethylene oxide efficiently, BAT is to use a combination of the techniques given below.

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

Technique
Description
Applicability
a.
Use of excess ammonia
Maintaining a high level of ammonia in the reaction mixture is an effective way of ensuring that all the ethylene oxide is converted into products
Generally applicable
b.
Optimisation of the water content in the reaction
Water is used to accelerate the main reactions without changing the product distribution and without significant side reactions with ethylene oxide to glycols
Only applicable for the aqueous process
c.
Optimise the process operating conditions
Determine and maintain the optimum operating conditions (e.g. temperature, pressure, residence time) to maximise the conversion of ethylene oxide to the desired mix of mono-, di-, triethanolamines
Generally applicable

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Source: https://www.legislation.gov.uk/eudn/2017/2117/annex/division/8/division/8.3/division/BAT+63 (the official version)
Page: https://openlegislation.uk/eu-decision-2017-2117/annex/division-8/division-8.3/division-BAT+63
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.