# Commission Implementing Decision of 26 March 2013 establishing the best available techniques (BAT) conclusions under Directive 2010/75/EU of the European Parliament and of the Council on industrial emissions for the production of cement, lime and magnesium oxide (notified under document C(2013) 1728) (Text with EEA relevance) (2013/163/EU), Division 1.6.3: SOx emissions

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

Technique
Description
a
Absorbent addition techniques
The technique involves the addition of an absorbent in dry form directly into the kiln (fed or injected) or in dry or wet form (e.g. hydrated lime or sodium bicarbonate) into the flue-gases in order to remove SOx emissions. When absorbent is injected into the flue-gases, a sufficient residence time between the injection point and the dust collector (fabric filter or ESP) must be provided in order to obtain an efficient absorption.
For rotary kilns, absorption techniques may include:
Use of fine limestone: At a straight rotary kiln fed with dolomite, significant reductions in SO2 emissions can occur with feedstones which either contain high levels of finely divided limestone or are prone to break up on heating. The finely divided limestone calcines are entrained in the kiln gases and remove SO2 en route to, and in, the dust collector.
Lime injection into the combustion air: A patented technique (EP 0 734 755 A1) which removes SO2 emissions from rotary kilns by injecting finely divided quick or hydrated lime into the air fed into the firing hood of the kiln

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Source: https://www.legislation.gov.uk/eudn/2013/163/annex/division/6/division/1.6/division/1.6.3 (the official version)
Page: https://openlegislation.uk/eu-decision-2013-163/annex/division-6/division-1.6/division-1.6.3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.