{
  "url": "https://openlegislation.uk/eu-decision-2017-1442/annex/division-4/division-4.2/division-4.2.3/division-1",
  "json_url": "https://openlegislation.uk/eu-decision-2017-1442/annex/division-4/division-4.2/division-4.2.3/division-1.json",
  "legislation": "eudn/2017/1442",
  "legislation_title": "Commission Implementing Decision (EU) 2017/1442 of 31 July 2017 establishing best available techniques (BAT) conclusions, under Directive 2010/75/EU of the European Parliament and of the Council, for large combustion plants (notified under document C(2017) 5225) (Text with EEA relevance)",
  "legislation_url": "https://openlegislation.uk/eu-decision-2017-1442",
  "path": "annex/division/4/division/4.2/division/4.2.3/division/1",
  "kind": "division",
  "number": "BAT 50",
  "heading": "In order to prevent or reduce SOX emissions to air from the combustion of iron and steel process gases, BAT is to use a combination of the techniques given below.",
  "text": "Technique\nDescription\nApplicability\na.\nProcess gas management system and auxiliary fuel choice\nSee description in Section 8.2.\nTo the extent allowed by the iron- and steel-works, maximise the use of:\na majority of blast furnace gas with a low sulphur content in the fuel diet,\na combination of fuels with a low averaged sulphur content, e.g. individual process fuels with a very low S content such as:\nBlast furnace gas with a sulphur content < 10 mg/Nm3,\ncoke oven gas with a sulphur content < 300 mg/Nm3,\nand auxiliary fuels such as:\nnatural gas,\nliquid fuels with a sulphur content of ≤ 0,4 % (in boilers).\nUse of a limited amount of fuels with a higher sulphur content\nGenerally applicable within the constraints associated with the availability of different types of fuel\nb.\nCoke oven gas pretreatment at the iron- and steel-works\nUse of one of the following techniques:\ndesulphurisation by absorption systems,\nwet oxidative desulphurisation\nOnly applicable to coke oven gas combustion plants\nTable 30\nBAT-associated emission levels (BAT-AELs) for SO2 emissions to air from the combustion of 100 % iron and steel process gases\nFor existing plants operated < 1 500 h/yr, these BAT AELs do not apply.\nFor existing plants operated < 500 h/yr, these levels are indicative.\nThe higher end of the BAT-AEL range may be exceeded when using a high share of COG (e.g. > 50 %). In this case, the higher end of the BAT-AEL range is 300 mg/Nm3.\nType of combustion plant\nO2 reference level (%)\nBAT-AELs for SO2 (mg/Nm3)\nYearly average\nDaily average or average over the sampling period\nNew or existing boiler\n3\n25–150\n50–200\nNew or existing CCGT\n15\n10–45\n20–70",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "footnote",
      "label": "f1",
      "text": "For existing plants operated < 1 500 h/yr, these BAT AELs do not apply."
    },
    {
      "type": "footnote",
      "label": "f2",
      "text": "For existing plants operated < 500 h/yr, these levels are indicative."
    },
    {
      "type": "footnote",
      "label": "f3",
      "text": "The higher end of the BAT-AEL range may be exceeded when using a high share of COG (e.g. > 50 %). In this case, the higher end of the BAT-AEL range is 300 mg/Nm3."
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eudn/2017/1442/annex/division/4/division/4.2/division/4.2.3/division/1",
    "retrieved_at": "2026-11-01T15:13:23.628050+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}