{
  "url": "https://openlegislation.uk/eu-decision-2017-1442/annex/division-4/division-4.2/division-4.2.2/division-3",
  "json_url": "https://openlegislation.uk/eu-decision-2017-1442/annex/division-4/division-4.2/division-4.2.2/division-3.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/4.2.2/division/3",
  "kind": "division",
  "number": "BAT 49",
  "heading": "In order to prevent or reduce CO emissions to air from the combustion of iron and steel process gases, BAT is to use one or a combination of the techniques given below.",
  "text": "Technique\nDescription\nApplicability\na.\nCombustion optimisation\nSee descriptions in Section 8.3\nGenerally applicable\nb.\nOxidation catalysts\nOnly applicable to CCGTs.\nThe applicability may be limited by lack of space, the load requirements and the sulphur content of the fuel\nTable 29\nBAT-associated emission levels (BAT-AELs) for NOX emissions to air from the combustion of 100 % iron and steel process gases\nPlants combusting a mixture of gases with an equivalent LHV of > 20 MJ/Nm3 are expected to emit at the higher end of the BAT-AEL ranges.\nThe lower end of the BAT-AEL range can be achieved when using SCR.\nFor plants operated < 1 500 h/yr, these BAT AELs do not apply.\nIn the case of plants put into operation no later than 7 January 2014, the higher end of the BAT-AEL range is 160 mg/Nm3. Furthermore, the higher end of the BAT-AEL range may be exceeded when SCR cannot be used and when using a high share of COG (e.g. > 50 %) and/or when combusting COG with a relatively high level of H2. In this case, the higher end of the BAT-AEL range is 220 mg/Nm3.\nFor plants operated < 500 h/yr, these levels are indicative.\nIn the case of plants put into operation no later than 7 January 2014, the higher end of the BAT-AEL range is 70 mg/Nm3.\nType of combustion plant\nO2 reference level (vol-%)\nBAT-AELs (mg/Nm3)\nYearly average\nDaily average or average over the sampling period\nNew boiler\n3\n15–65\n22–100\nExisting boiler\n3\n20–100\n22–110\nNew CCGT\n15\n20–35\n30–50\nExisting CCGT\n15\n20–50\n30–55\nAs an indication, the yearly average CO emission levels will generally be:\n< 5–100 mg/Nm3 for existing boilers operated ≥ 1 500 h/yr,\n< 5–35 mg/Nm3 for new boilers,\n< 5–20 mg/Nm3 for existing CCGTs operated ≥ 1 500 h/yr or new CCGTs.",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "footnote",
      "label": "f1",
      "text": "Plants combusting a mixture of gases with an equivalent LHV of > 20 MJ/Nm3 are expected to emit at the higher end of the BAT-AEL ranges."
    },
    {
      "type": "footnote",
      "label": "f2",
      "text": "The lower end of the BAT-AEL range can be achieved when using SCR."
    },
    {
      "type": "footnote",
      "label": "f3",
      "text": "For plants operated < 1 500 h/yr, these BAT AELs do not apply."
    },
    {
      "type": "footnote",
      "label": "f4",
      "text": "In the case of plants put into operation no later than 7 January 2014, the higher end of the BAT-AEL range is 160 mg/Nm3. Furthermore, the higher end of the BAT-AEL range may be exceeded when SCR cannot be used and when using a high share of COG (e.g. > 50 %) and/or when combusting COG with a relatively high level of H2. In this case, the higher end of the BAT-AEL range is 220 mg/Nm3."
    },
    {
      "type": "footnote",
      "label": "f5",
      "text": "For plants operated < 500 h/yr, these levels are indicative."
    },
    {
      "type": "footnote",
      "label": "f6",
      "text": "In the case of plants put into operation no later than 7 January 2014, the higher end of the BAT-AEL range is 70 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/4.2.2/division/3",
    "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."
}