Secondary fuel

{
  "id": "MLC-T-ENV-025005",
  "term": "Secondary fuel",
  "field": "Environment",
  "term_source": "Secondary Fuel",
  "definition": "1. Fuel fired through a burner other than a primary fuel burner. The secondary fuel may provide supplementary heat in addition to the heat provided by the primary fuel.\n\n2. Fuel fired through a burner other than the primary fuel burner that provides supplementary heat in addition to the heat provided by the primary fuel.",
  "subject": "Chemical substances",
  "references": [
    "40 CFR 60.701 (CFR 2013)",
    "40 CFR 63.981 (CFR 2013); 40 CFR 65.2 (CFR 2013); 40 CFR 63.101 (CFR 2024)"
  ],
  "url": "https://mlchart.com/terminology/environment/secondary-fuel/"
}