{
  "authors": [],
  "basis": {
    "capacity": "per tonne of benzene, toluene and mixed xylenes together (the dataset's basis); no plant size"
  },
  "benchmarks": [
    {
      "dataset": "btx-reformate-extraction",
      "expression": "feed:electricity / (product:benzene + product:toluene + product:xylenes)",
      "family": "aromatics",
      "kpi": "btx-extraction-electricity",
      "problem": "kWh/kg to kWh/t needs core's foundation.units (pip install 'cheme-as-code[units]')",
      "reference": {
        "basis": "unallocated",
        "conditions": {
          "region": "EU",
          "technology": "aromatics extraction and benzene/toluene fractionation (BB2)",
          "year": 2012
        },
        "id": "bref-lvoc-btx-extraction-electricity",
        "note": "Not independent of btx-1, whose electricity is the midpoint of this range.",
        "range": [
          11,
          72
        ],
        "source": {
          "accessed": "2026-11-05",
          "citation": "Falcke, H. et al. (2017) Best Available Techniques (BAT) Reference Document for the Production of Large Volume Organic Chemicals. JRC Science for Policy Report EUR 28882 EN, doi:10.2760/77304",
          "kind": "bref",
          "locator": "Table 4.3, p. 217",
          "url": "https://bureau-industrial-transformation.jrc.ec.europa.eu/sites/default/files/2019-11/JRC109279_LVOC_Bref.pdf"
        }
      },
      "status": "unchecked",
      "title": "Electricity per t of benzene, toluene and xylenes extracted",
      "unit": "kWh/t",
      "value": null
    },
    {
      "dataset": "btx-reformate-extraction",
      "expression": "(feed:electricity + feed:steam + feed:fuel-heat) / (product:benzene + product:toluene + product:xylenes)",
      "family": "aromatics",
      "kpi": "btx-extraction-total-energy",
      "problem": "kWh/kg to kWh/t needs core's foundation.units (pip install 'cheme-as-code[units]')",
      "reference": {
        "basis": "unallocated",
        "conditions": {
          "region": "EU",
          "technology": "aromatics extraction and benzene/toluene fractionation (BB2)",
          "year": 2012
        },
        "id": "bref-lvoc-btx-extraction-energy",
        "note": "The source's total for BTX extraction units (BB2), per tonne of product; reading the product as the extracted benzene, toluene and xylenes is ours. Not independent of btx-1, whose electricity, steam and fuel are midpoints of the same table.",
        "range": [
          633,
          1564
        ],
        "source": {
          "accessed": "2026-11-05",
          "citation": "Falcke, H. et al. (2017) Best Available Techniques (BAT) Reference Document for the Production of Large Volume Organic Chemicals. JRC Science for Policy Report EUR 28882 EN, doi:10.2760/77304",
          "kind": "bref",
          "locator": "Table 4.3, p. 217",
          "url": "https://bureau-industrial-transformation.jrc.ec.europa.eu/sites/default/files/2019-11/JRC109279_LVOC_Bref.pdf"
        }
      },
      "status": "unchecked",
      "title": "Electricity, steam and fired heat per t of benzene, toluene and xylenes extracted",
      "unit": "kWh/t",
      "value": null
    }
  ],
  "chemistry": {
    "inputs": [
      {
        "chemical": "reformate",
        "grade": null,
        "inventory_key": "feed:reformate",
        "note": "debutanised C5+ reformate; linked to catalytic-reforming-1 (stabilised C5+ CCR reformate) in lca/mappings.yaml, whose pseudo-formula composition differs from the DOE slate this dataset uses",
        "role": "feedstock"
      },
      {
        "chemical": "water",
        "grade": null,
        "inventory_key": "feed:water",
        "note": "ASSUMED equal to the water drained",
        "role": "feedstock"
      }
    ],
    "outputs": [
      {
        "chemical": "benzene",
        "grade": null,
        "inventory_key": "product:benzene",
        "role": "main-product"
      },
      {
        "chemical": "toluene",
        "grade": null,
        "inventory_key": "product:toluene",
        "role": "co-product"
      },
      {
        "chemical": "xylenes",
        "grade": null,
        "inventory_key": "product:xylenes",
        "note": "mixed xylenes with ethylbenzene",
        "role": "co-product"
      },
      {
        "chemical": "aromatics-raffinate",
        "grade": null,
        "inventory_key": "product:raffinate",
        "role": "co-product"
      },
      {
        "chemical": "heavy-aromatics",
        "grade": null,
        "inventory_key": "product:c9-aromatics",
        "role": "co-product"
      },
      {
        "chemical": "wastewater",
        "grade": null,
        "inventory_key": "output:wastewater",
        "role": "waste"
      }
    ],
    "utilities": [
      {
        "chemical": "electricity",
        "grade": null,
        "inventory_key": "feed:electricity",
        "role": "utility"
      },
      {
        "chemical": "steam",
        "grade": null,
        "inventory_key": "feed:steam",
        "note": "counted as heat delivered, gross of heat recovery",
        "role": "utility"
      }
    ]
  },
  "description": "",
  "design_basis": null,
  "engineering": null,
  "facets": {
    "feedstock_basis": [
      "fossil"
    ],
    "product_classes": [
      "chemicals"
    ],
    "region": "EU",
    "unit_operations": [
      "extraction",
      "distillation"
    ]
  },
  "families": [
    "aromatics"
  ],
  "gap_count": 3,
  "gates": null,
  "id": "btx-1",
  "issues": {
    "closed_count": 0,
    "list_url": "https://github.com/ChemE-as-Code/process-library/issues?q=is%3Aissue%20label%3A%22process%3Abtx-1%22",
    "new": {
      "action": "https://github.com/ChemE-as-Code/process-library/issues/new?template=1-action-item.yml&labels=process%3Abtx-1&process=btx-1",
      "change": "https://github.com/ChemE-as-Code/process-library/issues/new?template=4-design-change.yml&labels=process%3Abtx-1&process=btx-1",
      "hold": "https://github.com/ChemE-as-Code/process-library/issues/new?template=2-engineering-hold.yml&labels=process%3Abtx-1&process=btx-1",
      "process": "https://github.com/ChemE-as-Code/process-library/issues/new?template=6-process-development.yml&labels=process%3Abtx-1&process=btx-1",
      "tq": "https://github.com/ChemE-as-Code/process-library/issues/new?template=3-technical-query.yml&labels=process%3Abtx-1&process=btx-1",
      "tracker": "https://github.com/ChemE-as-Code/process-library/issues/new?template=7-process-tracker.yml&labels=process%3Abtx-1&process=btx-1"
    },
    "open": [],
    "open_by_gate": {},
    "open_count": 0,
    "private": false,
    "repository": "ChemE-as-Code/process-library"
  },
  "keywords": [
    "benzene",
    "toluene",
    "xylenes",
    "BTX",
    "aromatics extraction",
    "sulfolane",
    "reformate",
    "raffinate",
    "clay treatment"
  ],
  "lca": null,
  "lci_gaps": [
    {
      "dataset": "btx-reformate-extraction",
      "key": "input:clay",
      "link": "technosphere",
      "type": "input"
    },
    {
      "dataset": "btx-reformate-extraction",
      "key": "output:spent-clay",
      "link": "technosphere",
      "type": "output"
    },
    {
      "dataset": "btx-reformate-extraction",
      "key": "output:solvent-sludge",
      "link": "technosphere",
      "type": "output"
    }
  ],
  "maintainers": [],
  "maturity": "concept",
  "preliminary": true,
  "provenance": {
    "library_commit": "a3c52e472f42fbc8cdacfeacf5ef28703c004174",
    "previews": null,
    "previews_stale": false,
    "source_commit": "a3c52e472f42fbc8cdacfeacf5ef28703c004174"
  },
  "publication": {
    "license": "CC-BY-4.0",
    "status": "public"
  },
  "references": [
    {
      "doi": "10.2760/77304",
      "title": "Falcke, H. et al. (2017) Best Available Techniques (BAT) Reference Document for the Production of Large Volume Organic Chemicals. JRC Science for Policy Report EUR 28882 EN (JRC109279), chapter 4"
    },
    {
      "title": "US Department of Energy, Office of Industrial Technologies (2000) Energy and Environmental Profile of the U.S. Chemical Industry, chapter 4 (BTX chain), Table 4-1",
      "url": "https://www.energy.gov/sites/prod/files/2013/11/f4/profile_full.pdf"
    },
    {
      "title": "Barthe, P. et al. (2015) Best Available Techniques (BAT) Reference Document for the Refining of Mineral Oil and Gas. JRC Science and Policy Report EUR 27140 EN, section 2.6",
      "url": "https://eippcb.jrc.ec.europa.eu/sites/default/files/2019-11/REF_BREF_2015.pdf"
    },
    {
      "title": "Honeywell UOP, Aromatics recovery (ED Sulfolane process), web page, accessed 2026-11-05 (manufacturer literature)",
      "url": "https://uop.honeywell.com/en/industry-solutions/petrochemicals/aromatics-recovery"
    }
  ],
  "repository": {
    "access": "public",
    "path": "processes/btx-1",
    "url": "https://github.com/ChemE-as-Code/process-library"
  },
  "representations": [],
  "summary": "Sourced conceptual inventory per tonne of benzene, toluene and mixed xylenes together, with raffinate and C9+ aromatics as co-products: a typical reformate slate (US DOE 2000) and midpoints of the EU LVOC BREF utility ranges for BTX extraction units. No flowsheet; not reviewed.",
  "title": "Benzene, toluene and mixed xylenes by solvent extraction of catalytic reformate",
  "validation": {
    "status": "unreviewed"
  },
  "viewer": null
}