{
  "authors": [],
  "basis": {
    "capacity": "per tonne of styrene (the dataset's basis); no plant size"
  },
  "benchmarks": [
    {
      "dataset": "styrene-eb-dehydrogenation",
      "expression": "feed:ethylbenzene / product:styrene",
      "family": "styrenics",
      "kpi": "sm-specific-ethylbenzene",
      "problem": "1 to kg/t needs core's foundation.units (pip install 'cheme-as-code[units]')",
      "reference": {
        "basis": "unallocated",
        "conditions": {
          "region": "EU",
          "technology": "ethylbenzene dehydrogenation; source plants of Table 5.9: 2011 and a 2007-2011 average",
          "year": 2011
        },
        "id": "bref-lvoc-sm-eb",
        "range": [
          1040,
          1100
        ],
        "source": {
          "accessed": "2026-11-01",
          "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": "Section 5.3.4.1, p. 281",
          "url": "https://bureau-industrial-transformation.jrc.ec.europa.eu/sites/default/files/2019-11/JRC109279_LVOC_Bref.pdf"
        }
      },
      "status": "unchecked",
      "title": "Ethylbenzene consumption per t of styrene",
      "unit": "kg/t",
      "value": null
    },
    {
      "dataset": "styrene-eb-dehydrogenation",
      "expression": "product:toluene / product:styrene",
      "family": "styrenics",
      "kpi": "sm-specific-toluene",
      "problem": "1 to kg/t needs core's foundation.units (pip install 'cheme-as-code[units]')",
      "reference": {
        "basis": "unallocated",
        "conditions": {
          "region": "EU",
          "technology": "ethylbenzene dehydrogenation"
        },
        "id": "bref-lvoc-sm-toluene",
        "range": [
          16,
          94
        ],
        "source": {
          "accessed": "2026-11-01",
          "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": "Section 5.3.6.2, p. 285",
          "url": "https://bureau-industrial-transformation.jrc.ec.europa.eu/sites/default/files/2019-11/JRC109279_LVOC_Bref.pdf"
        }
      },
      "status": "unchecked",
      "title": "Toluene by-product per t of styrene",
      "unit": "kg/t",
      "value": null
    }
  ],
  "chemistry": {
    "inputs": [
      {
        "chemical": "ethylbenzene",
        "grade": null,
        "inventory_key": "feed:ethylbenzene",
        "note": "linked to ethylbenzene-1 (lca/mappings.yaml)",
        "role": "feedstock"
      },
      {
        "chemical": "methane",
        "grade": null,
        "inventory_key": "feed:natural-gas",
        "note": "natural gas, taken as pure methane (ASSUMED)",
        "role": "feedstock"
      },
      {
        "chemical": "air",
        "grade": null,
        "note": "combustion air, free; its O2 is feed:O2",
        "role": "feedstock"
      },
      {
        "chemical": "water",
        "grade": null,
        "note": "Condensed dilution steam, free in the dataset (feed:water): it belongs to the steam exchange and only closes the element balance",
        "role": "feedstock"
      }
    ],
    "outputs": [
      {
        "chemical": "styrene",
        "grade": null,
        "inventory_key": "product:styrene",
        "role": "main-product"
      },
      {
        "chemical": "toluene",
        "grade": null,
        "inventory_key": "product:toluene",
        "role": "co-product"
      },
      {
        "chemical": "benzene",
        "grade": null,
        "inventory_key": "product:benzene",
        "role": "co-product"
      },
      {
        "chemical": "carbon-dioxide",
        "grade": null,
        "inventory_key": "emission:CO2",
        "role": "emission"
      },
      {
        "chemical": "water",
        "grade": null,
        "inventory_key": "emission:H2O",
        "note": "combustion water vapour",
        "role": "emission"
      },
      {
        "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": [
      "reaction",
      "distillation",
      "combustion"
    ]
  },
  "families": [
    "styrenics"
  ],
  "gap_count": 5,
  "gates": null,
  "id": "styrene-1",
  "issues": {
    "closed_count": 0,
    "list_url": "https://github.com/ChemE-as-Code/process-library/issues?q=is%3Aissue%20label%3A%22process%3Astyrene-1%22",
    "new": {
      "action": "https://github.com/ChemE-as-Code/process-library/issues/new?template=1-action-item.yml&labels=process%3Astyrene-1&process=styrene-1",
      "change": "https://github.com/ChemE-as-Code/process-library/issues/new?template=4-design-change.yml&labels=process%3Astyrene-1&process=styrene-1",
      "hold": "https://github.com/ChemE-as-Code/process-library/issues/new?template=2-engineering-hold.yml&labels=process%3Astyrene-1&process=styrene-1",
      "process": "https://github.com/ChemE-as-Code/process-library/issues/new?template=6-process-development.yml&labels=process%3Astyrene-1&process=styrene-1",
      "tq": "https://github.com/ChemE-as-Code/process-library/issues/new?template=3-technical-query.yml&labels=process%3Astyrene-1&process=styrene-1",
      "tracker": "https://github.com/ChemE-as-Code/process-library/issues/new?template=7-process-tracker.yml&labels=process%3Astyrene-1&process=styrene-1"
    },
    "open": [],
    "open_by_gate": {},
    "open_count": 0,
    "private": false,
    "repository": "ChemE-as-Code/process-library"
  },
  "keywords": [
    "styrene",
    "styrene monomer",
    "ethylbenzene",
    "dehydrogenation",
    "steam superheater",
    "toluene"
  ],
  "lca": null,
  "lci_gaps": [
    {
      "dataset": "styrene-eb-dehydrogenation",
      "key": "input:catalyst",
      "link": "technosphere",
      "type": "input"
    },
    {
      "dataset": "styrene-eb-dehydrogenation",
      "key": "input:inhibitor",
      "link": "technosphere",
      "type": "input"
    },
    {
      "dataset": "styrene-eb-dehydrogenation",
      "key": "output:spent-catalyst",
      "link": "technosphere",
      "type": "output"
    },
    {
      "dataset": "styrene-eb-dehydrogenation",
      "key": "output:tar",
      "link": "technosphere",
      "type": "output"
    },
    {
      "dataset": "styrene-eb-dehydrogenation",
      "key": "emission:PM",
      "link": "biosphere",
      "type": "emission"
    }
  ],
  "maintainers": [],
  "maturity": "concept",
  "preliminary": true,
  "provenance": {
    "library_commit": "c3ab3488c602bc797fdc98feffd4578375150dd0",
    "previews": null,
    "previews_stale": false,
    "source_commit": "c3ab3488c602bc797fdc98feffd4578375150dd0"
  },
  "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 5"
    }
  ],
  "repository": {
    "access": "public",
    "path": "processes/styrene-1",
    "url": "https://github.com/ChemE-as-Code/process-library"
  },
  "representations": [],
  "summary": "Sourced conceptual inventory per tonne of styrene monomer, with toluene and benzene as co-products: midpoints of EU LVOC BREF ranges and a closing balance. No flowsheet; not reviewed.",
  "title": "Styrene by adiabatic catalytic dehydrogenation of ethylbenzene",
  "validation": {
    "status": "unreviewed"
  },
  "viewer": null
}