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        "note": null,
        "phase": "operation",
        "replaced": false,
        "scope": null,
        "source_id": null,
        "state": "released",
        "status": null,
        "title": "Vent to atmosphere",
        "unit": "kg",
        "year": null
      },
      {
        "amount": 2252.29,
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        "key": "product:COND",
        "location": null,
        "note": null,
        "phase": "operation",
        "replaced": false,
        "scope": null,
        "source_id": null,
        "state": "released",
        "status": null,
        "title": "Condensate (MAC cooler drains; DCAC condensate into its circulating water)",
        "unit": "kg",
        "year": null
      },
      {
        "amount": 10721.4,
        "background": "cooling-water",
        "baseline": "factor:cooling-water",
        "key": "product:CW",
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        "note": null,
        "phase": "operation",
        "replaced": false,
        "scope": {
          "gases": "co2e",
          "gwp": "AR4/AR5"
        },
        "source_id": "desnz-ghg-2026",
        "state": "linked",
        "status": "ESTIMATE",
        "title": "Cooling water return (heat rejected)",
        "unit": "kWh",
        "year": 2026
      },
      {
        "amount": 1342.86,
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        "baseline": "free",
        "key": "emission:AR",
        "location": null,
        "note": null,
        "phase": "operation",
        "replaced": false,
        "scope": null,
        "source_id": null,
        "state": "free",
        "status": null,
        "title": "AR to the environment",
        "unit": "kg",
        "year": null
      },
      {
        "amount": 70.7888,
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        "baseline": "free",
        "key": "emission:CO2",
        "location": null,
        "note": null,
        "phase": "operation",
        "replaced": false,
        "scope": null,
        "source_id": null,
        "state": "free",
        "status": null,
        "title": "CO2 to the environment",
        "unit": "kg",
        "year": null
      },
      {
        "amount": 2394.41,
        "background": null,
        "baseline": "free",
        "key": "emission:H2O",
        "location": null,
        "note": null,
        "phase": "operation",
        "replaced": false,
        "scope": null,
        "source_id": null,
        "state": "free",
        "status": null,
        "title": "H2O to the environment",
        "unit": "kg",
        "year": null
      },
      {
        "amount": 70798.9,
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        "baseline": "free",
        "key": "emission:N2",
        "location": null,
        "note": null,
        "phase": "operation",
        "replaced": false,
        "scope": null,
        "source_id": null,
        "state": "free",
        "status": null,
        "title": "N2 to the environment",
        "unit": "kg",
        "year": null
      },
      {
        "amount": 4418.11,
        "background": null,
        "baseline": "free",
        "key": "emission:O2",
        "location": null,
        "note": null,
        "phase": "operation",
        "replaced": false,
        "scope": null,
        "source_id": null,
        "state": "free",
        "status": null,
        "title": "O2 to the environment",
        "unit": "kg",
        "year": null
      },
      {
        "amount": 2.8718,
        "background": "desnz-ghg-2026:metals-construction",
        "baseline": "factor:desnz-ghg-2026:metals-construction",
        "key": "construction:steel",
        "location": "GB",
        "note": "UK construction metals (primary) for rack and structure steel",
        "phase": "construction",
        "replaced": false,
        "scope": {
          "gases": "co2e",
          "gwp": "AR4/AR5"
        },
        "source_id": "desnz-ghg-2026",
        "state": "proxy",
        "status": "PROXY",
        "title": "Structural steel",
        "unit": "kg",
        "year": 2026
      },
      {
        "amount": 0.0246471,
        "background": null,
        "baseline": "missing: no open factor per m of pipe; the take-off gives length by DN, not mass",
        "gaps": [
          "climate-change"
        ],
        "key": "construction:pipe",
        "location": null,
        "note": "no open factor per m of pipe; the take-off gives length by DN, not mass",
        "phase": "construction",
        "replaced": false,
        "scope": null,
        "source_id": null,
        "state": "missing",
        "status": null,
        "title": "Pipe",
        "unit": "m",
        "year": null
      },
      {
        "amount": 0.000917814,
        "background": "concrete-m3",
        "baseline": "factor:concrete-m3",
        "key": "construction:concrete",
        "location": "GB",
        "note": null,
        "phase": "construction",
        "replaced": false,
        "scope": {
          "gases": "co2e",
          "gwp": "AR4/AR5"
        },
        "source_id": "desnz-ghg-2026",
        "state": "linked",
        "status": "ESTIMATE",
        "title": "Concrete",
        "unit": "m3",
        "year": 2026
      },
      {
        "amount": 0.00295929,
        "background": null,
        "baseline": "missing: no open factor per m2 of grating",
        "gaps": [
          "climate-change"
        ],
        "key": "construction:grating",
        "location": null,
        "note": "no open factor per m2 of grating",
        "phase": "construction",
        "replaced": false,
        "scope": null,
        "source_id": null,
        "state": "missing",
        "status": null,
        "title": "Grating",
        "unit": "m2",
        "year": null
      },
      {
        "amount": 0.0015202,
        "background": null,
        "baseline": "missing: the take-off gives m2; the open insulation factor is per t",
        "gaps": [
          "climate-change"
        ],
        "key": "construction:insulation",
        "location": null,
        "note": "the take-off gives m2; the open insulation factor is per t",
        "phase": "construction",
        "replaced": false,
        "scope": null,
        "source_id": null,
        "state": "missing",
        "status": null,
        "title": "Pipe insulation",
        "unit": "m2",
        "year": null
      },
      {
        "amount": 0.000542857,
        "background": null,
        "baseline": "missing: no open factor per piece",
        "gaps": [
          "climate-change"
        ],
        "key": "construction:valves",
        "location": null,
        "note": "no open factor per piece",
        "phase": "construction",
        "replaced": false,
        "scope": null,
        "source_id": null,
        "state": "missing",
        "status": null,
        "title": "Valves",
        "unit": "ea",
        "year": null
      },
      {
        "amount": 0.00187143,
        "background": null,
        "baseline": "missing: no open factor per piece",
        "gaps": [
          "climate-change"
        ],
        "key": "construction:flanges",
        "location": null,
        "note": "no open factor per piece",
        "phase": "construction",
        "replaced": false,
        "scope": null,
        "source_id": null,
        "state": "missing",
        "status": null,
        "title": "Flanges",
        "unit": "ea",
        "year": null
      },
      {
        "amount": 0.00187143,
        "background": null,
        "baseline": "missing: no open factor per piece",
        "gaps": [
          "climate-change"
        ],
        "key": "construction:gaskets",
        "location": null,
        "note": "no open factor per piece",
        "phase": "construction",
        "replaced": false,
        "scope": null,
        "source_id": null,
        "state": "missing",
        "status": null,
        "title": "Gaskets",
        "unit": "ea",
        "year": null
      },
      {
        "amount": 0.00379524,
        "background": null,
        "baseline": "missing: no open factor per piece",
        "gaps": [
          "climate-change"
        ],
        "key": "construction:elbows",
        "location": null,
        "note": "no open factor per piece",
        "phase": "construction",
        "replaced": false,
        "scope": null,
        "source_id": null,
        "state": "missing",
        "status": null,
        "title": "Elbows",
        "unit": "ea",
        "year": null
      },
      {
        "amount": 0.000352381,
        "background": null,
        "baseline": "missing: no open factor per piece",
        "gaps": [
          "climate-change"
        ],
        "key": "construction:tees",
        "location": null,
        "note": "no open factor per piece",
        "phase": "construction",
        "replaced": false,
        "scope": null,
        "source_id": null,
        "state": "missing",
        "status": null,
        "title": "Tees",
        "unit": "ea",
        "year": null
      },
      {
        "amount": 4.7619e-06,
        "background": null,
        "baseline": "missing: no open factor per piece",
        "gaps": [
          "climate-change"
        ],
        "key": "construction:reducers",
        "location": null,
        "note": "no open factor per piece",
        "phase": "construction",
        "replaced": false,
        "scope": null,
        "source_id": null,
        "state": "missing",
        "status": null,
        "title": "Reducers",
        "unit": "ea",
        "year": null
      },
      {
        "amount": 3.33333e-05,
        "background": null,
        "baseline": "missing: no open factor per piece",
        "gaps": [
          "climate-change"
        ],
        "key": "construction:inline",
        "location": null,
        "note": "no open factor per piece",
        "phase": "construction",
        "replaced": false,
        "scope": null,
        "source_id": null,
        "state": "missing",
        "status": null,
        "title": "In-line items",
        "unit": "ea",
        "year": null
      },
      {
        "amount": 0.604762,
        "background": "desnz-ghg-2026:aluminium-cans-foil",
        "baseline": "factor:desnz-ghg-2026:aluminium-cans-foil",
        "key": "construction:equipment-al",
        "location": "GB",
        "note": "UK primary aluminium of cans and foil (excl. forming) for brazed exchanger aluminium",
        "phase": "construction",
        "replaced": false,
        "scope": {
          "gases": "co2e",
          "gwp": "AR4/AR5"
        },
        "source_id": "desnz-ghg-2026",
        "state": "proxy",
        "status": "PROXY",
        "title": "Aluminium equipment",
        "unit": "kg",
        "year": 2026
      },
      {
        "amount": 2.16905,
        "background": "desnz-ghg-2026:metals-construction",
        "baseline": "factor:desnz-ghg-2026:metals-construction",
        "key": "construction:equipment-cs",
        "location": "GB",
        "note": "UK construction metals (primary) for carbon steel shells and casings",
        "phase": "construction",
        "replaced": false,
        "scope": {
          "gases": "co2e",
          "gwp": "AR4/AR5"
        },
        "source_id": "desnz-ghg-2026",
        "state": "proxy",
        "status": "PROXY",
        "title": "Carbon steel equipment",
        "unit": "kg",
        "year": 2026
      },
      {
        "amount": 0.466667,
        "background": "desnz-ghg-2026:metals-construction",
        "baseline": "factor:desnz-ghg-2026:metals-construction",
        "key": "construction:equipment-ss",
        "location": "GB",
        "note": "UK construction metals (primary) for stainless steel: likely an underestimate (alloying elements)",
        "phase": "construction",
        "replaced": false,
        "scope": {
          "gases": "co2e",
          "gwp": "AR4/AR5"
        },
        "source_id": "desnz-ghg-2026",
        "state": "proxy",
        "status": "PROXY",
        "title": "Stainless steel equipment",
        "unit": "kg",
        "year": 2026
      },
      {
        "amount": 0.714286,
        "background": null,
        "baseline": "missing: no open factor for 13X molecular sieve or activated alumina production",
        "gaps": [
          "climate-change"
        ],
        "key": "consumable:molecular-sieve",
        "location": null,
        "note": "no open factor for 13X molecular sieve or activated alumina production",
        "phase": "operation",
        "replaced": false,
        "scope": null,
        "source_id": null,
        "state": "missing",
        "status": null,
        "title": "Molecular sieve 13X and activated alumina (V-2101A/B)",
        "unit": "kg",
        "year": null
      },
      {
        "amount": 0.238095,
        "background": null,
        "baseline": "missing: no open factor for lubricating oil production",
        "gaps": [
          "climate-change"
        ],
        "key": "consumable:lube-oil",
        "location": null,
        "note": "no open factor for lubricating oil production",
        "phase": "operation",
        "replaced": false,
        "scope": null,
        "source_id": null,
        "state": "missing",
        "status": null,
        "title": "Lubricating oil (K-1101, K-4101, K-4102, K-3101)",
        "unit": "kg",
        "year": null
      },
      {
        "amount": 0.71795,
        "background": "desnz-ghg-2026:metals-construction",
        "baseline": "factor:desnz-ghg-2026:metals-construction",
        "key": "maintenance:steel",
        "location": "GB",
        "note": "UK construction metals (primary) for rack and structure steel",
        "phase": "maintenance",
        "replaced": false,
        "scope": {
          "gases": "co2e",
          "gwp": "AR4/AR5"
        },
        "source_id": "desnz-ghg-2026",
        "state": "proxy",
        "status": "PROXY",
        "title": "Maintenance: Structural steel",
        "unit": "kg",
        "year": 2026
      },
      {
        "amount": 0.00616177,
        "background": null,
        "baseline": "missing: no open factor per m of pipe; the take-off gives length by DN, not mass",
        "gaps": [
          "climate-change"
        ],
        "key": "maintenance:pipe",
        "location": null,
        "note": "no open factor per m of pipe; the take-off gives length by DN, not mass",
        "phase": "maintenance",
        "replaced": false,
        "scope": null,
        "source_id": null,
        "state": "missing",
        "status": null,
        "title": "Maintenance: Pipe",
        "unit": "m",
        "year": null
      },
      {
        "amount": 0.00038005,
        "background": null,
        "baseline": "missing: the take-off gives m2; the open insulation factor is per t",
        "gaps": [
          "climate-change"
        ],
        "key": "maintenance:insulation",
        "location": null,
        "note": "the take-off gives m2; the open insulation factor is per t",
        "phase": "maintenance",
        "replaced": false,
        "scope": null,
        "source_id": null,
        "state": "missing",
        "status": null,
        "title": "Maintenance: Pipe insulation",
        "unit": "m2",
        "year": null
      },
      {
        "amount": 0.000135714,
        "background": null,
        "baseline": "missing: no open factor per piece",
        "gaps": [
          "climate-change"
        ],
        "key": "maintenance:valves",
        "location": null,
        "note": "no open factor per piece",
        "phase": "maintenance",
        "replaced": false,
        "scope": null,
        "source_id": null,
        "state": "missing",
        "status": null,
        "title": "Maintenance: Valves",
        "unit": "ea",
        "year": null
      },
      {
        "amount": 0.15119,
        "background": "desnz-ghg-2026:aluminium-cans-foil",
        "baseline": "factor:desnz-ghg-2026:aluminium-cans-foil",
        "key": "maintenance:equipment-al",
        "location": "GB",
        "note": "UK primary aluminium of cans and foil (excl. forming) for brazed exchanger aluminium",
        "phase": "maintenance",
        "replaced": false,
        "scope": {
          "gases": "co2e",
          "gwp": "AR4/AR5"
        },
        "source_id": "desnz-ghg-2026",
        "state": "proxy",
        "status": "PROXY",
        "title": "Maintenance: Aluminium equipment",
        "unit": "kg",
        "year": 2026
      },
      {
        "amount": 0.542262,
        "background": "desnz-ghg-2026:metals-construction",
        "baseline": "factor:desnz-ghg-2026:metals-construction",
        "key": "maintenance:equipment-cs",
        "location": "GB",
        "note": "UK construction metals (primary) for carbon steel shells and casings",
        "phase": "maintenance",
        "replaced": false,
        "scope": {
          "gases": "co2e",
          "gwp": "AR4/AR5"
        },
        "source_id": "desnz-ghg-2026",
        "state": "proxy",
        "status": "PROXY",
        "title": "Maintenance: Carbon steel equipment",
        "unit": "kg",
        "year": 2026
      },
      {
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        "background": "desnz-ghg-2026:metals-construction",
        "baseline": "factor:desnz-ghg-2026:metals-construction",
        "key": "maintenance:equipment-ss",
        "location": "GB",
        "note": "UK construction metals (primary) for stainless steel: likely an underestimate (alloying elements)",
        "phase": "maintenance",
        "replaced": false,
        "scope": {
          "gases": "co2e",
          "gwp": "AR4/AR5"
        },
        "source_id": "desnz-ghg-2026",
        "state": "proxy",
        "status": "PROXY",
        "title": "Maintenance: Stainless steel equipment",
        "unit": "kg",
        "year": 2026
      },
      {
        "amount": 3.05614,
        "background": "desnz-ghg-2026:lorry-hgv-gb",
        "baseline": "factor:desnz-ghg-2026:lorry-hgv-gb",
        "key": "transport:construction-to-site",
        "location": "GB",
        "note": "UK average non-refrigerated HGV, average laden, incl. WTT",
        "phase": "construction",
        "replaced": false,
        "scope": {
          "gases": "co2e",
          "gwp": "AR4/AR5"
        },
        "source_id": "desnz-ghg-2026",
        "state": "proxy",
        "status": "PROXY",
        "title": "Transport (500 km)",
        "unit": "tkm",
        "year": 2026
      },
      {
        "amount": 1.98436,
        "background": "desnz-ghg-2026:lorry-hgv-gb",
        "baseline": "factor:desnz-ghg-2026:lorry-hgv-gb",
        "key": "transport:consumables-to-site",
        "location": "GB",
        "note": "UK average non-refrigerated HGV, average laden, incl. WTT",
        "phase": "transport",
        "replaced": false,
        "scope": {
          "gases": "co2e",
          "gwp": "AR4/AR5"
        },
        "source_id": "desnz-ghg-2026",
        "state": "proxy",
        "status": "PROXY",
        "title": "Transport (800 km)",
        "unit": "tkm",
        "year": 2026
      },
      {
        "amount": 6.19595,
        "background": null,
        "baseline": "missing: no open recycling credit: the DESNZ material factors are not suitable for recycling benefits (methodology 12.1)",
        "gaps": [
          "climate-change"
        ],
        "key": "end-of-life:steel-recycling",
        "location": null,
        "note": "no open recycling credit: the DESNZ material factors are not suitable for recycling benefits (methodology 12.1)",
        "phase": "end-of-life",
        "replaced": false,
        "scope": null,
        "source_id": null,
        "state": "missing",
        "status": null,
        "title": "End of life: steel-recycling",
        "unit": "kg",
        "year": null
      },
      {
        "amount": 0.680357,
        "background": null,
        "baseline": "missing: no open recycling credit: the DESNZ material factors are not suitable for recycling benefits (methodology 12.1)",
        "gaps": [
          "climate-change"
        ],
        "key": "end-of-life:aluminium-recycling",
        "location": null,
        "note": "no open recycling credit: the DESNZ material factors are not suitable for recycling benefits (methodology 12.1)",
        "phase": "end-of-life",
        "replaced": false,
        "scope": null,
        "source_id": null,
        "state": "missing",
        "status": null,
        "title": "End of life: aluminium-recycling",
        "unit": "kg",
        "year": null
      }
    ],
    "layer": "linked-inventory"
  },
  "notes": [],
  "process": {
    "dataset": "asu-1-500-t-d-gox",
    "technology": "cryogenic double-column air separation, 500 t/d GOX, pumped liquid products, TSA front end",
    "title": "ASU-1 (500 t/d GOX)"
  },
  "publication": {
    "policy": "public",
    "publishable": true,
    "restricted_by": []
  },
  "scenario": {
    "electricity": null,
    "id": "baseline",
    "kind": "baseline",
    "location": null,
    "missing": {},
    "proxy": {},
    "replaces": {},
    "source": null,
    "title": null,
    "year": 2026
  },
  "schema": "cheme/lca-scenario/v1",
  "warnings": [
    {
      "file": "lca/lca.yaml",
      "level": "warning",
      "message": "1 equipment items have no dimensions.weight: gaps of their construction entry, not counted as 0: E-3103",
      "rule": "cheme.lca-equipment-weight"
    },
    {
      "file": "lca/lca.yaml",
      "level": "warning",
      "message": "consumable molecular-sieve is replaced or charged, but has no disposal: what goes in does not come out",
      "rule": "cheme.lca-disposal"
    },
    {
      "file": "lca/lca.yaml",
      "level": "warning",
      "message": "emission sources the flowsheet does not carry, with neither an estimate nor a declared exclusion: V-3101 (a Tank: storage-tank), T-4101 (a Tank: storage-tank), T-4102 (a Tank: storage-tank)",
      "rule": "cheme.lci-emissions-incomplete"
    },
    {
      "file": "process/flowsheet.yaml",
      "level": "warning",
      "message": "product GOXP (GOX to pipeline) has no category: the TEA and LCA cannot tell a product from wastewater, off-gas, solid waste or an emission",
      "rule": "cheme.boundary-unclassified"
    },
    {
      "file": "process/flowsheet.yaml",
      "level": "warning",
      "message": "product GANP (GAN to battery limit) has no category: the TEA and LCA cannot tell a product from wastewater, off-gas, solid waste or an emission",
      "rule": "cheme.boundary-unclassified"
    },
    {
      "file": "process/flowsheet.yaml",
      "level": "warning",
      "message": "product LOX (LOX to storage) has no category: the TEA and LCA cannot tell a product from wastewater, off-gas, solid waste or an emission",
      "rule": "cheme.boundary-unclassified"
    },
    {
      "file": "process/flowsheet.yaml",
      "level": "warning",
      "message": "product LIN (LIN to storage) has no category: the TEA and LCA cannot tell a product from wastewater, off-gas, solid waste or an emission",
      "rule": "cheme.boundary-unclassified"
    },
    {
      "file": "process/flowsheet.yaml",
      "level": "warning",
      "message": "product VENT (Vent to atmosphere) has no category: the TEA and LCA cannot tell a product from wastewater, off-gas, solid waste or an emission",
      "rule": "cheme.boundary-unclassified"
    },
    {
      "file": "process/flowsheet.yaml",
      "level": "warning",
      "message": "product COND (Condensate (MAC cooler drains; DCAC condensate into its circulating water)) has no category: the TEA and LCA cannot tell a product from wastewater, off-gas, solid waste or an emission",
      "rule": "cheme.boundary-unclassified"
    },
    {
      "file": "process/flowsheet.yaml",
      "level": "warning",
      "message": "product CW (Cooling water return (heat rejected)) has no category: the TEA and LCA cannot tell a product from wastewater, off-gas, solid waste or an emission",
      "rule": "cheme.boundary-unclassified"
    },
    {
      "file": "process/flowsheet.yaml",
      "level": "warning",
      "message": "step C1101U (Cooling) exchanges heat or work but no energy stream connects it to a utility: its steam, cooling, refrigeration or power is in no inventory",
      "rule": "cheme.boundary-utility-unassigned"
    },
    {
      "file": "process/flowsheet.yaml",
      "level": "warning",
      "message": "step C1102 (Cooling) exchanges heat or work but no energy stream connects it to a utility: its steam, cooling, refrigeration or power is in no inventory",
      "rule": "cheme.boundary-utility-unassigned"
    },
    {
      "file": "process/flowsheet.yaml",
      "level": "warning",
      "message": "step K3101 (Compressing) exchanges heat or work but no energy stream connects it to a utility: its steam, cooling, refrigeration or power is in no inventory",
      "rule": "cheme.boundary-utility-unassigned"
    },
    {
      "file": "process/flowsheet.yaml",
      "level": "warning",
      "message": "step E3105 (Cooling) exchanges heat or work but no energy stream connects it to a utility: its steam, cooling, refrigeration or power is in no inventory",
      "rule": "cheme.boundary-utility-unassigned"
    },
    {
      "file": "process/flowsheet.yaml",
      "level": "warning",
      "message": "step C3101 (Distilling) exchanges heat or work but no energy stream connects it to a utility: its steam, cooling, refrigeration or power is in no inventory",
      "rule": "cheme.boundary-utility-unassigned"
    },
    {
      "file": "process/flowsheet.yaml",
      "level": "warning",
      "message": "step HL3101 (ExchangingThermalEnergy) exchanges heat or work but no energy stream connects it to a utility: its steam, cooling, refrigeration or power is in no inventory",
      "rule": "cheme.boundary-utility-unassigned"
    },
    {
      "file": "process/flowsheet.yaml",
      "level": "warning",
      "message": "step C3102 (Distilling) exchanges heat or work but no energy stream connects it to a utility: its steam, cooling, refrigeration or power is in no inventory",
      "rule": "cheme.boundary-utility-unassigned"
    }
  ]
}