{
  "authors": [],
  "basis": {
    "capacity": "per tonne of conditioned CO2 (the dataset's basis); the source's case is 55.5 t/h"
  },
  "benchmarks": [
    {
      "dataset": "co2-conditioning-ammonia-stripper-vent",
      "expression": "resource:water / product:CO2",
      "family": "carbon-capture",
      "kpi": "co2-conditioning-cooling-water-makeup",
      "no_open_reference": "No open source independent of the dataset found (2026-11-05). The only figures read are NETL (2023), DOE/NETL-2023/3907, Exhibits 5-7 and 5-26: water consumable of the ammonia case (46,000 gal/d, 130.8 kg/t, the dataset itself) and the ethanol case (17,000 gal/d, 164.2 kg/t). They are the dataset's own source, so they are kept only as its uncertainty spread and not as a check. Read without a per-tonne make-up figure: McCollum and Ogden (2006) UCD-ITS-RR-06-14 (no cooling water), IPCC SRCCS (2005) ch. 3; a web search for open make-up water figures of CO2 compression intercooling found none stated per t of CO2.",
      "problem": "1 to kg/t needs core's foundation.units (pip install 'cheme-as-code[units]')",
      "reference": null,
      "status": "unchecked",
      "title": "Cooling-water make-up per t of CO2 conditioned",
      "unit": "kg/t",
      "value": null
    },
    {
      "dataset": "co2-conditioning-ammonia-stripper-vent",
      "expression": "feed:electricity / product:CO2",
      "family": "carbon-capture",
      "kpi": "co2-conditioning-specific-electricity",
      "no_open_reference": "No open source found (2026-11-05) that states a per-tonne electricity for compressing (and drying) high-purity CO2 to pipeline pressure independently of the dataset. Read: McCollum, D.L., Ogden, J.M. (2006) UCD-ITS-RR-06-14, section 'Calculation of Compressor & Pump Power Requirements', pp. 2-4, which prints the compressor and pump power equations and a figure of power against flow, but no per-tonne value. Evaluated by us with the parameter values it states (five stages from 0.1 to 7.38 MPa with their Z and k, inlet 40 degC, isentropic efficiency 0.75; pump from 7.38 to 15 MPa, 630 kg/m3, efficiency 0.75), it gives 100.4 kWh/t compression plus 4.5 kWh/t pumping, 104.8 kWh/t, without cooling-water power or drying. That is our own model evaluation, so it is not recorded as a range. NETL (2023) DOE/NETL-2023/3907 gives 105.6 kWh/t (ammonia, Exhibits 5-3 and 5-4: 5,860 kW over 55,488 kg/h) and 112.7 kWh/t (ethanol, Exhibits 5-22 and 5-23: 1,840 kW over 16,329 kg/h), divided by us; it is the dataset's own source, so it is not a check either. Both are kept as the dataset's uncertainty spread.",
      "problem": "kWh/kg to kWh/t needs core's foundation.units (pip install 'cheme-as-code[units]')",
      "reference": null,
      "status": "unchecked",
      "title": "Electricity per t of CO2 compressed (and dried) to pipeline pressure",
      "unit": "kWh/t",
      "value": null
    }
  ],
  "chemistry": {
    "inputs": [
      {
        "chemical": "carbon-dioxide",
        "grade": null,
        "inventory_key": "feed:CO2-raw",
        "note": "wet CO2 stripper (regenerator) vent of a natural-gas ammonia plant, 97.09 mol% CO2, 0.16 MPa; zero burden from the source plant (system-model section 2, step 4); fossil carbon",
        "role": "feedstock"
      },
      {
        "chemical": "triethylene-glycol",
        "grade": null,
        "inventory_key": "input:TEG",
        "note": "make-up of the TEG dryer, linked to ethylene-glycol-1 (lca/mappings.yaml)",
        "role": "feedstock"
      },
      {
        "chemical": "water",
        "grade": null,
        "inventory_key": "resource:water",
        "note": "cooling-tower make-up of the compressor coolers, withdrawn from nature",
        "role": "feedstock"
      }
    ],
    "outputs": [
      {
        "chemical": "carbon-dioxide",
        "grade": "dense-153bara-99.95",
        "inventory_key": "product:CO2",
        "note": "dense phase, 15.3 MPa and 30 degC, 99.95 mol% CO2 (500 ppm water), EOR pipeline quality",
        "role": "main-product"
      },
      {
        "chemical": "wastewater",
        "grade": null,
        "inventory_key": "output:condensate",
        "note": "water knocked out of the raw gas and removed by the dryer",
        "role": "waste"
      },
      {
        "chemical": "wastewater",
        "grade": null,
        "inventory_key": "output:blowdown",
        "note": "cooling-tower blowdown (ASSUMED 4 cycles of concentration)",
        "role": "waste"
      },
      {
        "chemical": "water",
        "grade": null,
        "inventory_key": "emission:H2O-evaporation",
        "note": "cooling-tower evaporation",
        "role": "emission"
      }
    ],
    "utilities": [
      {
        "chemical": "electricity",
        "grade": null,
        "inventory_key": "feed:electricity",
        "note": "reciprocating CO2 compressor, circulating-water pumps and cooling-tower fans",
        "role": "utility"
      }
    ]
  },
  "description": "",
  "design_basis": null,
  "engineering": null,
  "facets": {
    "feedstock_basis": [
      "fossil"
    ],
    "product_classes": [
      "industrial-gases"
    ],
    "region": "US",
    "unit_operations": [
      "compression",
      "absorption"
    ]
  },
  "families": [
    "carbon-capture"
  ],
  "gap_count": 2,
  "gates": null,
  "id": "carbon-capture-1",
  "issues": {
    "closed_count": 0,
    "list_url": "https://github.com/ChemE-as-Code/process-library/issues?q=is%3Aissue%20label%3A%22process%3Acarbon-capture-1%22",
    "new": {
      "action": "https://github.com/ChemE-as-Code/process-library/issues/new?template=1-action-item.yml&labels=process%3Acarbon-capture-1&process=carbon-capture-1",
      "change": "https://github.com/ChemE-as-Code/process-library/issues/new?template=4-design-change.yml&labels=process%3Acarbon-capture-1&process=carbon-capture-1",
      "hold": "https://github.com/ChemE-as-Code/process-library/issues/new?template=2-engineering-hold.yml&labels=process%3Acarbon-capture-1&process=carbon-capture-1",
      "process": "https://github.com/ChemE-as-Code/process-library/issues/new?template=6-process-development.yml&labels=process%3Acarbon-capture-1&process=carbon-capture-1",
      "tq": "https://github.com/ChemE-as-Code/process-library/issues/new?template=3-technical-query.yml&labels=process%3Acarbon-capture-1&process=carbon-capture-1",
      "tracker": "https://github.com/ChemE-as-Code/process-library/issues/new?template=7-process-tracker.yml&labels=process%3Acarbon-capture-1&process=carbon-capture-1"
    },
    "open": [],
    "open_by_gate": {},
    "open_count": 0,
    "private": false,
    "repository": "ChemE-as-Code/process-library"
  },
  "keywords": [
    "CO2 capture",
    "CO2 conditioning",
    "CO2 compression",
    "dehydration",
    "triethylene glycol",
    "high-purity CO2",
    "ammonia",
    "CCUS"
  ],
  "lca": null,
  "lci_gaps": [
    {
      "dataset": "co2-conditioning-ammonia-stripper-vent",
      "key": "feed:CO2-raw",
      "link": "technosphere",
      "type": "input"
    },
    {
      "dataset": "co2-conditioning-ammonia-stripper-vent",
      "key": "output:spent-TEG",
      "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": [
    {
      "title": "Hughes, S., Zoelle, A. (2023) Cost of Capturing CO2 from Industrial Sources. National Energy Technology Laboratory, DOE/NETL-2023/3907, section 5.1 (ammonia) and 5.3 (ethanol)",
      "url": "https://www.osti.gov/servlets/purl/2007619"
    },
    {
      "title": "IPCC (2006) 2006 IPCC Guidelines for National Greenhouse Gas Inventories, Volume 3, Chapter 3 Chemical Industry Emissions, section 3.2 (ammonia: CO2 regenerator, CO2 recovered for downstream use, Boxes 3.1 to 3.3)",
      "url": "https://www.ipcc-nggip.iges.or.jp/public/2006gl/pdf/3_Volume3/V3_3_Ch3_Chemical_Industry.pdf"
    },
    {
      "title": "IPCC (2006) 2006 IPCC Guidelines for National Greenhouse Gas Inventories, Volume 2, Chapter 5 Carbon Dioxide Transport, Injection and Geological Storage, section 5.3 (capture boundary)",
      "url": "https://www.ipcc-nggip.iges.or.jp/public/2006gl/pdf/2_Volume2/V2_5_Ch5_CCS.pdf"
    },
    {
      "title": "McCollum, D.L., Ogden, J.M. (2006) Techno-economic models for carbon dioxide compression, transport, and storage. Institute of Transportation Studies, University of California, Davis, UCD-ITS-RR-06-14 (benchmark note and uncertainty spread only: our evaluation of its compression model)",
      "url": "https://itspubs.ucdavis.edu/publication_detail.php?id=1047"
    }
  ],
  "repository": {
    "access": "public",
    "path": "processes/carbon-capture-1",
    "url": "https://github.com/ChemE-as-Code/process-library"
  },
  "representations": [],
  "summary": "Sourced conceptual inventory per tonne of dense-phase CO2 at 15.3 MPa: the wet stripper-vent gas of an ammonia plant is compressed, dried with triethylene glycol and cooled, after the US NETL study of industrial capture (2023). No flowsheet; not reviewed.",
  "title": "CO2 conditioning of a high-purity source (ammonia CO2 stripper vent), compression and TEG drying",
  "validation": {
    "status": "unreviewed"
  },
  "viewer": null
}