Sales gas to transmission pipeline (7000 kPa(a))

Activity Natural gas processing (amine CO2 removal, TEG dehydration, turbo-expander NGL recovery), US: the inventory of 1 kilogram of its reference product, attributional, cut-off.

Calculation maturity: not assessed Design maturity: Concept (research)Not independently reviewednatural-gas-processing-1:natural-gas-processing-100-mmscf-d-rich-shale-gas-to-sales-gas-and-c2-ngl:product:SALESGASPreliminaryReport a problem with this dataset

Research outputAn inventory from a research design at the design maturity its process states, not verified plant data: check its calculation maturity and review status before use. Background activities are referenced by name only; no background data is included. All caveats

What it is

Unallocated foreground LCI of Natural gas processing (100 MMscf/d rich shale gas to sales gas and C2+ NGL), case design, derived from the flowsheet by cheme assess lca.

Reference product: 1 kilogram of Sales gas to transmission pipeline (7000 kPa(a)) (70 bar(a), 40 degC, 94.0507 % CH4 (mass))
CAS: not available
Code: natural-gas-processing-1:natural-gas-processing-100-mmscf-d-rich-shale-gas-to-sales-gas-and-c2-ngl:product:SALESGAS
Dataset: natural-gas-processing-100-mmscf-d-rich-shale-gas-to-sales-gas-and-c2-ngl version 0.1.0 · UUID 05bf4326-7837-5bf0-bc4e-744759841981
Activity UUID: not available (the library assigns none; use the code)
Database: cheme-as-code-atlas-preview-c3ab348 (version preview-c3ab348)
Process: Natural gas processing (amine CO2 removal, TEG dehydration, turbo-expander NGL recovery)
Geography: US · background inputs with a site rule link at the user's site location (default DE)
Time period: 2026 · valid until 2031
Technology: Sweet gas plant: inlet separation, MDEA CO2 removal (acid gas vented), TEG dehydration with molecular sieve polishing, GSP-type turbo-expander NGL recovery (90 % C2, 98 % C3), electric-motor residue compression; 100 MMscf/d (about 0.8 Mt/a) of Barnett-type rich shale gas · level current
Boundary: gate-to-gate foreground of the plant
Production volume: 549,675,680 kg/a (product:SALESGAS per hour x operation.hours_per_year (8000 h/a))
Classification: ISIC Rev.4 1920, 2011 (taxonomy/families.yaml (ISIC Rev.4) of the process's families)
System model: attributional, cut-off (docs/system-model.md, methodology 1.1.0)
Allocation: energy, 72.2 % of the dataset to this product (rule deviation, from study)
Hierarchy step 3 (WBCSD price ratio) cannot be applied: no sourced prices of sales gas and NGL are recorded for this concept design. Energy (LHV) is used because both co-products are fuels and feedstocks traded on their energy content, the physical relationship between them; mass would give nearly the same split since their LHVs differ by 3 % (D-014). To be revisited when open price data are sourced.
Rights: CC-BY-4.0: the ChemE-as-Code process library's own concept design (LICENSE-DATA)

Exchanges per 1 kilogram of Sales gas to transmission pipeline (7000 kPa(a))

As exported: allocated and scaled to the reference product. Provenance: 2 given, 14 assumed, 5 estimated. Pedigree scores (1 best, 5 worst): reliability, completeness, temporal correlation, geographical correlation, further technological correlation.

Preliminary7 exchanges are not yet linked to a background dataset. They count no burden, so the inventory is incomplete: do not read a result from it as complete.

Input	Amount	Unit	Provenance	Pedigree	Linked to
Raw natural gas from field gathering (water-saturated, with free water) feed:RAWGAS S1, D-003, D-004 From stream S1	1.025	kilogram	given	3 4 1 1 3	unlinked unlinked, no technosphere mapping: no mapping (no chemical slug or factor id); add it to lci/mappings.yaml technosphere or to the process's lca/mappings.yaml exchanges
Demineralised make-up water (amine loop) feed:DMW S8, D-007 From stream S8	6.394e-4	kilogram	given	3 4 1 1 3	market for water, deionised (water, deionised, RoW) in your background (default ecoinvent-3.11-cutoff)
LP steam 450 kPa(a) from the site steam system (amine reboiler) feed:STEAM Q1, D-007 steam, LP, 147.65 degC, 4.5 bar(a) From stream Q1	0.01133	kilowatt hour	assumed	4 4 1 1 3	Atlas: heat from steam, per kWh (Atlas unit proxy) (heat from steam, by energy, GLO)
Electric power (AC, grid) feed:POWER Q3, Q5, Q9, Q10, Q12; D-010 electricity From streams Q3, Q5, Q9, Q10, Q12	0.04188	kilowatt hour	assumed	4 4 1 1 3	market for electricity, medium voltage (electricity, medium voltage, DE, site location) in your background (default ecoinvent-3.11-cutoff)
Produced and separated water to disposal product:PWATER S3, S18; D-004 From streams S3, S18	0.007098	kilogram	assumed	4 4 1 1 3	unlinked unlinked, no technosphere mapping: no mapping (no chemical slug or factor id); add it to lci/mappings.yaml technosphere or to the process's lca/mappings.yaml exchanges
Cooling water return product:CW Q2, Q7, Q11; D-010 cold, 30 degC From streams Q2, Q7, Q11	0.07197	kilowatt hour	assumed	4 4 1 1 3	Atlas (plant): cooling water service, per kWh heat rejected (Atlas screening proxy) (heat rejected to cooling water, GLO) compatible: grade the input names cooling-water only; cooling-water (Heat rejected to cooling water, 25/35 degC) is taken; unit kilowatt hour; carrier cold, 30 degC from cold, 25 degC; system model cutoff (one database); allocation mass (single-output); boundary plant gate of a site utility: no utility market yet (docs/markets.md)
MDEA make-up (losses by vaporisation, entrainment, degradation) consumable:MDEA ASSUMED (D-007): of order 1 lb amine per MMscf treated, a practitioner rule of thumb; no open source found; 100 MMscf/d x 8000/24 d	1.97e-5	kilogram	assumed	4 4 1 1 3	unlinked unlinked, no technosphere mapping: no mapping (no chemical slug or factor id); add it to lci/mappings.yaml technosphere or to the process's lca/mappings.yaml exchanges
Disposal: MDEA make-up (losses by vaporisation, entrainment, degradation) (amine reclaimer residue and degradation products to hazardous waste incineration) disposal:consumable.MDEA ASSUMED (D-007): what is lost leaves as waste or traces in the gas	1.97e-5	kilogram	assumed	4 4 1 1 3	unlinked unlinked, no technosphere mapping: no mapping (no chemical slug or factor id); add it to lci/mappings.yaml technosphere or to the process's lca/mappings.yaml exchanges
TEG make-up (vaporisation and carry-over losses) consumable:TEG ASSUMED (D-008): of order 0.1 US gal TEG per MMscf dried, a practitioner rule of thumb; no open source found	1.839e-5	kilogram	assumed	4 4 1 1 3	unlinked unlinked, no technosphere mapping: no mapping (no chemical slug or factor id); add it to lci/mappings.yaml technosphere or to the process's lca/mappings.yaml exchanges
Disposal: TEG make-up (vaporisation and carry-over losses) (spent glycol and filter residue to incineration) disposal:consumable.TEG ASSUMED (D-008)	1.839e-5	kilogram	assumed	4 4 1 1 3	unlinked unlinked, no technosphere mapping: no mapping (no chemical slug or factor id); add it to lci/mappings.yaml technosphere or to the process's lca/mappings.yaml exchanges
Molecular sieve adsorbent (zeolite 4A), replaced every 4 years consumable:MOLSIEVE ASSUMED (D-008): two beds of about 20 t; no sizing at concept stage	1.313e-5	kilogram	assumed	4 4 1 1 3	market for zeolite, powder (zeolite, powder, GLO) in your background (default ecoinvent-3.11-cutoff)
Disposal: Molecular sieve adsorbent (zeolite 4A), replaced every 4 years (spent zeolite to landfill (non-hazardous for sweet gas)) disposal:consumable.MOLSIEVE ASSUMED (D-008)	1.313e-5	kilogram	assumed	4 4 1 1 3	market for inert waste, for final disposal (inert waste, for final disposal, RoW) in your background (default ecoinvent-3.11-cutoff)

Elementary flows

Flow	Direction	Compartment	Amount	Unit	Provenance	Pedigree
Ethane 8e30c990-5ed4-4f94-9d0e-2f5e4ff1a1f9 From streams S10, S16, S34	emission	air	8.721e-6	kilogram	assumed	4 4 1 1 3
Propane 3a6c936c-0276-4f11-9d98-1bd011387a6e From streams S10, S16, S34	emission	air	5.636e-6	kilogram	assumed	4 4 1 1 3
Methane, fossil 0795345f-c7ae-410c-ad25-1845784c75f5 From streams S10, S16, S34, S32	emission	air	3.207e-5	kilogram	assumed	4 4 1 1 3
Carbon dioxide, fossil 349b29d1-3e58-4c66-98b9-9d1a076efd2e From streams S10, S16, S34	emission	air	0.009511	kilogram	assumed	4 4 1 1 3
Nitrogen oxides 77357947-ccc5-438e-9996-95e65e1e1bce From stream S32	emission	air / non-urban air or from high stacks	2.266e-6	kilogram	estimated	3 4 3 1 3
Carbon monoxide, fossil 099b36ab-4c03-4587-87f4-2f81e337afb8 From stream S32	emission	air / non-urban air or from high stacks	1.904e-6	kilogram	estimated	3 4 3 1 3
Dinitrogen monoxide afd6d670-bbb0-4625-9730-04088a5b035e From stream S32	emission	air / non-urban air or from high stacks	4.984e-8	kilogram	estimated	3 4 3 1 3
PM to the environment (estimated) emission:PM unlinked unlinked, no biosphere mapping: emission of PM (fossil) has no biosphere3 flow identity and is not in lci/mappings.yaml biosphere From stream S32	emission	not linked	1.722e-7	kilogram	estimated	3 4 3 1 3
NMVOC, non-methane volatile organic compounds d3260d0e-8203-4cbb-a45a-6a13131a5108 From stream S32	emission	air	1.246e-7	kilogram	estimated	3 4 3 1 3

The streams are the plant's own flows: an amount here is allocated and per 1 kilogram of Sales gas to transmission pipeline (7000 kPa(a)), so it differs from the stream's flow, and it can sum several streams.

Where these numbers come from: each exchange names its source above; the dataset is processes/natural-gas-processing-1/lca/dataset.yaml in library version c3ab348.

Used by

No other activity of this database links to it.

How good it is

Review

Not reviewed: no LCI review record yet

Data quality

DQR 1.67 · PEF-style DQR 2.25

TeR 3 · GeR 1 · TiR 1.0026 · P 4 · C 4 · weakest TeR · primary data 0 %

Mass and carbon closure

Assessed (lca/manifest.json balance, tolerance 5 %: design maturity concept (sourced screening))

lci-carbon-origin: not-assessable
lci-element-balance: not-assessable
lci-mass-balance: closed

element balance not assessable: no composition for consumable:MDEA (no composition), disposal:consumable.MDEA (no composition), consumable:TEG (no composition), disposal:consumable.TEG (no composition), consumable:MOLSIEVE (no composition), disposal:consumable.MOLSIEVE (no composition)
carbon balance not assessable: no composition for consumable:MDEA (no composition), disposal:consumable.MDEA (no composition), consumable:TEG (no composition), disposal:consumable.TEG (no composition), consumable:MOLSIEVE (no composition), disposal:consumable.MOLSIEVE (no composition)

Change report

Not available: this build has no change report against an earlier release.

KPI benchmark positions

Not available: no benchmarked KPI for this dataset.

How to use it

Downloads

cheme-as-code-atlas-preview-c3ab348.xlsx · bw2io ExcelImporter workbook (bw2io 0.9 Excel layout) · the whole database
code natural-gas-processing-1:natural-gas-processing-100-mmscf-d-rich-shale-gas-to-sales-gas-and-c2-ngl:product:SALESGAS
cheme-as-code-atlas-preview-c3ab348-olca-jsonld.zip · openLCA JSON-LD (olca-schema) (2) · the whole database
process 05bf4326-7837-5bf0-bc4e-744759841981 (processes/05bf4326-7837-5bf0-bc4e-744759841981.json) · the dataset's unallocated multi-output process; this product's allocation factor is in it
cheme-as-code-atlas-preview-c3ab348-multifunctional.json · Brightway 2.5 multifunctional database (JSON, for the multifunctional package) (cheme-as-code/lci-multifunctional/v1) · the whole database
code natural-gas-processing-1:natural-gas-processing-100-mmscf-d-rich-shale-gas-to-sales-gas-and-c2-ngl · the dataset unallocated, with all its products; this product is its desired_code
cheme_as_code_lci-0.1.0-py3-none-any.whl · the installer

A file with this activity alone is not available: each file above is the whole database, and the line under it says how to find this activity there.

import bw2data as bd
from cheme_as_code_lci import install

bd.projects.set_current("my-project")   # holds your licensed background + biosphere3
install("cheme-as-code-atlas-preview-c3ab348.xlsx", background="ecoinvent-3.11-cutoff", location="DE")
activity = bd.get_activity(("cheme-as-code-atlas-preview-c3ab348", "natural-gas-processing-1:natural-gas-processing-100-mmscf-d-rich-shale-gas-to-sales-gas-and-c2-ngl:product:SALESGAS"))

While any exchange of the database has no mapping, install() writes nothing and only lists the unlinked exchanges. So the last line finds no activity until the gaps are mapped: the download section gives the ways to use the database now.

How to cite

Sales gas to transmission pipeline (7000 kPa(a)), from Natural gas processing (amine CO2 removal, TEG dehydration, turbo-expander NGL recovery) (dataset natural-gas-processing-100-mmscf-d-rich-shale-gas-to-sales-gas-and-c2-ngl 0.1.0), ChemE-as-Code Process Atlas LCI database preview-c3ab348, activity natural-gas-processing-1:natural-gas-processing-100-mmscf-d-rich-shale-gas-to-sales-gas-and-c2-ngl:product:SALESGAS. Cite the Process Atlas paper (in preparation, 2026), by Artur M. Schweidtmann and Jana M. Weber, and the ChemE-as-Code Process Atlas LCI database version preview-c3ab348.

DOI: none yet (the Process Atlas paper is in preparation)

For the data, cite the Process Atlas paper; for the platform that builds and checks it, the ChemE-as-Code paper.

Schweidtmann, A. M. & Weber, J. M. (2026, in preparation). Process Atlas: an open, git-native, reproducible library and life cycle inventory of chemical processes (working title).

BibTeX

@unpublished{schweidtmann_process_atlas,
  author = {Schweidtmann, Artur M. and Weber, Jana M.},
  title = {{Process Atlas: an open, git-native, reproducible library and life cycle inventory of chemical processes (working title)}},
  year = {2026},
  url = {https://atlas.cheme-as-code.org},
  note = {in preparation}
}

Schweidtmann, A. M. (2026, in preparation). ChemE-as-Code: An Open-Source Platform for AI-Accelerated Chemical Process Engineering (working title).

BibTeX

@unpublished{schweidtmann_cheme_as_code,
  author = {Schweidtmann, Artur M.},
  title = {{ChemE-as-Code: An Open-Source Platform for AI-Accelerated Chemical Process Engineering (working title)}},
  year = {2026},
  url = {https://cheme-as-code.org},
  note = {in preparation}
}