Acetaldehyde 99.9 wt% to storage

Activity Acetaldehyde by the one-stage Wacker oxidation of ethylene (100 kt/a), GLO: the inventory of 1 kilogram of its reference product, attributional, cut-off.

Calculation maturity: not assessed Design maturity: Concept (research)Not independently reviewedacetaldehyde-1:acetaldehyde-one-stage-wacker-oxidation-of-ethylene-100-kt-a:product:PRODPreliminaryReport 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 Acetaldehyde, one-stage Wacker oxidation of ethylene (100 kt/a), case design, derived from the flowsheet by cheme assess lca.

Reference product
1 kilogram of Acetaldehyde 99.9 wt% to storage (3 bar(a), 30 degC, 99.9 % ACH (mass))
Chemical
acetaldehyde
CAS
75-07-0
Code
acetaldehyde-1:acetaldehyde-one-stage-wacker-oxidation-of-ethylene-100-kt-a:product:PROD
Dataset
acetaldehyde-one-stage-wacker-oxidation-of-ethylene-100-kt-a version 0.1.0 · UUID 9dd7c74d-6e11-5d05-b83c-86edda7bd79a
Activity UUID
not available (the library assigns none; use the code)
Database
cheme-as-code-atlas-preview-c3ab348 (version preview-c3ab348)
Process
Acetaldehyde by the one-stage Wacker oxidation of ethylene (100 kt/a)
Geography
GLO · background inputs with a site rule link at the user's site location (default DE)
Time period
2026 · valid until 2031
Technology
one-stage Wacker (Hoechst-Wacker) process: ethylene and 99.5 % oxygen in aqueous PdCl2/CuCl2, boiling bubble-column reactor with cycle gas and purge, water scrubbing, extractive light-ends column and acetaldehyde column with live steam; 100 kt/a · level current
Boundary
gate-to-gate foreground of the plant
Production volume
100,000,000 kg/a (product:PROD per hour x operation.hours_per_year (8000 h/a))
Classification
ISIC Rev.4 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
mass, 100 % of the dataset to this product (rule single-output, from default)
one product: nothing to allocate
Rights
CC-BY-4.0: the ChemE-as-Code process library's own concept design (LICENSE-DATA)

Exchanges per 1 kilogram of Acetaldehyde 99.9 wt% to storage

As exported: allocated and scaled to the reference product. Provenance: 11 assumed, 2 calculated. Pedigree scores (1 best, 5 worst): reliability, completeness, temporal correlation, geographical correlation, further technological correlation.

Preliminary4 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.
InputAmountUnitProvenancePedigreeLinked to
Ethylene, polymer grade (boundary feed; e.g. a steam cracker)
feed:ETH
stream S01, 676.5 kg C2H4/t product (D-003, D-004)
From stream S01
0.6765kilogramassumed4 4 1 3 3Atlas (pinned): Ethylene and propylene by ethane steam cracking (1000 kt/a ethylene, concept) (Polymer-grade ethylene, GLO)
compatible: grade the input names no chemical only; ethylene (Polymer-grade ethylene) is taken; unit kilogram; system model cutoff (one database); allocation mass (deviation); boundary plant gate (pinned): no distribution or losses; the consumer's dataset counts its delivery
Oxygen 99.5 mol% (boundary feed; e.g. from asu-1)
feed:OXY
stream S03, 409.6 kg/t (D-003, D-007)
From stream S03
0.4096kilogramassumed4 4 1 3 3unlinked
unlinked, no technosphere mapping: no mapping (chemical 'oxygen'); add it to lci/mappings.yaml technosphere or to the process's lca/mappings.yaml exchanges
Hydrochloric acid 30 wt% (catalyst make-up)
feed:HCLA
stream S04, 54.2 kg/t of 30 wt% acid, replaces the chlorine leaving in the chlorinated by-products (D-004)
From stream S04
0.05416kilogramassumed4 4 1 3 3Atlas: hydrochloric acid, 30 wt-% in water, per kg of solution (Atlas unit proxy) (hydrochloric acid, 30 wt-%, GLO)
Demineralised water
feed:DEMIN
streams S05 and S23: reactor make-up and extraction water, scaled from US 4,237,073 (D-006)
From streams S05, S23
1.269kilogramassumed4 4 1 3 3market for water, deionised (water, deionised, RoW) in your background (default ecoinvent-3.11-cutoff)
Process water to the scrubber
feed:PW
stream S14: scrubber wash water, scaled from US 4,237,073 (D-006, D-007)
From stream S14
5.962kilogramassumed4 4 1 3 3market for water, deionised (water, deionised, RoW) in your background (default ecoinvent-3.11-cutoff)
MP steam 1000 kPa(a), direct (catalyst regenerator)
feed:MPS
stream S06, 0.115 t/t, scaled from US 4,237,073 (D-006)
From stream S06
0.1154kilogramassumed4 4 1 3 3Atlas: steam, saturated, 11 bar(a), per kg, as heat from steam (Atlas unit proxy) (steam, saturated, 11 bar(a), GLO)
LP steam 450 kPa(a), direct (live steam to the columns)
feed:LPS
streams S24 and S27: live steam to C-201 and C-202, 1.31 t/t, scaled from US 4,237,073 (D-006, D-008)
From streams S24, S27
1.308kilogramassumed4 4 1 3 3Atlas: steam, saturated, 11 bar(a), per kg, as heat from steam (Atlas unit proxy) (steam, saturated, 11 bar(a), GLO)
Electric power
feed:POWER
streams Q01-Q04: cycle-gas compressor and pumps, 42.8 kWh/t (D-009)
electricity
From streams Q01, Q02, Q03, Q04
0.04277kilowatt hourassumed4 4 1 3 3market for electricity, medium voltage (electricity, medium voltage, DE, site location) in your background (default ecoinvent-3.11-cutoff)
Cycle-gas purge to the thermal oxidiser
product:PURGE
stream S18, 19.8 kg/t (D-007)
From stream S18
0.0198kilogramcalculated3 4 1 3 3unlinked
unlinked, no technosphere mapping: no mapping (chemical 'carbon-dioxide'); add it to lci/mappings.yaml technosphere or to the process's lca/mappings.yaml exchanges
Light ends to the thermal oxidiser
product:LIGHTS
stream S25, 16.4 kg/t (D-008)
From stream S25
0.01636kilogramassumed4 4 1 3 3unlinked
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
Crotonaldehyde and chlorinated aldehyde side draw to incineration
product:HEAVY
stream S30, 71.3 kg/t (D-008)
From stream S30
0.0713kilogramassumed4 4 1 3 3unlinked
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
Waste water to biological treatment
product:WW
stream S33: acetaldehyde column bottoms, 8.69 t/t (D-008)
From stream S33
8.687kilogramcalculated3 4 1 3 3Atlas (plant): wastewater to treatment, per kg (Atlas unit proxy) (wastewater, by mass, GLO)
compatible: grade the input names wastewater only; wastewater (Wastewater treated) is taken; unit kilogram; system model cutoff (one database); allocation mass (single-output); boundary plant gate of a site utility: no utility market yet (docs/markets.md)
Cooling water return
product:CW
streams Q05-Q08, Q10, Q11: precondenser, gas cooler, column condensers, waste-water trim and product coolers, 32.4 MW (D-005, D-007, D-008)
cold, 25 degC
From streams Q05, Q06, Q07, Q08, Q10, Q11
2.591kilowatt hourassumed4 4 1 3 3Atlas (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, 25 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)

Elementary flows

No elementary flows are exported for this activity (pass-through emissions and free inputs are left out, see the caveats).

The streams are the plant's own flows: an amount here is allocated and per 1 kilogram of Acetaldehyde 99.9 wt% to storage, 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/acetaldehyde-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 2.33 · PEF-style DQR 2.71
TeR 3 · GeR 3 · TiR 1 · P 3.85 · 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: closed
  • lci-element-balance: closed
  • lci-mass-balance: closed
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

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", "acetaldehyde-1:acetaldehyde-one-stage-wacker-oxidation-of-ethylene-100-kt-a:product:PROD"))

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

Acetaldehyde 99.9 wt% to storage, from Acetaldehyde by the one-stage Wacker oxidation of ethylene (100 kt/a) (dataset acetaldehyde-one-stage-wacker-oxidation-of-ethylene-100-kt-a 0.1.0), ChemE-as-Code Process Atlas LCI database preview-c3ab348, activity acetaldehyde-1:acetaldehyde-one-stage-wacker-oxidation-of-ethylene-100-kt-a:product:PROD. 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}
}