Sourced conceptual inventory per tonne of high-calcium quicklime: limestone and process CO2 from stoichiometry, fuel heat, electricity and kiln emissions from EU CLM BREF ranges for the PFRK. No flowsheet; not reviewed.
Quicklime by calcination of limestone in a natural-gas-fired parallel flow regenerative kiln
Sourced conceptual inventory per tonne of high-calcium quicklime: limestone and process CO2 from stoichiometry, fuel heat, electricity and kiln emissions from EU CLM BREF ranges for the PFRK. No flowsheet; not reviewed.
Research outputNot engineering advice and not an approved design: do not use it for construction, operation or safety decisions. What this means
Overview
- Capacity
- per tonne of quicklime (the dataset's basis); no plant size (PFRKs are built for 100 to 600 t/d)
What goes in and out
In
Out
- Calcium oxideMain product
- Calcium oxideCo-productproduct:byproduct-lime: off-specification lime and filter dust, sold for other uses; allocated by mass with the quicklime (the dataset's allocation). No inventory_key, so that it is never taken as an Atlas producer of calcium-oxide
- Carbon dioxideEmissionprocess CO2 of the carbonate
- Carbon dioxideEmissionfuel CO2
- WaterEmissioncombustion water vapour
Utilities: Electricity (kiln only)
Life cycle assessment
No footprint assessed yet; the process is part of the life-cycle inventory below.
In the open LCI database (cheme-as-code-atlas-preview-a3c52e4) as Calcium oxide, Quicklime, high-calcium, lump (counted as CaO) Preliminary; By-product lime (off-specification lime and filter dust), sold for other uses Preliminary.
Download it for Brightway, openLCA and other tools.
In the LCI database: system model, datasets and KPIs against the benchmarks
In the LCI database
- Status
- Preliminary 1 unmapped exchange. Some exchanges have no background mapping yet: they are exported unlinked and count no burden, so the inventory is incomplete.
- System model
- attributional, cut-off (methodology 1.1.0)
- Allocation
- mass (deviation, from dataset) · product:byproduct-lime 3 %, product:quicklime 97 %
- Allocation findings
- none
- Change report
- Not available: this build has no change report against an earlier release.
- Dataset pages
- By-product lime (off-specification lime and filter dust), sold for other uses Preliminary · Calcium oxide, Quicklime, high-calcium, lump (counted as CaO) Preliminary
KPI benchmark positions
| KPI | Value | Reference range | Position |
|---|---|---|---|
| Kiln electricity per t of quicklime | – kWh/t | 20 to 40 kWh/t | not evaluated |
| Calcination (process) CO2 per t of quicklime | – t/t | 0.75 to 0.75 t/t | not evaluated |
| Limestone per t of saleable quicklime | – t/t | 1.4 to 2.2 t/t | not evaluated |
| Process and combustion CO2 per t of quicklime | – t/t | 0.987 to 1.21 t/t | not evaluated |
Maturity and review
Design maturity Concept (claimed): An idea or first flowsheet; numbers are rough. No independent engineering review yet. Automated checks passing is not a review.
Calculation maturity, from the checked evidenceNot assessed
The process has no maturity report (cheme maturity, checks/maturity.json), so no calculation maturity is established.
No level shownThe design maturity (Concept) is the manifest's claim, not evidence. A level appears here once the process's repository holds a current report from
cheme maturity --write.Artifact completeness
Which deliverables exist. They never raise a calculation maturity level: a drawing from unchecked numbers is still unchecked.
Not reported without a maturity report.
Independent review
Not independently reviewed
No independent engineering review yet. Automated checks passing is not a review.
Set by people only. Reaching a calculation maturity level or passing automated checks is not an independent review or an approval.
Where the evidence comes from
- Report
processes/lime-1/checks/maturity.json(not in the library)- Method
- How ChemE-as-Code checks the levels (requirement by requirement)
Open items
0 open items · 0 closed
New action itemNew engineering holdNew technical queryNew design changeAll issues
Sources
- Library version
- a3c52e4 (process last changed in a3c52e4)
- Data
- Catalog record (JSON) · CC-BY-4.0
- Files
- View the files on GitHub · change history and authors
References
- Schorcht, F., Kourti, I., Scalet, B.M., Roudier, S., Delgado Sancho, L. (2013) Best Available Techniques (BAT) Reference Document for the Production of Cement, Lime and Magnesium Oxide. JRC Reference Report EUR 26129 EN, chapter 2 (lime) and section 4.3 (BAT conclusions for lime) · doi:10.2788/12850
- IPCC (2006) 2006 IPCC Guidelines for National Greenhouse Gas Inventories, Volume 3: Industrial Processes and Product Use, chapter 2 (Mineral Industry Emissions), section 2.3 (Lime production)
How to cite
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).
For this process: "Quicklime by calcination of limestone in a natural-gas-fired parallel flow regenerative kiln", ChemE-as-Code process library, version a3c52e4.
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). ChemE-as-Code: An Open-Source Platform for Agentic AI in Chemical Engineering. arXiv:2611.07947. https://doi.org/10.48550/arXiv.2611.07947
BibTeX
@misc{schweidtmann_cheme_as_code,
author = {Schweidtmann, Artur M.},
title = {{ChemE-as-Code: An Open-Source Platform for Agentic AI in Chemical Engineering}},
year = {2026},
eprint = {2611.07947},
archivePrefix = {arXiv},
doi = {10.48550/arXiv.2611.07947},
url = {https://arxiv.org/abs/2611.07947}
}