Sustainability & LCA

Measure the footprint before you scale it

Matflow prices the environmental side of a material or process: cradle-to-gate global warming potential, cumulative energy demand, waste E-factor and a 0–100 ESG score — with process flowsheet modelling and carbon-price sensitivity when a candidate needs deeper review.

Composition LCA

Four metrics from one composition

Score a material or formulation by mass fraction against a built-in factor library, with the result reported per kg of product.

Climate
Global warming potential

kg CO₂eq per kg of product, weighted by the mass fraction of every component in the composition.

Energy
Cumulative energy demand

MJ per kg of product, so energy-intensive routes are visible before a candidate reaches the bench.

Waste
E-factor

kg of waste per kg of product — the process-efficiency metric chemists already use to compare routes.

Summary
ESG sustainability score

A 0–100 score derived from the computed GWP (higher is cleaner), so a footprint can travel with a candidate as one number.

How a composition is costed.Each component is weighted by its share of the total mass fraction. Recognised material names use their library factors; a name that is not in the library takes a documented generic factor instead of being silently dropped — so check names before treating a number as material-specific.
Flowsheet LCA

From a recipe to an annual footprint

Scale a synthesis route to a production rate and get utility demand, greenhouse-gas emissions and — where the full engine runs — process economics from the same solved flowsheet.

  • Two engines, one reporting contract — a real BioSTEAM steady-state flowsheet when the package is installed — precursor mixing, a sol-gel stirred hold tank, a 110 °C dryer and a calciner at your setpoint — or a mass & energy balance surrogate that is always available. Every response states which engine ran.
  • Shared factors across engines — both engines use the same grid and steam emission factors, so switching engines does not silently change the answer for the same utilities.
  • Real process economics on the BioSTEAM path — the solved flowsheet feeds a bst.TEA cash-flow analysis — minimum selling price, fixed and total capital, annual operating and utility cost — not a fixed formula.
  • Versioned background data — eGRID 2023 subregion averages and USEEIO v2.0 sector aggregates are static, versioned tables with source and vintage attached — never live-scraped.
  • Annual scale in, annual footprint out — set the production rate in kg/year and the calcination temperature; the response reports GWP including material emissions, electricity and steam demand, and tonnes of CO₂eq per year.
  • Four biorefinery templates — cellulosic ethanol, lactic acid/PLA, HEFA sustainable aviation fuel and CO₂-to-green-methanol run through a factor-method TEA, delegating to the real BioSTEAM service when a flowsheet specification is supplied and the package is installed.
What the response reports
  • Engine — BioSTEAM or the mass & energy balance surrogate.
  • Metrics — GWP with material emissions, CED, electricity and steam demand.
  • Annual footprint — tonnes of CO₂eq per year at your production scale.
  • Provenance — grid and steam factor source and vintage.
  • Database — ecoinvent, useeio_screening or builtin, stated honestly.
4
Footprint metrics per composition
GWP · CED · E-factor · ESG score
2
Flowsheet engines, one contract
BioSTEAM real flowsheet · mass & energy surrogate
11
Regional grid factors in the Scope 2 view
Published averages, versioned static tables
$0–200/t
Carbon-tax sensitivity range
MAC curve with a break-even per measure
Scope 1/2/3 & carbon price

Stress-test a route against the price of carbon

A dedicated carbon-sensitivity engine builds a Scope 1/2/3 inventory from documented process benchmarks, then re-prices it across a carbon-tax range.

Boundary
Scope 1 / 2 / 3 inventory

Direct emissions, regional grid electricity and upstream emissions for a named process benchmark, each reported separately and as a total.

Carbon price
Carbon-tax sensitivity curve

Tax exposure from $0 to $200 per tonne of CO₂, showing the green product penalty against the fossil baseline at each price point.

Abatement
Marginal abatement cost curve

Decarbonisation measures ranked by dollars per tonne abated, each marked profitable or not at the carbon price you choose.

Uncertainty
Sensitivity and Monte-Carlo band

One-at-a-time ±10% swings on electricity use, grid factor and upstream emissions, plus a seeded 400-draw Monte-Carlo p5/p50/p95 band.

Documented inputs, screening purpose.Benchmarks cover e-methanol from captured CO₂, HEFA sustainable aviation fuel, green ammonia and electrified ethylene; grid factors cover eleven published regional averages. These are static, documented inputs for pre-screening — not plant measurements.
Honest scope

Screening-grade, and labelled that way

The same discipline the platform applies to prediction applies to sustainability: state the boundary, name the engine, report the database.

  • Screening-grade, not certified — results are screening-grade COMPUTED estimates over a stated system boundary. They are not a certified ISO 14040/14044 study and are not suitable for product claims or environmental product declarations (EPDs).
  • ecoinvent is never bundled — the commercial ecoinvent database is paid and is never vendored, downloaded, scraped or redistributed. An operator holding a license can point the server at their own copy; otherwise the response honestly reports ecoinvent_available: false.
  • The database is reported — every flowsheet response carries lca_db — ecoinvent, useeio_screening or builtin — alongside the engine that ran, so you can always see what produced the number.
  • Provenance on the factors — grid and steam factors carry their source and vintage (eGRID 2023, USEEIO v2.0, curated), not just a value.
  • Named gaps, not silent ones — a material name that is not in the factor library is costed with a documented generic factor rather than dropped — check the library before treating a composition number as material-specific.
Not for product claims or EPDs.The flowsheet response carries this screening note verbatim: "Screening-grade coarse background: eGRID annual averages and USEEIO economy-wide sector aggregates — suitable for pre-screening only, not for product claims or EPDs."
Questions

What these numbers are, and are not

Is this a certified life-cycle assessment?
No. Every LCA result in Matflow is a screening-grade computed estimate over a stated boundary. It is designed to compare candidates early, not to produce product claims or environmental product declarations. A certified study needs a certified practitioner, reviewed inventory data and a declared programme.
Which background database actually runs?
By default the platform uses built-in screening factors derived from eGRID 2023 and USEEIO v2.0. If an operator has a licensed ecoinvent database and Brightway2 installed, flowsheet runs can use it — and the response reports lca_db: ecoinvent. ecoinvent is never bundled with Matflow.
What does the ESG sustainability score mean?
It is a 0–100 summary of the computed global warming potential for a composition — higher is cleaner — so footprint can sit next to performance and cost as a single number. It is derived from the same factors as the GWP result, not a separate assessment.
Composition result or flowsheet result — which do I need?
The composition result costs material inputs by mass fraction from the factor library. The flowsheet result models the synthesis route — dissolution, mixing, drying, calcination — at an annual production scale, adding utility demand, direct material emissions and, on the BioSTEAM path, process economics.
What can the carbon sensitivity tool compare?
Four documented process benchmarks — e-methanol from captured CO₂, HEFA sustainable aviation fuel, green ammonia and electrified ethylene — across eleven regional grid averages, with a carbon price from $0 to $200 per tonne. It is a screening and planning view, not a plant-specific footprint.
Do these numbers replace a real LCA or lab validation?
No. They prioritize which candidate or route deserves the deeper study. Experimental validation and a certified assessment remain the final word.

Put a footprint next to every candidate

Score a composition, solve the flowsheet across an annual production scale, and stress-test the result against a carbon price — then carry the candidate into TEA for the scale-up case.