Every industrial symbiosis proposal dies in validation.This is the validation.

The question is never whether the stream has value. It is whether the numbers survive a technical review — and answering that has meant a feasibility study measured in months. Below is what replaces it: a route dossier computed from a real stream, where every reported figure is either derived from a balance that closed or is a declared input carrying its source.

How the engine gets these numbers →

A worked dossier, as the engine emits it

SP-7 M5 demo
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Physical
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  COMPUTED  Combustion LHV (Hess's law)                                                        32619.10 MJ  [SOURCED]
      combustion LHV by Hess's law, H2O(g) reference state (D-A/D-B)
  COMPUTED  Free-moisture penalty (charged against LHV)                                        -128.50 MJ  [SOURCED]
      the stream's own free water, driven off before any of the fuel value can be used (D-C) -
      distinct from the combustion hydrogen's H2O(g) product, already inside the LHV total above
  COMPUTED  Flue-gas sensible heat loss (charged against LHV)                                  -1786.97 MJ  [SOURCED]
      sigma=1.302e+06
      the combustion products' own sensible heat, carried away cooling from 298.15 K to 423.15 K
      (D-F) - distinct from the free-moisture penalty above and from the H2O(g) product term
      already inside the LHV total
  COMPUTED  Net usable energy (LHV less moisture penalty less flue-gas sensible heat) - TOTAL  30703.63 MJ (sigma: n/a - see note)  [SOURCED]
      the sum of the 3 lines above, 298.15 -> 423.15 K

Economics
---------
  COMPUTED  Net Usable Energy (priced)                                                         $363.77  [CLIENT]
      the Physical section's total, priced against the client gas basis
  COMPUTED  Landfill/Tipping Fees Avoided                                                      $0.00  [CLIENT]
      priced against the client landfill/tipping-fee basis
  COMPUTED  Processing/Transport Deductions                                                    $0.00  [CLIENT]
      priced against the client transport/processing basis (a magnitude - net_financial_impact()
      negates it before summing)
  COMPUTED  Net Financial Impact                                                               $363.77  [CLIENT]
      the sum of the three priced terms above
  COMPUTED  Net Annual Benefit                                                                 $1,818,839.22  [CLIENT]
      Net Financial Impact multiplied by the client's declared annual throughput

Where sigma collapsed, and what collapsed it:
  Net usable energy (LHV less moisture penalty less flue-gas sensible heat) - TOTAL: combustion_lhv()'s product-moles terms are built by hand-multiplying product_moles (an uncited operand) against a cited formation enthalpy, so they carry no sigma of their own (R36) - Rule 4 (D-E) collapses this composed total to sigma=None even though flue_gas_sensible_heat()'s own sub-balance total carries a real, positive sigma

Read the basis first

Every physical and per-unit figure above is stated per tonne of stream. The annual lines are that per-tonne result multiplied by a declared throughput. The engine output does not restate the basis on each line, so it is stated here.

The declared inputs behind the money

Natural gas at $12.50/MMBtu — client-declared, not a market forecast.
Throughput of 5,000 t/year — client-declared.
Exhaust temperature of 423.15 K — the recovery boundary assumed.

The annual figure is an arithmetic consequence of those three declared numbers. Change any one of them and it changes. It is not a promise, and it is not a quote.

What the tags mean

COMPUTED — derived from a balance that closed in this run.
[SOURCED] — a published reference value, carrying its citation.
[CLIENT] — declared by whoever supplied the stream. Never silently substituted.

Where the uncertainty went

The closing note records where an uncertainty band collapsed and exactly what collapsed it. A dossier that reports its own limits is the one worth checking; a number with no stated band is the one that fails review.

Why this survives review

Lookup tables answer questions. This closes them. Mass closes, energy closes, charge closes, elements close — and where a balance could not close, the dossier says so on the line rather than filling the gap with a plausible number. That is the whole property being offered: nothing in the output is asserted without either a closure behind it or a declared origin in front of it.

Run this on your stream

The dossier above was computed from a published stream analysis. Send the analysis for yours and an engineer will walk through the result with your technical team.