MaximaLabs

Ammonia synthesis, a real converged recycle

Fresh syngas joins recycled unconverted gas, reacts to ammonia over a real equilibrium converter, and purges the inert argon a single pass could never consume.

Real Wegstein-accelerated recycle convergenceChemical-equilibrium converter, not fixed yieldArgon purge bleed — the reason every real loop needs one
Fresh syngas (N2/H2/Ar)
Mixer
Converter
Chiller
Flash
Liquid NH3
Splitter
Recycle compressor
Purge (inert argon)

The actual dark-mode canvas: fresh syngas joining recycled unconverted gas, reacting to ammonia, chilled to condense liquid product, with the remaining vapor split into recycle and purge — the same P&ID symbols you edit in the app.

A real converged recycle, not a single pass

The recycle edge is torn and closed by Wegstein-accelerated iteration — the same convergence engine every recycle flowsheet in this app uses — and the purge exists specifically because a single-pass converter can never fully consume the inert argon a real synthesis-gas feed carries.

N2+3H22NH3,Keq=pNH32pN2pH23\text{N}_2 + 3\text{H}_2 \rightleftharpoons 2\text{NH}_3, \quad K_{eq} = \frac{p_{NH_3}^2}{p_{N_2}\,p_{H_2}^3}
Wegstein-accelerated recycle: x(k+1)=x(k)+q(g(x(k))x(k))\text{Wegstein-accelerated recycle: } x^{(k+1)} = x^{(k)} + q\bigl(g(x^{(k)}) - x^{(k)}\bigr)
Purge fraction set so inert (Ar) concentration reaches a steady-state balance, not unbounded buildup\text{Purge fraction set so inert (Ar) concentration reaches a steady-state balance, not unbounded buildup}

Unit ops shipped for this vertical

Mixer

Combines multiple streams into one, closing the mass and energy balance.

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Equilibrium reactor

Reaction extent set by chemical equilibrium Keq(T), not a fixed conversion.

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Heater / cooler

Duty- or outlet-condition-specified energy-balance stage.

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Flash drum

Single-stage vapor-liquid equilibrium split at a fixed temperature/pressure.

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Splitter

Divides one stream into two or more by specified split fractions.

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Compressor

Polytropic compression to pipeline/process pressure.

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Live plant integration

Stream converter outlet temperature, recycle compressor discharge, and purge composition from your loop's OPC-UA server into this flowsheet's twin comparison — deviations from the solved recycle are flagged automatically.

See the Digital Twin platform →

Try it yourself

  • Real Wegstein-accelerated recycle convergence
  • Chemical-equilibrium converter, not fixed yield
  • Argon purge — the reason every real loop needs one

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