Methanol synthesis, from real syngas equilibrium
Syngas reacted to methanol at temperature-corrected chemical equilibrium, degassed in two stages, and distilled to methanol and water.
The actual dark-mode canvas: syngas reacted to methanol, degassed in two stages to keep the column feed genuinely light on dissolved permanent gas, then distilled to methanol and water — the same P&ID symbols you edit in the app.
Why the degassing stages matter
The high-pressure separator's crude liquid still carries several mol% dissolved CO2/H2/CO — feeding that directly to the column can mislead a bubble-point search onto a spurious low-temperature root nowhere near methanol/water's real ~340 K bubble point, so the letdown-plus-flash degassing genuinely earns the column's clean convergence.
Unit ops shipped for this vertical
Reaction extent set by chemical equilibrium Keq(T), not a fixed conversion.
Duty- or outlet-condition-specified energy-balance stage.
Single-stage vapor-liquid equilibrium split at a fixed temperature/pressure.
Isenthalpic Joule-Thomson expansion — the same relation cryogenic JT liquefaction relies on.
Wang-Henke MESH column solver — the same rigorous solve at any scale.
Stream converter conversion, HP separator pressure, and column reflux from your loop's OPC-UA server into this flowsheet's twin comparison — deviations from the solved equilibrium are flagged automatically.
See the Digital Twin platform →Try it yourself
- ✓Temperature-corrected Keq(T) equilibrium
- ✓Two-stage degassing before the atmospheric column
- ✓From the ChemSep casebook (Methanol_iecr49p6150)