Cryogenic air separation, the real double-column split
A genuine pressure-cascaded double column — air compressed, cooled, and split into a high-pressure column whose two outlets throttle into a low-pressure column, with a liquid side draw feeding an argon column.
The actual dark-mode canvas: air compressed and cooled into a pressure-cascaded double column, with a liquid side draw feeding an argon column — the same P&ID symbols you edit in the app.
Rigorous multi-column MESH
Every column is a real Wang-Henke MESH solve, and every JT valve is a genuine isenthalpic throttle — the same relation cryogenic liquefaction cycles depend on — not a shortcut split fraction.
Unit ops shipped for this vertical
Polytropic compression to pipeline/process pressure.
Duty- or outlet-condition-specified energy-balance stage.
Wang-Henke MESH column solver — the same rigorous solve at any scale.
Isenthalpic Joule-Thomson expansion — the same relation cryogenic JT liquefaction relies on.
Multi-draw atmospheric column — side cuts carved from the converged tray profile.
Stream cold-box temperatures, column pressures, and N2/O2/Ar purity tags from your ASU's OPC-UA server into this flowsheet's twin comparison — deviations from the solved column profile are flagged automatically.
See the Digital Twin platform →Try it yourself
- ✓Multi-feed MESH across a pressure-cascaded double column
- ✓Real Joule-Thomson throttle valves, not a shortcut split
- ✓Argon side-column rejection from a liquid side draw