NGL fractionation, four real cascaded columns
A demethanizer, deethanizer, depropanizer, and debutanizer recovering pipeline-spec sales gas plus ethane, propane, and butane products.
The actual dark-mode canvas: a four-column cascade splitting wellhead-pressure raw natural gas into pipeline-spec sales gas plus ethane, propane, and butane products — the same P&ID symbols you edit in the app.
Four real columns, genuinely cascaded
Each column solves its own real MESH equations, and each one's bottoms is literally the next column's feed — a genuine multi-column train, not four independent split-fraction shortcuts dressed up as a fractionation cascade.
Unit ops shipped for this vertical
Wang-Henke MESH column solver — the same rigorous solve at any scale.
Stream each column's reflux ratio and product purity from your train's OPC-UA server into this flowsheet's twin comparison — deviations from the solved cut points are flagged automatically.
See the Digital Twin platform →Try it yourself
- ✓Four cascaded real MESH columns
- ✓Demethanizer through debutanizer, one connected train
- ✓After Luyben (Ind. Eng. Chem. Res. 2013, 52, 10741)