How to simulate lpg dividing-wall splitter
Propane / isobutane / n-butane separated in one thermally-coupled dividing-wall column (shortcut splits): three on-spec products from a single shell. From the ChemSep casebook (LPG_DWC, Gas Processing Dec 2018).
- 1Open the ready-made model
Open the "LPG dividing-wall splitter" model in the MaximaLabs workspace — no install, no license. It loads live on the canvas, ready to edit and run.
- 2Confirm the thermodynamics
This process is modeled with the PENG-ROBINSON property package over propane, isobutane, n_butane — already selected, so the phase equilibrium and enthalpy are physically consistent from the first run.
- 3Review the flowsheet
The flowsheet chains DWC. Every block is a real, solvable unit op you can reconfigure on the canvas.
- 4Run the simulation
Click Run. The deterministic solver converges the material and energy balances (recycles included) and fills the live stream table — the AI never invents a number.
- 5Read the results and iterate
Inspect the converged streams, tweak a spec, and re-run — or ask the AI copilot to explain a result or diagnose a failed solve in plain English.
- Thermodynamics
- PENG-ROBINSON
- Components
- propane, isobutane, n_butane
- Unit operations
- DWC
Opens live on the canvas — free, no install.
Explore the model & flowsheetFrequently asked questions
- What does the LPG dividing-wall splitter model simulate?
- Propane / isobutane / n-butane separated in one thermally-coupled dividing-wall column (shortcut splits): three on-spec products from a single shell. From the ChemSep casebook (LPG_DWC, Gas Processing Dec 2018).
- Which thermodynamic method does it use?
- The PENG-ROBINSON property package, over propane, isobutane, n_butane — already selected. You can switch the method on the canvas before running.
- Which unit operations are in the flowsheet?
- It chains DWC. Every block is a real, solvable unit operation you can reconfigure, add to, or remove.
- Do I need to install software or buy a license?
- No. LPG dividing-wall splitter runs entirely in your browser on MaximaLabs — free, no install, no license. Open the model to load it live and run the deterministic solver.
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Perry Ch.13 Example 4: sloppy-butane three-cut splitter
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