Perry Ch.13 Example 4: sloppy-butane three-cut splitter — a PENG-ROBINSON process flowsheet
A three-cut column with a side draw producing a deliberately 'sloppy' (off-spec, cheaper-to-make) butane cut between a propane overhead and a pentane-plus bottoms, from Chapter 13 of Perry's Chemical Engineers' Handbook.
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- Rigorous PENG-ROBINSON thermodynamics, solved by the same engine every simulation runs on.
- 1 unit operations modeled: COL.
- Focus areas: Distillation, Side draw, Textbook, Perry's Handbook.
- Thermodynamics
- PENG-ROBINSON
- Components
- propane, n_butane, n_pentane
- Unit operations
- COL
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Read the step-by-step guideReproduce this exact result from Python — the real client.get_example() → run_and_wait() path, not a mockup.
from flowsim.sdk import FlowSimClient
client = FlowSimClient()
example = client.get_example("perry-sloppy-butane-splitter")
sim = client.create_simulation(example["title"], example["flowsheet"])
result = client.run_and_wait(sim["id"])
print(result["status"]) # "converged"
streams = client.streams(sim["id"])Related models
Perry Ch.13 Example 3: butane/pentane splitter
A simple two-cut distillation splitting butane overhead from pentane bottoms, from Chapter 13 of Perry's Chemical Engineers' Handbook.
Perry Ch.13 Example 2: lean-oil absorber
Simple absorber recovering butane and pentane from a process gas into a lean-oil (n-dodecane) absorbent, from Chapter 13 of Perry's Chemical Engineers' Handbook.
Perry Ch.13 Example 5: two-step absorber with intercooling
Two absorption stages in series with intercooling between them (removing the heat of absorption, which otherwise raises K-values and hurts recovery) to maximize LPG recovery, from Chapter 13 of Perry's Chemical Engineers' Handbook.
Perry Ch.13 Example 6: reboiled light-ends stripper
A reboiled stripper removing dissolved light gases (nitrogen, methane through propane) from a heavier liquid, using reboil vapor as the stripping gas, from Chapter 13 of Perry's Chemical Engineers' Handbook.
Aromatics column (Strigle)
A simple aromatics splitter recovering benzene overhead from a toluene/xylene-heavy feed, as described by R. Strigle (Gulf Publishing, 1987) — a classic packed-column textbook design case.
Depropanizer (Strigle)
A depropanizer recovering propylene and propane overhead from a C₄-and-heavier hydrocarbon feed, as described by R. Strigle (Gulf Publishing, 1987).