Butanol/water separation via LLE-assisted distillation — a NRTL process flowsheet
Butanol and water form a heterogeneous azeotrope: overhead vapor condenses into two liquid phases (a butanol-rich organic layer and a water-rich aqueous layer). A decanter splits the condensed reflux by liquid-liquid equilibrium, returning the water-rich phase to strip more butanol while the organic phase is drawn as a near-pure butanol product — the phase split does the separating work an ordinary VLE column can't past the azeotrope. Luyben et al., Energy Fuels 2008, 22, 4249.
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- Rigorous NRTL thermodynamics, solved by the same engine every simulation runs on.
- 2 unit operations modeled: COL, Decanter.
- Focus areas: Heterogeneous azeotrope, Decanter, LLE, Biofuel.
- Thermodynamics
- NRTL
- Components
- 1_butanol, water
- Unit operations
- COLDecanter
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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("butanol-water-lle-distillation")
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
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