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NRTL VLE Process Flowsheets & Simulations

Explore 3 validated, solved NRTL VLE simulation flowsheets in MaximaLabs — real components: ethanol, water, acetone, ethylene_glycol. Open any one directly in your browser.

Solved via: NRTL.

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Pekin, Illinois, USA

Ethanol–water distillation

An 8-stage column concentrating ethanol overhead toward the azeotrope (the headline demo).

4 unit ops • NRTL

17 0

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COL
Acetone
Water
Reference model (ChemSep)

Acetone–water distillation

A 12-stage column recovers acetone overhead from a dilute aqueous solvent-recovery feed — a common industrial acetone/solvent-recycling duty.

4 unit ops • NRTL

17 0

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Solvent
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Extcol
Ethanol
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Recovcol
Water OUT
Glycol Recycle
Reference model (Luyben 2006)

Extractive distillation (ethanol/water with ethylene glycol)

Near-azeotropic ethanol/water (85 mol% ethanol) can't be pushed past the 89 mol% azeotrope by ordinary distillation. A heavy, high-boiling entrainer (ethylene glycol) fed near the top of the column raises water's relative volatility enough to pull overhead ethanol past the azeotrope in one pass; a second column then strips water overhead from the glycol, regenerating it as the bottoms product. The classic extractive-distillation textbook case (Luyben, Ind. Eng. Chem. Res. 2006, 45, 4625).

7 unit ops • NRTL

19 0

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