Entrainer Process Flowsheets & Simulations
Explore 2 validated, solved Entrainer simulation flowsheets in MaximaLabs — real components: ethanol, water, n_hexane, acetic_acid, diisobutyl_ketone. Open any one directly in your browser.
Solved via: NRTL, PENG-ROBINSON.
Heterogeneous azeotropic distillation
An n-hexane entrainer carries water overhead as a ternary heteroazeotrope; the condensed overhead splits in a three-phase flash into an organic layer and an aqueous layer, while dry ethanol leaves in the bottoms — the three-phase separation ordinary distillation cannot do.
7 unit ops • NRTL
17 0
View & openDilute acetic acid recovery by extractive distillation
Recovering acetic acid from a dilute aqueous stream (e.g. cellulose acetate or terephthalic acid plant wastewater) using diisobutyl ketone (DIBK) as an extractive entrainer. Because acetic acid and water form no azeotrope but have a relative volatility that flattens toward 1 as the mixture concentrates, straight distillation needs an impractically tall column and heavy reboil duty; the entrainer raises water's relative volatility so the extractive column takes water overhead in far fewer stages, and a second column then strips the entrainer from the acid bottoms for recycle.
7 unit ops • PENG-ROBINSON
17 0
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