Dynamic analysis of heterogeneous azeotropic distillation

Soemantri Widagdo; Warren D. Seider; Donald H. Sebastian

doi:10.1002/aic.690380810

Dynamic analysis of heterogeneous azeotropic distillation

Soemantri Widagdo, Warren D. Seider, Donald H. Sebastian

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24 Scopus citations

Abstract

A model and algorithm are presented for the separation of mixtures where the phase distribution on the trays is extremely uncertain, as it occurs when the mixtures have two partially‐miscible binary pairs and a minimum‐boiling ternary azeotrope. Included are an algorithm for the consistent initialization of index‐I differential/algebric equations, a novel algorithm for branch switching when the phase distribution changes at a real bifurcation point, and a reliable algorithm for phase stability analysis. Open‐loop responses are presented for the dehydration of secbutanol with disecbutylether in single‐stage, 12‐tray, and 33‐tray separators. These simulation results for the 33‐tray tower are in qualitative agreement with experimental measurements for the ARCO SBA‐II tower.

Original language	English (US)
Pages (from-to)	1229-1242
Number of pages	14
Journal	AIChE Journal
Volume	38
Issue number	8
DOIs	https://doi.org/10.1002/aic.690380810
State	Published - Aug 1992
Externally published	Yes

All Science Journal Classification (ASJC) codes

Biotechnology
Environmental Engineering
General Chemical Engineering

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10.1002/aic.690380810

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abstract = "A model and algorithm are presented for the separation of mixtures where the phase distribution on the trays is extremely uncertain, as it occurs when the mixtures have two partially‐miscible binary pairs and a minimum‐boiling ternary azeotrope. Included are an algorithm for the consistent initialization of index‐I differential/algebric equations, a novel algorithm for branch switching when the phase distribution changes at a real bifurcation point, and a reliable algorithm for phase stability analysis. Open‐loop responses are presented for the dehydration of secbutanol with disecbutylether in single‐stage, 12‐tray, and 33‐tray separators. These simulation results for the 33‐tray tower are in qualitative agreement with experimental measurements for the ARCO SBA‐II tower.",

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AU - Widagdo, Soemantri

AU - Seider, Warren D.

AU - Sebastian, Donald H.

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AB - A model and algorithm are presented for the separation of mixtures where the phase distribution on the trays is extremely uncertain, as it occurs when the mixtures have two partially‐miscible binary pairs and a minimum‐boiling ternary azeotrope. Included are an algorithm for the consistent initialization of index‐I differential/algebric equations, a novel algorithm for branch switching when the phase distribution changes at a real bifurcation point, and a reliable algorithm for phase stability analysis. Open‐loop responses are presented for the dehydration of secbutanol with disecbutylether in single‐stage, 12‐tray, and 33‐tray separators. These simulation results for the 33‐tray tower are in qualitative agreement with experimental measurements for the ARCO SBA‐II tower.

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Dynamic analysis of heterogeneous azeotropic distillation

Abstract

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