Recovery of dilute acetic acid through esterification in a reactive distillation column

Saha, Basudeb; Chopade, Shubham P.; Mahajani, Sanjay M.

doi:10.1016/s0920-5861(00)00326-6

Cited by 98 publications

(48 citation statements)

References 8 publications

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“…The energy consumption of the RD process is only half of the conventional batch one. Also the size of the plant could be drastically reduced [66,67].…”

Section: Reactive Distillationmentioning

confidence: 99%

Bio-produced Acetic Acid: A Review

Vidra

Németh

2017

Period. Polytech. Chem. Eng.

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“…The energy consumption of the RD process is only half of the conventional batch one. Also the size of the plant could be drastically reduced [66,67].…”

Section: Reactive Distillationmentioning

confidence: 99%

Bio-produced Acetic Acid: A Review

Vidra

Németh

2017

Period. Polytech. Chem. Eng.

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“…In this section we present a few possible column configurations for the recovery process. Some of these configurations are based on the work by Saha et al (2000). Configurations 1-6 shown in Fig.…”

Section: Alternate Designs For Acetic Acid Recovery By Rd Columnmentioning

confidence: 99%

“…Another very promising option is reactive distillation, where acetic acid is reacted off with a suitable alcohol in order to produce a valuable ester product at the one end of the column and the aqueous stream free of organic impurities at the other end of the column. In particular, esterification with n-butanol was proposed for this purpose (Saha et al 2000). In that work, however, by trial and error experiments a maximum of up to 58% acetic acid conversion was achieved with a 100% excess of butanol in feed.…”

Section: Introductionmentioning

confidence: 99%

New processes for recovery of acetic acid from waste water

Gangadwala

Rădulescu

Kienle

et al. 2007

Clean Techn Environ Policy

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This paper addresses an industrially important problem of acetic acid recovery from a waste water stream via reactive distillation. The presence of a three-phase regime on the column stages due to a liquid-liquid phase split between aqueous and organic phases is a typical characteristic of this process. A modern modeling approach is presented to detect the existence of potential phase splitting in this column. A good agreement of a phase splitting model with the literature data has been shown. A theoretical study for the recovery of acetic acid from its 30 wt% aqueous solution by esterification with nbutanol is presented. Alternate column structures were investigated and two structures rendering theoretically close to 100% conversion of acetic acid were identified. The dynamic simulations were performed on proposed structures to see transient responses wrt. to common process disturbances.

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“…This contribution proposes a dynamic reactive distillation column model taking into account the potential liquid phase splitting, very useful in practical studies on the intricate nonlinear process dynamic behavior (including steady state multiplicities, bistability and self sustained nonlinear oscillations). The algorithm is successfully tested on a benchmark example for acetic acid (AcH) recovery [3].…”

Section: Introductionmentioning

confidence: 99%

Dynamics of reactive distillation processes with potential liquid phase splitting

Gangadwala

Rădulescu

Paraschiv

et al. 2007

Computer Aided Chemical Engineering

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A dynamic reactive distillation (RD) column model is developed for highly nonideal systems with potential phase splitting. Dynamic simulations and nonlinear dynamic analysis are performed for recovery of acetic acid from waste waters by esterification with n-butanol, which is an interesting alternative to nonreactive separation processes. Two alternative RD column designs were tested with respect to their open loop transient responses to process disturbances. One parameter continuation with eigenvalue calculations reveals existence of multiple steady states with stable and unstable branches. These steady states were found to have totally different phase splitting behavior of the original liquid phase inside the column. Conclusions are drawn for process operation.

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Recovery of dilute acetic acid through esterification in a reactive distillation column

Cited by 98 publications

References 8 publications

Bio-produced Acetic Acid: A Review

Bio-produced Acetic Acid: A Review

New processes for recovery of acetic acid from waste water

Dynamics of reactive distillation processes with potential liquid phase splitting

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