Conceptual Design of Double‐Feed Reactive Distillation Columns

Avami, Akram

doi:10.1002/ceat.201200382

Cited by 6 publications

(3 citation statements)

References 14 publications

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“…In recent years, reactive distillation has made promising progresses. Avami 1 investigated the operation parameters for double‐feed reactive distillation columns by introducing methyl acetate and ethyl acetate. Based on pinch point map analysis and feed angle method, limiting bounds of operating parameters in changed properties of singular points were determined.…”

Section: Introductionmentioning

confidence: 99%

Hydrodynamic Behavior and Residence Time Distribution of Industrial‐Scale Bale Packings

et al. 2014

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The hydrodynamic behavior of bale packing was tested in a catalytic distillation column. Models and empirical equations for predicting pressure drop and dynamic liquid holdup were proposed and compared with experimental results. The examination of residence time distribution (RTD) relied on the pulse method and a conductivity meter which deduced the axial Péclet number, axial dispersion coefficient, and dynamic liquid holdup. The relations of dynamic liquid holdup obtained from gravimetric draining experiments and RTD studies were discussed with static and total liquid holdup. Potential impacts of the liquid distributor and conductivity cell were also assessed. The results prove that models and empirical equations fit well and are reliable in design and scale‐up.

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Section: Introductionmentioning

confidence: 99%

Hydrodynamic Behavior and Residence Time Distribution of Industrial‐Scale Bale Packings

et al. 2014

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“…The recycle streams also provide additional methanol to be fed into the reaction mixtures. Based on the design proposed [1,2], the bottom product from the reactive distillation column is high-purity TAME while the distillate contains about 30 mol % methanol and 70 mol % inert C5s. To be practical, this excess methanol will be recovered and recycled back to the system such that the only products will be pure TAME and inerts.…”

Section: Introductionmentioning

confidence: 99%

Multiple Analysis in a Reactive Distillation Column for the Synthesis of tert‐Amyl Methyl Ether

et al. 2014

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tert-Amyl methyl ether (TAME) is produced via reactive distillation. A simulation is set up and controlled on Aspen HYSYS v 8.0 for generating the highest purity of TAME. This simulation includes a plug-flow reactor and a reactive distillation column. Emphasis was put on finding the optimal operating conditions of the reactive distillation column in order to get the maximum purity of TAME. The operational parameters were reflux ratio, number of reactive stages in the distillation column, and condenser pressure. The results indicated the optimal reflux ratio and condenser pressure which could be adapted to industrial scale.

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“…These fixed points are also termed pinch points since the driving force for mass transfer between the phases becomes infinitesimally small . The pinch points are the basis for different shortcut methods for the calculation of the minimum energy demand in single-feed distillation columns for the separation of homogeneous − and heterogeneous mixtures, , extractive distillation columns, and reactive distillation . Although impressive results have been published for these methods they are not implemented in commercial process simulators.…”

Section: Introductionmentioning

confidence: 99%

A Unifying Approach for the Calculation of Azeotropes and Pinch Points in Homogeneous and Heterogeneous Mixtures

Skiborowski

Bausa

Marquardt

2016

Ind. Eng. Chem. Res.

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This paper presents a unifying approach for a reliable calculation of all azeotropes and pinch points for homogeneous and heterogeneous non-reactive mixtures. The approach builds on a reformulation of the pinch-equation system and an efficient continuation algorithm including bifurcation analysis. The calculation of azeotropes is based on an analogy of univolatility curves and the pinch branches for pure component products. The resulting method can efficiently and reliably calculate all homogeneous and heterogeneous non-reactive azeotropes. The only exception would be the existence of isolated univolatility curves inside the composition space, which to the best knowledge of the authors has never been reported. Since the method can further determine the pinch branches and pinch points based on the knowledge of the azeotropes, it presents a self-contained method for calculation of the most important information on nonideal multicomponent mixtures to support process synthesis. The application of the method is illustrated by means of several complex mixtures.

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Conceptual Design of Double‐Feed Reactive Distillation Columns

Cited by 6 publications

References 14 publications

Hydrodynamic Behavior and Residence Time Distribution of Industrial‐Scale Bale Packings

Hydrodynamic Behavior and Residence Time Distribution of Industrial‐Scale Bale Packings

Multiple Analysis in a Reactive Distillation Column for the Synthesis of tert‐Amyl Methyl Ether

A Unifying Approach for the Calculation of Azeotropes and Pinch Points in Homogeneous and Heterogeneous Mixtures

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