Analyse de faisabilité, synthèse et conception des procédés de distillation réactive : état de l'art et analyse critique

Théry, Raphaële; Meyer, A.; Joulia, Xavier

doi:10.1002/cjce.5450830211

Cited by 11 publications

(5 citation statements)

References 71 publications

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“…During the past decades, many methods have been proposed for the feasibility analysis and the design of RD processes [16][17]. Thery et al [7] have developed a sequential and hierarchical approach for the design of reactive distillation column involving liquid phase reactions.…”

Section: The Extended Approach For the Design Of Vapour Phase Reactivmentioning

confidence: 99%

Vapour reactive distillation process for hydrogen production by HI decomposition from HI–I2–H2O solutions

Belaissaoui

Théry

Meyer

et al. 2008

Chemical Engineering and Processing: Process Intensification

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In this contribution, a sequential and hierarchical approach for the feasibility analysis and the preliminary design of reactive distillation columns is extended to systems involving vapour phase chemical reaction and is successfully applied to the HI vapour phase decomposition to produce H2.The complex phase and physico chemical behaviour of the quaternary HI-H2-I2-H2O system is represented by the Neumann's thermodynamic model and instantaneous vapour phase chemical equilibrium is assumed.Then, from minimal information concerning the physicochemical properties of the system, three successive steps lead to the design of the unit and the specification of its operating conditions: the feasibility analysis, the synthesis and the design step. First, the analysis of reactive condensation curve map method (rCCM), assuming infinite internal liquid and vapour flow rate and infinite reflux ratio, is used to assess the feasibility of the process. It determines the column structure and estimates the attainable compositions. These results are used as inputs data for the synthesis step. Based on the boundary value 2 design method (BVD), considering finite internal liquid and vapour flow rate and finite reflux ratio while neglecting all thermal effects and assuming a constant heat of vaporisation, the synthesis step provides more precise information about the process configuration (minimum reflux ratio, number of theoretical stages, localisation and number of reactive plates, position of the feed plate). Finally, the BVD method results are used to initialise rigorous simulations, based on an equilibrium stage model with energy balance, to estimate the reflux ratio taking into account thermal effect on the process.

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Section: The Extended Approach For the Design Of Vapour Phase Reactivmentioning

confidence: 99%

Vapour reactive distillation process for hydrogen production by HI decomposition from HI–I2–H2O solutions

Belaissaoui

Théry

Meyer

et al. 2008

Chemical Engineering and Processing: Process Intensification

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“…These results are also analyzed performing a postoptimal sensitivity analysis. Future developments will include (i) integration of the proposed optimization techniques and the feasibility analysis, 10 as a preliminary step, to improve the initialization and variable search range definition, (ii) optimization of the operational pressure, (iii) a more extensive comparison between equilibrium and nonequilibrium models, including the study of the influence of tray efficiency, and (iv) generalization of the proposed approach to a packed column.…”

Section: Discussionmentioning

confidence: 99%

“…The LaTEP laboratory (Pau, France) and the LGC laboratory (Toulouse, France) have been working since 1999 on the reactive distillation issue. Our works have covered the three previously mentioned aspects: design, experimental study, and simulation. − The experimental studies are supported by a tray−catalytic distillation column provided by the French Institute of Petroleum (Institut Français du Pétrole) at Pau and by a section of a packed column at Toulouse, allowing experimental studies at the pilot plant level. In this contribution, we propose a MINLP formulation for optimal design of a catalytic distillation column based on a generic nonequilibrium (rate based) model.…”

Section: Inroductionmentioning

confidence: 99%

A Mixed Integer Nonlinear Programming Formulation for Optimal Design of a Catalytic Distillation Column Based on a Generic Nonequilibrium Model

Gómez

Reneaume

Roques

et al. 2006

Ind. Eng. Chem. Res.

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The objective of this contribution is to propose a mixed integer nonlinear programming (MINLP) formulation for optimal design of a catalytic distillation column based on a generic nonequilibrium (NEQ) model. The use of this NEQ model presents two main advantages: (i) the computation of tray efficiencies is entirely avoided and (ii) the geometrical parameters of the column's hardware can be optimized. The minimization of the total annualized cost is submitted to three sets of constraints: the model equations, the product specification, and the tray hydraulic equations. The solution strategy for the optimization uses a combination of simulated annealing and sequential quadratic programming. Catalytic distillation of ethyl tert-butyl ether (ETBE) is considered as an illustrative example. The results of the optimization are discussed. Pre- and postoptimal sensitivity analysis is also performed.

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“…stage by stage calculations. Thery (2002) and Thery, Meyer, and Joulia (2004) proposed a sequential study for the feasibility, synthesis and design of reactive distillation process based on equilibrium reaction. Firstly, the streams outside the units are evaluated by the ∞/∞ analysis.…”

Section: Methodsmentioning

confidence: 99%

Infinite/infinite analysis as a tool for an early oriented synthesis of a reactive pressure swing distillation

Bonet

Théry

Meyer

et al. 2007

Computers & Chemical Engineering

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The study contributes to the characterization of an original reactive pressure swing distillation system. The methyl acetate (MeAc) transesterification with ethanol (EtOH) to produce methanol (MeOH) and ethyl acetate (EtAc) is shown as illustrative example. The streams outside the units are evaluated by the ∞/∞ analysis to provide insights on the process behavior. Two simpler systems with recycling stream are also presented. The ∞/∞ analysis allows checking the interrelation of the system streams without any column design consideration. Unfeasible regions, low limit values, multiplicity regions, discontinuities, control difficulties, recommendable operation conditions and column profile combinations are predicted and discussed. All these information are useful to establish an early and suitable system design strategy.

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Analyse de faisabilité, synthèse et conception des procédés de distillation réactive : état de l'art et analyse critique

Cited by 11 publications

References 71 publications

Vapour reactive distillation process for hydrogen production by HI decomposition from HI–I2–H2O solutions

Vapour reactive distillation process for hydrogen production by HI decomposition from HI–I2–H2O solutions

A Mixed Integer Nonlinear Programming Formulation for Optimal Design of a Catalytic Distillation Column Based on a Generic Nonequilibrium Model

Infinite/infinite analysis as a tool for an early oriented synthesis of a reactive pressure swing distillation

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