A multi-scale approach for CFD calculations of gas–liquid flow within large size column equipped with structured packing

Raynal, Ludovic; Royon-Lebeaud, Aude

doi:10.1016/j.ces.2007.08.010

Cited by 139 publications

(91 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Petre et al (2003) suggested a criss-crossing channel element. Raynal and Royon-Lebeaud (2007) and Said et al (2011) proposed a geometry with periodic conditions at all cut boundaries. In this work, the second type of REU was considered.…”

Section: Pressure Dropmentioning

confidence: 99%

“…Raynal et al (2004) performed 2D CFD simulations with the VOF method to determine the liquid film thickness on a wavy plate similar to the packing surface, and the results were used to derive the liquid hold-up. Raynal and Royon-Lebeaud (2007) used the same VOF method for gas-liquid flow simulations on a small scale and the results are further used on a large scale in three-dimensional calculations with a geometry corresponding to a complete packed column. Ataki and Bart (2006) investigated the wetting in the structured packing elements of Rombopack using the same VOF method and used simulation results to develop correlations for the effective area and liquid hold-up.…”

Section: Structured Packing Characterisation By Using Cfdmentioning

confidence: 99%

“…In the last decade, CFD has been used more and more to calculate flow characteristics in packed beds (Petre et al, 2003;Raynal and Royon-Lebeaud, 2007;Mohamed Ali et al, 2003). Indeed, the use of numerical simulation can provide a significant gain in time and could limit the number of experiments.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Use of Computational Fluid Dynamics for Absorption Packed Column Design

Haroun

Raynal

2015

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

View full text Add to dashboard Cite

-Computational Fluid Dynamics (CFD) is today commonly used in a wide variety of process industries and disciplines for the development of innovative technologies. The present article aims to show how CFD can be used as an effective analysis and design tool for the development and design of packed gas/liquid absorption columns. It is first shown how CFD can be used for the characterisation of packings. The different hydrodynamic and mass transfer design parameters are investigated and adapted CFD methods are suggested. Secondly, column distribution internal development is discussed to show how CFD simulations should be performed to improve the design of gas and liquid distributors. An example of the development of new distribution technologies for floating installation of a reactive absorption column is also presented.Résumé -Utilisation de la dynamique des fluides numérique pour le design des colonnes d'absorption à garnissages -La dynamique des fluides numérique (Computational Fluid Dynamics, CFD) est aujourd'hui couramment utilisée pour le développement de technologies innovantes dans de nombreux domaines et procédés industriels. Cet article a pour objectif de montrer comment la CFD peut être utilisée comme outil d'analyse et de dimensionnement pour le développement des colonnes d'absorption gaz-liquide à garnissages. En premier, il est présenté comment la CFD peut être utilisée pour caractériser les différents paramètres de dimensionnement d'un garnissage (hydrodynamique et transfert). Les méthodes CFD appropriées sont suggérées et discutées. En second, l'utilisation de la CFD pour le développement et l'optimisation des internes de distribution gaz-liquide est exposée. Un exemple de développement par CFD d'une nouvelle technologie de distribution pour une colonne d'absorption réactive sur une installation flottante offshore est présenté.

show abstract

Section: Pressure Dropmentioning

confidence: 99%

Section: Structured Packing Characterisation By Using Cfdmentioning

confidence: 99%

See 1 more Smart Citation

Use of Computational Fluid Dynamics for Absorption Packed Column Design

Haroun

Raynal

2015

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

View full text Add to dashboard Cite

show abstract

“…Indeed, CFD is more and more used to calculate flow characteristics in packed beds. In recent years, several works have been published in the literature, which deal with the CFD simulations in structured packings (Petre et al, 2003;Raynal et al, 2004;Ataki, 2006;Raynal and Royon-Lebeaud, 2007;Haroun et al,2010aHaroun et al, ,b, 2012. These works show that CFD can be an interesting tool in addition to experimental works to determine local hydrodynamics parameters as pressure drop, liquid holdup, wetting quality, and mass transfer coefficients.…”

Section: Cfd Modeling For Future Geometriesmentioning

confidence: 99%

Pressure Drop, Capacity and Mass Transfer Area Requirements for Post-Combustion Carbon Capture by Solvents

Lassauce

Alix

Raynal

et al. 2014

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

Self Cite

View full text Add to dashboard Cite

Re´sume´-Pertes de charge, capacite´et aires de transfert de matie`re requises pour le captage du CO 2 en post-combustion par solvants -Les proce´de´s de captage en post-combustion utilisant des amines sont conside´re´s comme l'une des options pre´fe´re´es pour le captage et le stockage du CO 2 (CSC, CO 2 Capture and Storage). Cependant, le couˆt du CO 2 e´vite´est tre`s important et doit eˆtre re´duit. Ce couˆt est fortement lie´aux designs des colonnes, qui doivent, par conse´quent, eˆtre optimise´es. Dans cet article, les performances hydrodynamiques et le transfert de matie`re de garnissages vrac et structure´s sont discute´s en terme de perte de charge, de capacite´et, le plus important, en terme de coefficients de transfert de matie`re, notamment l'aire interfaciale, parame`tre le plus important pour la conception d'absorbeurs de CO 2 . La comparaison de diffe´rents garnissages commerciaux a`haute efficacite´est discute´e a`partir de caracte´risations expe´rimentales et de simulations CFD et une me´thodologie pour de futurs de´veloppements est propose´e.Abstract -Pressure Drop, Capacity and Mass Transfer Area Requirements for Post-Combustion Carbon Capture by Solvents -Post-combustion capture processes using amines are considered as one of the preferred options for CO 2 Capture and Storage (CCS). However, the cost of avoided CO 2 is very large and must be reduced. The latter cost is strongly linked with column designs which consequently must be optimized. In the present article, hydrodynamics and mass transfer performances of random and structured packings are discussed in terms of pressure drop, capacity and most importantly in terms of mass transfer parameters, in particular in terms of interfacial area which is the most important parameter for CO 2 absorbers design. Comparison of different commercial high efficiency packings is discussed from experimental characterization and from CFD simulations and a methodology for future developments is proposed.

show abstract

“…Second, the latter results are used in three-dimensional calculations run on a mesoscale corresponding to a periodic element representative of the real packing geometry. Last, those results are further used on a large scale in three-dimensional calculations with a geometry corresponding to a complete column [21].…”

Section: Introductionmentioning

confidence: 99%

Comparison of Separation Performance of a Structured Packed Column with a Tray-Type Column for H₂S and CO₂

Baniadam

Fathikalajahi

Rahimpour

2009

Oil & Gas Science and Technology - Rev. IFP

View full text Add to dashboard Cite

Résumé -Comparaison des performances de séparation d'une colonne à garnissage structurée avec celles d'une colonne à plateaux pour l'H 2 S et le CO 2 -L'absorption de gaz acides, H 2 S et CO 2 , par la méthyldiéthanolamine dans une colonne à garnissage structure équipée du Montz-Pak A3-500 a été modélisée mathématiquement. Les dimensions des canaux ainsi que leur nombre et le modèle d'écoulement du film liquide sont similaires à ceux des travaux de Shilkin. Les équations de transfert de la chaleur et de la masse sont dérivées pour le film liquide de réaction et le gaz qui s'écoule à contrecourant dans la colonne. La répartition de la concentration est calculée sur tout le film liquide en mouvement et aucune zone présentant des conditions de concentration équilibrée n'est prise en compte dans le liquide réactif. Les résultats du modèle pour la colonne structurée montrent de meilleures performances d'absorption du H 2 S qu'avec une colonne à plateaux dans les mêmes conditions. Les résultats obtenus par le modèle indiquent une répartition appréciable de la répartition de la concentration et de la température le long de la colonne. Abstract -Comparison of Separation Performance of a Structured Packed Column with a Tray-Type

show abstract

A multi-scale approach for CFD calculations of gas–liquid flow within large size column equipped with structured packing

Cited by 139 publications

References 14 publications

Use of Computational Fluid Dynamics for Absorption Packed Column Design

Use of Computational Fluid Dynamics for Absorption Packed Column Design

Pressure Drop, Capacity and Mass Transfer Area Requirements for Post-Combustion Carbon Capture by Solvents

Comparison of Separation Performance of a Structured Packed Column with a Tray-Type Column for H₂S and CO₂

Contact Info

Product

Resources

About

A multi-scale approach for CFD calculations of gas–liquid flow within large size column equipped with structured packing

Cited by 139 publications

References 14 publications

Use of Computational Fluid Dynamics for Absorption Packed Column Design

Use of Computational Fluid Dynamics for Absorption Packed Column Design

Pressure Drop, Capacity and Mass Transfer Area Requirements for Post-Combustion Carbon Capture by Solvents

Comparison of Separation Performance of a Structured Packed Column with a Tray-Type Column for H2S and CO2

Contact Info

Product

Resources

About

Comparison of Separation Performance of a Structured Packed Column with a Tray-Type Column for H₂S and CO₂