CFD of multiphase flow in packed‐bed reactors: I. <i>k</i>‐Fluid modeling issues

Jiang, Yi; Khadilkar, M. R.; Al‐Dahhan, Muthanna H.; Duduković, Milorad P.

doi:10.1002/aic.690480406

Cited by 104 publications

(90 citation statements)

References 58 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In CFD simulations of packed-bed reactors, the discrete particle approach is largely adopted (Dixon, Nijemeisland, & Stitt, 2006), allowing simulation of an interstitial flow between particles accounting for the geometric complexity of the packing structure. In this method, a volumeof-fluid (VOF) model is incorporated into the Eulerian-Eulerian approach so that the surface between phases can be tracked in the simulations (Jiang, Khadilkar, Al-Dahhan, & Dudukovic, 2002a -Ferreira, 2010b). Great efforts have been made by Quinta-Ferreira and coworkers who use a highresolution CFD simulation approach involving two moving phases (Lopes, Silva, & Quinta-Ferreira, 2007;Lopes & Quinta-Ferreira, 2010a;Lopes & Quinta-Ferreira, 2010b).…”

Section: Introductionmentioning

confidence: 98%

Numerical study of liquid coverage in a gas–liquid–solid packed bed

Zhang

et al. 2015

Particuology

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 98%

Numerical study of liquid coverage in a gas–liquid–solid packed bed

Zhang

et al. 2015

Particuology

View full text Add to dashboard Cite

“…(2) is not significant. This assumption has also been used by other authors (e.g., Jiang et al, 2002a). …”

Section: Model Equationsmentioning

confidence: 72%

“…In addition to this, despite increasing computational power and development of computational fluid dynamics (CFD) and its extensive applications to the modeling of multiphase flow in TBR (Jiang et al, 2002a(Jiang et al, , 2002bGunjal et al, 2003Gunjal et al, , 2005Atta et al, 2007aAtta et al, , 2007b, to the best of our knowledge, a CFD based model to predict the hydrodynamics of two-phase flow in TBR operating at high pressure is yet to be reported. Therefore, with the current interest in numerical prediction of hydrodynamics of trickle-bed reactors operating at high pressures, in this article we propose to employ our previously established CFD model (Atta et al, 2007a) for this purpose.…”

Section: Introductionmentioning

confidence: 99%

CFD Prediction of Hydrodynamics in High-Pressure Trickle Bed Reactor

Atta

Roy

Nigam

2009

J. Chem. Eng. Japan

View full text Add to dashboard Cite

Most commercial trickle-bed reactors (TBRs) normally operate at high pressures. This study presents the initial development of a comprehensive CFD based model to predict pressure drop and liquid saturation in TBRs under high pressure. A two-phase Eulerian CFD model envisaging the flow domain as porous region for evaluating these hydrodynamic parameters even for high pressure operations, has been proposed. Evaluation of model predictions have been carried out with reported experimental data, collected under varied set of operating conditions. All the comparisons lead to the favorable implementation this less computationally intensive, yet first-principle based CFD model to forecast the two-phase pressure drop and liquid saturation for TBRs operating at high pressures.

show abstract

“…[31][32][33] Their main difference compared with the fluidized beds 34 is that solid particles are fixed in the reactor. Thus, it is difficult to describe fluid flow in detail among packed particles because of the complex geometrical structure.…”

Section: Discussionmentioning

confidence: 98%

Optimization and simulation of the Sabatier reaction process in a packed bed

et al. 2016

View full text Add to dashboard Cite

The Sabatier reaction in a testing packed bed was investigated experimentally and theoretically, and was used to convert waste carbon dioxide and hydrogen to provide needed water for closing the life-support loop on orbit in space. A three-dimensional model including fluid flow, gas dispersion, heat and mass transfer, and chemical reaction was developed by coupling some semi-empirical correlated equations in chemical engineering science into computational fluid dynamics theory. Good agreements between the simulating results and experimental data for the effect of some parameters on reaction verified this model, for example, heat exchange between reactor and atmosphere, the material property of reactor, the catalyst deactivated and gas mass flux and so on. By using this model as the designing tools, an optimized packed bed is proposed. Compared with the testing packed bed, the relevant reactor length can be reduced from 220 to 150 mm with the same hydrogen conversion and lower pressure drop. V C 2016 American Institute of Chemical Engineers AIChE J, 00: 000-000, 2016

show abstract

CFD of multiphase flow in packed‐bed reactors: I. k‐Fluid modeling issues

Cited by 104 publications

References 58 publications

Numerical study of liquid coverage in a gas–liquid–solid packed bed

Numerical study of liquid coverage in a gas–liquid–solid packed bed

CFD Prediction of Hydrodynamics in High-Pressure Trickle Bed Reactor

Optimization and simulation of the Sabatier reaction process in a packed bed

Contact Info

Product

Resources

About