Liquid jet impaction on the single‐layer stainless steel wire mesh in a rotating packed bed reactor

Xu, Ying-Chun; Li, Yanbin; Liu, Ya‐Zhao; Luo, Yong; Chu, Guang‐Wen; Zhang, Liang‐Liang; Chen, Jianfeng

doi:10.1002/aic.16597

Cited by 57 publications

(29 citation statements)

References 35 publications

(68 reference statements)

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“…This is based on the assumption that all liquid is covered on the surface of the wire mesh in the form of film. This is because most of the liquid exists in the form of film in RPBs with stainless steel wire mesh, 16,22 and it is difficult to obtain the precise ratio of liquid films, droplets, and ligaments. Therefore, for the gas–liquid interaction:

τ goodbreak= 1 goodbreak+ \frac{α_{S} + α_{L}}{2}, d'_{w} goodbreak= \frac{4 α_{S}}{a'_{S}}, v_{e} goodbreak= \frac{((), v_{G} goodbreak- v_{L}) τ}{α_{G} \cos ((), β)}, D_{h} goodbreak= \frac{4 α_{G}}{a_{normalS}^{'}},

a_{s}^{'} goodbreak= {(\frac{ε_{L} + ε_{S}}{ε_{normalS}})}^{\frac{1}{2}} a_{s},

where

α_{G}

α_{L}

, and

α_{S}

are the volume fraction of the gas, liquid, or solid phase;

d'_{w}

is the wire and liquid film diameter;

a_{s}^{'}

is the specific surface area of the wet wires.…”

Section: Model Developmentmentioning

confidence: 99%

“…However, it is challenging to simulate gas–liquid flow in a full three‐dimensional (3D) RPB model using the volume of fluid (VOF) method, because even a small RPB requires large computational resources and a long computational time. For example, as shown in Xu's work, to achieve a good resolution of the flow pattern, the computational domain of a single layer of wire mesh packing requires more than 8M computational grids 22 . Recently, we established a 3D sector RPB model with a central angle of 45°, an inner radius of 19 mm, an outer radius of 32.75 mm, and a height of 5.12 mm 23 .…”

Section: Introductionmentioning

confidence: 99%

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Modeling of gas–liquid flow in a rotating packed bed using an Eulerian multi‐fluid approach

Zhang

Xie²,

et al. 2022

AIChE Journal

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Rotating packed beds (RPBs) are ideal candidates for CO2 removal from offshore natural gas due to their good mass transfer performance and significant volume savings. This article proposes an Eulerian multi‐fluid approach to simulate the gas–liquid flow in RPBs. Three new multiphase drag force models are constructed based on single‐phase drag force models for wire mesh packings. Based on the Eulerian multi‐fluid approach, a new RPB simulation framework is developed. The predicted results using the new simulation framework with the new drag force models are compared with the experimental data. When using the Kołodziej model and the modified Kołodziej model, the predicted overall liquid holdup shows good agreement with the experimental data with errors less than 20%. In addition, the pressure drop predicted by these three models are reasonable compared with the experimental data. This work lays a foundation for RPB simulation of gas–liquid flow using Eulerian multi‐fluid approach.

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τ goodbreak= 1 goodbreak+ \frac{α_{S} + α_{L}}{2}, d'_{w} goodbreak= \frac{4 α_{S}}{a'_{S}}, v_{e} goodbreak= \frac{((), v_{G} goodbreak- v_{L}) τ}{α_{G} \cos ((), β)}, D_{h} goodbreak= \frac{4 α_{G}}{a_{normalS}^{'}},

a_{s}^{'} goodbreak= {(\frac{ε_{L} + ε_{S}}{ε_{normalS}})}^{\frac{1}{2}} a_{s},

where

α_{G}

α_{L}

, and

α_{S}

are the volume fraction of the gas, liquid, or solid phase;

d'_{w}

is the wire and liquid film diameter;

a_{s}^{'}

is the specific surface area of the wet wires.…”

Section: Model Developmentmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Modeling of gas–liquid flow in a rotating packed bed using an Eulerian multi‐fluid approach

Zhang

Xie²,

et al. 2022

AIChE Journal

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“…According to this table, it is clear that the obstacle, VOF and realizable models were more attractive to, and more widely applied by, researchers. [197] Real 3D Single phase Realizable k-ε SIMPLE C/PRESTO Gas flow characteristics analysis [198] DPM: Lagrange discrete phase mode.…”

Section: Methodsmentioning

confidence: 99%

A Review of Modeling Rotating Packed Beds and Improving Their Parameters: Gas–Liquid Contact

2021

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The aim of this review is to investigate a kind of process intensification equipment called a rotating packed bed (RPB), which improves transport via centrifugal force in the gas—liquid field, especially by absorption. Different types of RPB, and their advantages and effects on hydrodynamics, mass transfer, and power consumption under available models, are analyzed. Moreover, different approaches to the modeling of RPB are discussed, their mass transfer characteristics and hydrodynamic features are compared, and all models are reviewed. A dimensional analysis showed that suitable dimensionless numbers could make for a more realistic definition of the system, and could be used for prototype scale-up and benchmarking purposes. Additionally, comparisons of the results demonstrated that Re, Gr, Sc, Fr, We, and shape factors are effective. In addition, a study of mass transfer models revealed that the contact zone was the main area of interest in previous studies, and this zone was not evaluated in the same way as packed beds. Moreover, CFD studies revealed that the realizable k-ε turbulence model and the VOF two-phase model, combined with experimental reaction or mass transfer equations for analyzing hydrodynamic and mass transfer coefficients, could help define an RPB system in a more realistic way.

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“…30 Moreover, the vertical fibers acted a dominant part in liquid breakup with a shearing action. 31 CFVO has more vertical fibers along the radial direction, which not only led to a higher possibility of collision between liquid and packing but also gained a higher powerful cutting ability on liquid. All of these are beneficial to increase the mass transfer coefficients.…”

Section: Methodsmentioning

confidence: 99%

Novel Wire Mesh Packing with Controllable Cross-Sectional Area in a Rotating Packed Bed: Mass Transfer Studies

Wen

Luo

et al. 2020

Ind. Eng. Chem. Res.

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Wire mesh packing has been extensively utilized in laboratory and industry applications in rotating packed bed (RPB) because of the high mass transfer performance and low cost. Conventional wire mesh packings formed by the coiling meshes with constant porosity have an increasing cross-sectional area along the radial direction, which affects the fluid flow behavior and mass transfer performance. Herein, wire mesh packings with controllable cross-sectional area were designed and rapidly fabricated using the three-dimensional (3D) printing technology. Gas–liquid mass transfer efficiencies of wire mesh packings with various structures and cross-sectional areas were evaluated. The gas–liquid effective interfacial area (a e) and liquid-side volumetric mass transfer coefficient (k L a e) of the concentric wire mesh packing with constant cross-sectional area were, respectively, 25.5 and 14.7% higher than those of the coiled one with increasing cross-sectional area. The correlations for prediction of a e and k L a e, considering previous and current data, were respectively established with acceptable deviations.

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Liquid jet impaction on the single‐layer stainless steel wire mesh in a rotating packed bed reactor

Cited by 57 publications

References 35 publications

Modeling of gas–liquid flow in a rotating packed bed using an Eulerian multi‐fluid approach

Modeling of gas–liquid flow in a rotating packed bed using an Eulerian multi‐fluid approach

A Review of Modeling Rotating Packed Beds and Improving Their Parameters: Gas–Liquid Contact

Novel Wire Mesh Packing with Controllable Cross-Sectional Area in a Rotating Packed Bed: Mass Transfer Studies

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