Structure optimization of an internal circulation rotating packed bed for the circulation liquid flow improvement: Numerical study

Su, Lin-Xin; Liu, Zhi-Hao; Li, Yanbin; Xu, Han-Zhuo; Sun, Baochang; Chu, Guang‐Wen

doi:10.1016/j.cep.2022.108992

Cited by 2 publications

(2 citation statements)

References 25 publications

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“…They found that the use of the disk-distributor remarkably increases the liquid holdup, residence time, and wetting efficiency of a high-viscosity liquid in the packing zone. Su et al 28 improved the circulation of a liquid flow in an RPB with internal circulation by structure optimization.…”

Section: Introductionmentioning

confidence: 99%

“…CFD simulation allows the generation of data and images that give detailed insights in hydrodynamics to help analyze the complex flow behavior of various physical and chemical processes. Some studies have reported the application of CFD in the design of gas–liquid reactors with a rotating gas–liquid layer. ,− Wu et al investigated the hydrodynamics and mass transfer in a rotating packed bed (RPB) with multiple liquid inlets using a CFD model. It was found that the use of multiple liquid inlets is beneficial for PI as it improves the gas–liquid mass-transfer efficiency.…”

Section: Introductionmentioning

confidence: 99%

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Design and Optimization of Gas–Liquid Vortex Unit Using Computational Fluid Dynamics (CFD) Simulation

Chen,

Malego,

Van Geem

et al. 2023

Ind. Eng. Chem. Res.

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Due to the exceptional multiphase mixing and mass transfer performance, gas–liquid vortex units (GLVUs) have great potential for solvent-based applications such as CO2 capture. The high gas flow rates needed to provide the energy input for creating the centrifugal field negatively influence the contact between phases and the efficiency of the GLVU. To address this issue, computational fluid dynamics (CFD) simulations are used to optimize the design of the GLVU geometry and its operating conditions. The gas–liquid flow characteristics, contact time, and total energy consumption in different GLVU geometries are analyzed. The effects of geometrical changes including reactor shape, reactor volume, and gas–liquid inlet configuration are investigated. In the optimized GLVU designs, the gas–liquid contact time is increased by more than a factor of 3, while the energy consumption is reduced by 85%, compared to the base case. Structural optimization of a GLVU is an effective route to improve the gas–liquid contact time. The use of CFD significantly accelerates the optimization of the design of a GLVU geometry for subsequent manufacturing.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design and Optimization of Gas–Liquid Vortex Unit Using Computational Fluid Dynamics (CFD) Simulation

Chen,

Malego,

Van Geem

et al. 2023

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

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An efficient technology for dye intermediate production: Process intensification of catalytic hydrogenation of aromatic nitrocompounds in a rotating packed bed reactor

Zhang,

Zhou,

Zheng

et al. 2024

AIChE Journal

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The rotating packed bed (RPB) is suitable for catalytic hydrogenation of aromatic nitrocompounds whose reaction rate is limited by the mass transfer rate. However, the matching mechanism between the mass transfer rate and intrinsic reaction rate in the RPB reactor is still unclear. In this work, the matching relationship in the RPB reactor is studied by combining the characteristics of mass transfer and reaction in detail. Effects of various operating conditions on the gas–liquid mass transfer coefficient up to 0.31/s, under working conditions were studied and the mass transfer correlation was proposed. The hydrogenation of p‐nitroanisole was used as a probe reaction to analyze the matching mechanism. Various aromatic nitrocompounds in the RPB and stirred tank reactors were investigated. The reaction efficiency of the former is 5–20 times that of the latter, which further explained the universality of the matching mechanism in the RPB reactor.

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Structure optimization of an internal circulation rotating packed bed for the circulation liquid flow improvement: Numerical study

Cited by 2 publications

References 25 publications

Design and Optimization of Gas–Liquid Vortex Unit Using Computational Fluid Dynamics (CFD) Simulation

Design and Optimization of Gas–Liquid Vortex Unit Using Computational Fluid Dynamics (CFD) Simulation

An efficient technology for dye intermediate production: Process intensification of catalytic hydrogenation of aromatic nitrocompounds in a rotating packed bed reactor

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