Mass transfer characteristics in a rotating packed bed with split packing

Liu, Youzhi; Gu, Deyin; Xu, Chengcheng; Qi, Guisheng; Jiao, Weizhou

doi:10.1016/j.cjche.2014.09.051

Cited by 28 publications

(14 citation statements)

References 22 publications

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“…Unsplit packing configuration for RPB(Luo et al, 2012b) Split packing configuration for RPB(Liu et al, 2015) 3.2 Results and discussionThe results inFigures 4 and 5show that the predictions withLuo et al (2012a) correlation provide the best agreement with experimental data. Modified Onda et al (1968) correlation with "g" term replaced by " " term…”

mentioning

confidence: 86%

“…In the literature, effective interfacial area data for RPB have been derived from measurements of CO2 absorption in NaOH solutions (Munjal et al, 1989b;Chen et al, 1997;Chen et al, 1999;Yang et al, 2011;Luo et al, 2012a;Guo et al, 2014Liu et al, 2015;Tsai and Chen, 2015;Luo et al, 2017) based on the approach proposed by Sharma and Danckwerts (1970). The reported data are mainly packing effective interfacial area; a few studies (Yang et al, 2011;Guo et al, 2014;Luo et al, 2017) reported the effective interfacial area for the different mass transfer zones, namely the packing, cavity and the end zones.…”

Section: Experimental Data and Correlationsmentioning

confidence: 99%

“…The packing is held between two disks and rotated by a single motor. and Liu et al (2015) on the other hand are based on split packing configuration, a relatively new packing design for RPBs. The split packing configuration comprise of alternate annular packing rings attached to two separate disks with a small radial gap between adjacent rings when the two disks are brought together (Figure 3) with the disks rotated by two separate motors counter-currently or co-currently.…”

Section: Experimental Data and Correlationsmentioning

confidence: 99%

See 2 more Smart Citations

Study of mass transfer correlations for rotating packed bed columns in the context of solvent-based carbon capture

Oko

Wang

Ramshaw

2019

International Journal of Greenhouse Gas Control

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The application of rotating packed beds (RPBs) in solvent-based carbon capture processes, will greatly reduce the physical footprint, capital and operating cost of the process. However, in designing RPBs, correlations for predicting mass transfer parameters are generally limited in literature and their prediction accuracies have not been demonstrated independently. In this paper, an RPB absorber model was developed in gPROMS ModelBuilder ® and used to test and compare different correlations for predicting the effective interfacial area, liquid and gas film mass transfer coefficients. Our results showed that the modified packed column mass transfer correlations where the "g" term (i.e. gravitational acceleration) replaced with "rw 2 " (i.e. centrifugal acceleration) commonly used in literature for RPBs generally give poor predictions compared to using correlations developed specifically for RPBs. Also, the Tung and Mah correlation has better predictive accuracy for the liquid film mass transfer coefficient in RPBs than more complex correlations. Finally, a set of new data for the gas film mass transfer coefficient for RPBs were also derived from overall volumetric mass transfer coefficient () experimental data from literature. This is the first report of gas film mass transfer data for RPBs. The results in this paper will guide researchers in selecting suitable correlations for predicting mass transfer parameters in RPBs.

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confidence: 86%

Section: Experimental Data and Correlationsmentioning

confidence: 99%

Section: Experimental Data and Correlationsmentioning

confidence: 99%

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Study of mass transfer correlations for rotating packed bed columns in the context of solvent-based carbon capture

Oko

Wang

Ramshaw

2019

International Journal of Greenhouse Gas Control

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“…Similar studies have been performed to determine the effective mass transfer area for unstructured filler (Raschig metal rings, nominal diameter 20-70 mm) using chemical absorption [2]. In [3][4][5][6][7], the effective surface area of the rotating filtering packing section has been determined. The influence of the packing radial thickness, the rotational speed, and the liquid and gas volume flow rate on the effective interface has been also studied.…”

Section: Literature Reviewmentioning

confidence: 99%

Identification of the Interfacial Surface in Separation of Two-Phase Multicomponent Systems

et al. 2020

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The area of the contact surface of phases is one of the main hydrodynamic indicators determining the separation and heat and mass transfer equipment calculations. Methods of evaluating this indicator in the separation of multicomponent two-phase systems were considered. It was established that the existing methods for determining the interfacial surface are empirical ones, therefore limited in their applications. Consequently, the use of the corresponding approaches is appropriate for certain technological equipment only. Due to the abovementioned reasons, the universal analytical formula for determining the interfacial surface was developed. The approach is based on both the deterministic and probabilistic mathematical models. The methodology was approved on the example of separation of two-phase systems considering the different fractional distribution of dispersed particles. It was proved that the area of the contact surface with an accuracy to a dimensionless ratio depends on the volume concentration of the dispersed phase and the volume of flow. The separate cases of evaluating the contact area ratio were considered for different laws of the fractional distribution of dispersed particles. As a result, the dependence on the identification of the abovementioned dimensionless ratio was proposed, as well as its limiting values were determined. Finally, a need for the introduction of the correction factor was substantiated and practically proved on the example of mass-transfer equipment.

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“…Durante as últimas três décadas, colunas rotativas ou RPB (do inglês, Rotating Packed Bed) foram empregados para obter absorção (Zhang et al, 2011), dessorção (Majeed et al, 2007), destilação (Luo et al, 2012), desvolatilização de polímeros (Chen et al, 2010), precipitação reativa (Chen et al, 2000), produção de nanopartículas de captura de CO2 utilizando o processo de absorção em colunas rotativas com soluções aquosas de MEA (Joel, 2014), etanolamina (Yeh;Pennlie, 2001) ou NaOH (Liu, 2015), por exemplo.…”

Section: Introductionunclassified

Desenvolvimento E Avaliação De Uma Coluna De Leito Rotativo Na Absorção De Dióxido De Carbono Com Hidróxido De Sódio

Oliveira¹,

Carvalho²,

Vieira³

et al. 2017

Blucher Chemical Engineering Proceedings

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RESUMO -As colunas de recheio rotativo, denominadas Higee, permitem o aumento da capacidade e eficiência de um processo, comparado a uma coluna convencional. A principal proposta deste trabalho é desenvolver e a avaliar uma coluna de leito estruturado rotativo para a absorção de gás carbônico por uma solução de hidróxido de sódio 1M, a partir da eficiência de captura de CO2, da área interfacial efetiva (ae) e do coeficiente volumétrico gasoso de transferência de massa (kGA), aplicando a tecnologia Higee. Assim como, avaliar a influência da velocidade de rotação e das vazões de gás e líquido. A absorção de CO2 na solução de NaOH foi determinada a partir da titulação com HNO3 1M. Foram testadas velocidades de rotação de 300, 1050 e 1800 rpm, vazões de CO2 de 4, 6 e 8 L.min -1 e vazões de NaOH de 0,5, 0,75 e 1 L.min -1 . Os resultados obtidos confirmam que o aumento da velocidade de rotação, aumentou a eficiência, a ae, o kGA, e, consequentemente, o contato entre as fases. A proporção direta também se observou entre a vazão de gás e os valores de ae e kGA. As maiores eficiências foram obtidas nas menores vazões de CO2 e NaOH, 4 L.min -1 e 0,5 L.min -1respectivamente, e na maior velocidade de rotação, 1800 rpm.

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Mass transfer characteristics in a rotating packed bed with split packing

Cited by 28 publications

References 22 publications

Study of mass transfer correlations for rotating packed bed columns in the context of solvent-based carbon capture

Study of mass transfer correlations for rotating packed bed columns in the context of solvent-based carbon capture

Identification of the Interfacial Surface in Separation of Two-Phase Multicomponent Systems

Desenvolvimento E Avaliação De Uma Coluna De Leito Rotativo Na Absorção De Dióxido De Carbono Com Hidróxido De Sódio

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