Gas–Liquid Mass Transfer Characteristics in a Gas–Liquid–Solid Bubble Column under Elevated Pressure and Temperature

Jin, Haibo; Yang, Suohe; He, Guangping; Liu, Delin; Tong, Zemin; Zhu, Jianhua

doi:10.1016/j.cjche.2014.06.019

Cited by 31 publications

(27 citation statements)

References 27 publications

(36 reference statements)

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“…Ultimately the M a n u s c r i p t 20 two effects cancel each other out and k L appears constant in this pressure range. These trends and explanations are also reported by Jin et al (2014) with another paraffin (μ L = 4 mPa.s). Dewes et al (1995) also observe no effect of pressure on the k L .…”

Section: Figuresupporting

confidence: 80%

“…At high viscosity no effect is observed. However this is in contradiction with Jin et al (2014) who observe a strong effect of u G at higher liquid viscosity (4 mPa.s) but under pressure (1.0 MPa). Some authors do not observe any effect of u G on k L because of the small u G range studied (García-Abuín et al, 2010; Yang et al, 2001).…”

Section: Working Mode Effect On Mass Transfer Propertiescontrasting

confidence: 80%

“…They also showed that the influence of pressure is higher at high superficial gas velocity. This trend is also observed by Kang et al (1999), Jin et al (2014) and Behkish et al (2002) for other viscous liquids (μ L > 2 mPa.s). A plateau for the effect of pressure at 8 MPa is observed by Behkish et al (2002) for the less viscous fluid, indicating that the effect of pressure is higher for the highest viscous fluids and superficial gas velocities.…”

Section: φ = a √((2/(m+1))k R D Mab C A *supporting

confidence: 76%

“…It may also affect positively the k L (section 3.2.3.3 for the effect of bubble size on k L ). Jin et al (2014) observe an increase of both k L and a. They also stated that a decrease of viscosity promotes molecular diffusion but they A c c e p t e d M a n u s c r i p t 21 report that this decrease may also reduce t c because of the slightly higher bubble velocities, both resulting on an increase of k L (Equation 11).…”

Section: Temperature Effect On K Lmentioning

confidence: 88%

“…Lau et al (2004), Jin et al (2014) and Yang et al (2001) studied the effect of temperature on the coefficient k L . Yang et al (2001) observed that the k L coefficient increases significantly with temperature.…”

Section: Temperature Effect On K Lmentioning

confidence: 99%

See 4 more Smart Citations

Bubble column reactors for high pressures and high temperatures operation

Leonard

Ferrasse

Boutin

et al. 2015

Chemical Engineering Research and Design

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Section: Figuresupporting

confidence: 80%

Section: Working Mode Effect On Mass Transfer Propertiescontrasting

confidence: 80%

Section: φ = a √((2/(m+1))k R D Mab C A *supporting

confidence: 76%

Section: Temperature Effect On K Lmentioning

confidence: 88%

Section: Temperature Effect On K Lmentioning

confidence: 99%

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Bubble column reactors for high pressures and high temperatures operation

Leonard

Ferrasse

Boutin

et al. 2015

Chemical Engineering Research and Design

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Effect of particles on hydrodynamics and mass transfer in a slurry bubble column: Correlation of experimental data

et al. 2022

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The effects of particle concentration and size on hydrodynamics and mass transport in an air–water slurry bubble column were experimentally studied. When the particle concentration αs increased from 0% to 20%, the averaged gas holdup decreased by ~30%, gas holdup of small bubbles and gas–liquid volumetric mass transfer coefficient decreased by up to 50%, while the gas holdup of large bubbles increased slightly. The overall effect of particle size was insignificant. A liquid turbulence attenuation model which could quantitatively describe the effects of particle concentration and size was first proposed. Semi‐empirical correlations were obtained based on extensive experimental data in a wide range of operating conditions and corrected liquid properties. The gas holdup and mass transfer coefficient calculated by the correlations agreed with the experimental data from both two‐phase and three‐phase bubble columns, with a maximum error <25%.

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Estimation of liquid‐side mass transfer coefficient and liquid film thickness in a bubble column using single spherical bubble model

Sujan

Vyas

Singh

2018

Asia-Pacific J Chem Eng

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A macroscopic mass transfer model based on the unsteady‐state liquid film mass transfer mechanism for a single spherical bubble was formulated. Analytical solution of the model equation was obtained in Laplace transform using surface renewal rates based on Danckwerts' surface age distribution function. The mass transfer coefficient, kL, in a slurry bubble column under different operating conditions of temperature, pressure, gas flow rate, and solid concentration has been simulated using a program code “BUBBLESIM” in MATLAB®, developed by the authors. The proposed model has been validated using secondary data for a slurry system under a wide range of operating conditions. The predicted values of kL show very good agreement with the experimental data within an average deviation of ±2%. The results show that the mass transfer coefficient, kL, increased with increasing superficial gas velocity and temperature and decreased with increase in slurry concentration, while it changed slightly with pressure. Based on the present work, empirical correlations have been proposed for the prediction of δ in terms of dimensionless groups for H2–, CO–, and CO2–paraffin–quartz sand systems under elevated temperatures (298–423 K) and elevated pressures (1–3 MPa) in a slurry bubble column.

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Gas–Liquid Mass Transfer Characteristics in a Gas–Liquid–Solid Bubble Column under Elevated Pressure and Temperature

Cited by 31 publications

References 27 publications

Bubble column reactors for high pressures and high temperatures operation

Bubble column reactors for high pressures and high temperatures operation

Effect of particles on hydrodynamics and mass transfer in a slurry bubble column: Correlation of experimental data

Estimation of liquid‐side mass transfer coefficient and liquid film thickness in a bubble column using single spherical bubble model

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