Mass transfer enhancement in a two-phase flow electrochemical reactor

Vijay, M.; Sarma, G. V. S.; Deepthi, D. U. S. L.; Ramesh, K.

doi:10.1016/j.matpr.2019.11.258

Cited by 2 publications

(2 citation statements)

References 2 publications

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“…Vijay et al [10] reported that with inverse cone promoter element in gas liquid upflow columns, the fluctuation in limiting current values in axial direction of fluid flow fell within ±21% about the mean.…”

Section: Longitudinal Variation Of Mass Transfer Coefficientmentioning

confidence: 99%

“…Some promoters that were employed in three phase fluidized beds were helicoidal tapes [1], string of discs [2], twisted tapes [3], string of angled discs [4], string of spheres [5], string of hemispheres [6] and string of doublecones [7]. It was also observed that string of cones yielded significant enhancement in as-liquid flow systems [8][9][10]. Therefore, in the present work, string of cones were employed as turbulent promoters in three-phase fluidized bed electrochemical reactors.…”

Section: Introductionmentioning

confidence: 99%

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Electro Winning from Dilute Solutions at Enhanced Rates using Three-Phase Flow Reactor

Kishore*,

Vijay,

Reddy

et al. 2020

IJITEE

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Enhancement of mass transfer coefficient is highly desirable for economic design of process equipment. The present study is essentially carried out to know the effect of flow variables such as gas and liquid velocities and geometric parameters of the internal on mass transfer coefficients in a three phase fluidized bed. The mass transfer coefficient data were obtained using a string of cones internal in a three-phase fluidized bed electrochemical reactor. The flow system investigated was nitrogen, a fluid electrolyte and spherical glass beads as gas, liquid and solid phases respectively. Limiting current technique was employed to obtain mass transfer data. The internal comprises of a string of cones arranged concentrically on a central rod which is placed coaxially in a three phase fluidized bed. The presence of internal in three phase fluidized beds augmented the mass transfer coefficient significantly. In the present investigation it was found that the effect of gas velocity, liquid velocity, rod diameter and cone diameter was only marginal. However, the influence of pitch, half apex angle of cone and particle diameter was found to be significant. Correlations were developed based on least squares regression analysis for the prediction of mass transfer coefficient in terms of pertinent variables

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Section: Longitudinal Variation Of Mass Transfer Coefficientmentioning

confidence: 99%