Computational Strategies for Sizing Liquid−Liquid Extractors

Kumar, Arun; Hartland, S.

doi:10.1021/ie980455l

Cited by 28 publications

(24 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Several correlations for rigid drops are described in the literature [2]. However, in this work, only the most recent ones have been implemented in the code, which is capable of selecting the most appropriate of them according to criteria expressed in terms of dimensionless numbers such as Pe c , Re and Sc.…”

Section: Correlations For Rigid Dropsmentioning

confidence: 99%

See 1 more Smart Citation

Model Assessment for the Prediction of Mass Transfer Coefficients in Liquid‐Liquid Extraction Columns

et al. 2007

View full text Add to dashboard Cite

A large number of theories are reported in the literature for the calculation of individual mass transfer coefficients and each has a well defined application range, which depends on the nature of the continuous and the dispersed phases. Each theory is also based on a different transfer mode, e.g., the dispersed phase depends essentially on the drop behavior, which is directly related to the drop size. However, an accurate determination of the overall mass transfer coefficient depends upon the choice of the combination of theories to be used for the calculation of the individual mass transfer coefficients, i.e., for the continuous and dispersed phases. In the present work, different combinations for the calculation of the overall mass transfer coefficient have been tested for the commonly recommended Acetone/Toluene/Water system, which is characterized by relatively large drop sizes.

show abstract

Section: Correlations For Rigid Dropsmentioning

confidence: 99%

“…Several correlations and models are reported in the literature for the case of oscillating drops [2], and no specific conditions are imposed for their use. Therefore in this work, the Garner correlation, has been chosen and is expressed as follows: …”

Section: Correlations For Oscillating Dropsmentioning

confidence: 99%

Model Assessment for the Prediction of Mass Transfer Coefficients in Liquid‐Liquid Extraction Columns

et al. 2007

View full text Add to dashboard Cite

show abstract

“…However, due to the complex nature of the extraction process, the design procedures and practices (correlations) are not yet well established and usually pilot scale testing is required for such columns. Although some advanced modeling techniques [29][30][31][32][33][34] are currently acclaimed, however, for the reliable design strategies and computer methods to be well developed, more of such experimental studies (relationships among the column efficiency and operating parameters) on a pulsed sieve-plate column have to be accomplished for the various geometries and liquidliquid systems. The review of the literature suggests that the dispersed phase holdup and mass transfer performance are generally studied for short columns with a few number of plates and with plate free area greater than 19%.…”

Section: Introductionmentioning

confidence: 99%

Mass transfer efficiency of a tall and low plate free area liquid pulsed sieve-plate extraction column

et al. 2017

View full text Add to dashboard Cite

Mass transfer performance is studied in a tall, thin, and low plate free area liquid pulsed sieve-plate extraction column. The 5.0 cm internal diameter column consists of eighty sieve plates with percent free area of only 13.5. The effects of pulsation intensity (product of amplitude and frequency) and dispersed phase velocity are studied on the extraction efficiency of the column for the acetic acid-kerosene-water system. A mass transfer correlation for the measurement of overall mass transfer coefficient is developed that best-fits the experimental data obtained in the present study. Mathematical analysis of the column is carried out that shows the insignificance of axial diffusivities in the column.

show abstract

“…[16][17][18] Some authors found that E d is of an order of magnitude less than E c and does not affect their results. [19,20] So, studies on nonideal PDDC factors traditionally focused on the axial mixing performance of the continuous phase (E c ), which is correlated with experimental parameters at different conditions. Some literature correlations results are listed in Table 1.…”

Section: Introductionmentioning

confidence: 99%

Axial Mixing and Mass Transfer Performance of an Annular Pulsed Disc-and-Doughnut Column

Liu

Jing

2015

Solvent Extraction and Ion Exchange

View full text Add to dashboard Cite

The annular pulsed disc-and-doughnut column (APDDC) is an important type of extraction equipment in the PUREX process, which has been used in several commercial reprocessing plants. As there are few mass transfer experimental reported in the literature, the axial mixing and mass transfer performance of an APDDC was studied for both extraction and stripping processes in the present Two parameters in the axial dispersion model (ADM), namely, the axial dispersion coefficient of the continuous phase and the number of mass transfer units, were regressed by correlating ADM with experimental concentration profiles. The influence of flow rate and pulsation intensity on these parameters was also investigated. Models developed for the PDDC were tested for correlation with APDDC experimental data and suitable models and conditions were determined.A c c e p t e d M a n u s c r i p t height of a mass transfer unit was also calculated, which highlights the impact of axial mixing on mass transfer performance. Moreover, the influence of internal wettability on mass transfer performance was discussed.

show abstract

Computational Strategies for Sizing Liquid−Liquid Extractors

Cited by 28 publications

References 35 publications

Model Assessment for the Prediction of Mass Transfer Coefficients in Liquid‐Liquid Extraction Columns

Model Assessment for the Prediction of Mass Transfer Coefficients in Liquid‐Liquid Extraction Columns

Mass transfer efficiency of a tall and low plate free area liquid pulsed sieve-plate extraction column

Axial Mixing and Mass Transfer Performance of an Annular Pulsed Disc-and-Doughnut Column

Contact Info

Product

Resources

About