Experimental and Modelling Studies of Mass Transfer in Centrifugal Contactors

Steve Drewery; Erik Heeres; Steve Percival; Chris Rhodes; Mitch St. George; Erwin Wilbers; David A. Woodhead

doi:10.1016/j.proche.2012.10.054

Experimental and Modelling Studies of Mass Transfer in Centrifugal Contactors

Steve Drewery, Erik Heeres, Steve Percival, Chris Rhodes, Mitch St. George, Erwin Wilbers, David A. Woodhead

Engineering and Technology Institute Groningen

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Abstract

Experimental trials have been undertaken to determine interfacial area for mass transfer in 5cm and 25cm diameter annular centrifugal contactors. All trials used 30% TBP in Exxsol D80 diluent, with extraction of HNO3 being studied at varying flowrates and volumetric flow ratios. Droplet size was determined using a laser reflectance probe. Results from the 5 cm rig showed two different regions of operation and the value of the dimensionless constant (K) in the Kolmogoroff expression was estimated to be 0.28 for O/A ratios below 2.5 and 0.30 above 2.5. From the 25cm rig trials K was estimated to be 0.26.

Original language	English
Pages (from-to)	341-348
Number of pages	8
Journal	Procedia Chemistry
Volume	7
Issue number	11
DOIs	https://doi.org/10.1016/j.proche.2012.10.054
Publication status	Published - 2012

Keywords

Solvent Extraction
Mass Transfer
Droplet Size
Area
Annular Centrifugal Contactor

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title = "Experimental and Modelling Studies of Mass Transfer in Centrifugal Contactors",

abstract = "Experimental trials have been undertaken to determine interfacial area for mass transfer in 5cm and 25cm diameter annular centrifugal contactors. All trials used 30% TBP in Exxsol D80 diluent, with extraction of HNO3 being studied at varying flowrates and volumetric flow ratios. Droplet size was determined using a laser reflectance probe. Results from the 5 cm rig showed two different regions of operation and the value of the dimensionless constant (K) in the Kolmogoroff expression was estimated to be 0.28 for O/A ratios below 2.5 and 0.30 above 2.5. From the 25cm rig trials K was estimated to be 0.26.",

keywords = "Solvent Extraction, Mass Transfer, Droplet Size, Area, Annular Centrifugal Contactor",

author = "Steve Drewery and Erik Heeres and Steve Percival and Chris Rhodes and {St. George}, Mitch and Erwin Wilbers and Woodhead, {David A.}",

note = "Relation: http://www.rug.nl/fmns-research/itm/index Rights: University of Groningen, Research Institute of Technology and Management",

year = "2012",

doi = "10.1016/j.proche.2012.10.054",

language = "English",

volume = "7",

pages = "341--348",

journal = "Procedia Chemistry",

issn = "1876-6196",

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T1 - Experimental and Modelling Studies of Mass Transfer in Centrifugal Contactors

AU - Drewery, Steve

AU - Heeres, Erik

AU - Percival, Steve

AU - Rhodes, Chris

AU - St. George, Mitch

AU - Wilbers, Erwin

AU - Woodhead, David A.

N1 - Relation: http://www.rug.nl/fmns-research/itm/index Rights: University of Groningen, Research Institute of Technology and Management

PY - 2012

Y1 - 2012

N2 - Experimental trials have been undertaken to determine interfacial area for mass transfer in 5cm and 25cm diameter annular centrifugal contactors. All trials used 30% TBP in Exxsol D80 diluent, with extraction of HNO3 being studied at varying flowrates and volumetric flow ratios. Droplet size was determined using a laser reflectance probe. Results from the 5 cm rig showed two different regions of operation and the value of the dimensionless constant (K) in the Kolmogoroff expression was estimated to be 0.28 for O/A ratios below 2.5 and 0.30 above 2.5. From the 25cm rig trials K was estimated to be 0.26.

AB - Experimental trials have been undertaken to determine interfacial area for mass transfer in 5cm and 25cm diameter annular centrifugal contactors. All trials used 30% TBP in Exxsol D80 diluent, with extraction of HNO3 being studied at varying flowrates and volumetric flow ratios. Droplet size was determined using a laser reflectance probe. Results from the 5 cm rig showed two different regions of operation and the value of the dimensionless constant (K) in the Kolmogoroff expression was estimated to be 0.28 for O/A ratios below 2.5 and 0.30 above 2.5. From the 25cm rig trials K was estimated to be 0.26.

KW - Solvent Extraction

KW - Mass Transfer

KW - Droplet Size

KW - Area

KW - Annular Centrifugal Contactor

U2 - 10.1016/j.proche.2012.10.054

DO - 10.1016/j.proche.2012.10.054

M3 - Article

SN - 1876-6196

VL - 7

SP - 341

EP - 348

JO - Procedia Chemistry

JF - Procedia Chemistry

IS - 11

ER -

Experimental and Modelling Studies of Mass Transfer in Centrifugal Contactors

Abstract

Keywords

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