skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Fundamental Drop Dynamics and Mass Transfer Experiments to Support Solvent Extraction Modeling Efforts

Abstract

In support of the Nuclear Energy Advanced Modeling Simulation Safeguards and Separations (NEAMS SafeSep) program, the Idaho National Laboratory (INL) worked in collaboration with Los Alamos National Laboratory (LANL) to further a modeling effort designed to predict mass transfer behavior for selected metal species between individual dispersed drops and a continuous phase in a two phase liquid-liquid extraction (LLE) system. The purpose of the model is to understand the fundamental processes of mass transfer that occur at the drop interface. This fundamental understanding can be extended to support modeling of larger LLE equipment such as mixer settlers, pulse columns, and centrifugal contactors. The work performed at the INL involved gathering the necessary experimental data to support the modeling effort. A custom experimental apparatus was designed and built for performing drop contact experiments to measure mass transfer coefficients as a function of contact time. A high speed digital camera was used in conjunction with the apparatus to measure size, shape, and velocity of the drops. In addition to drop data, the physical properties of the experimental fluids were measured to be used as input data for the model. Physical properties measurements included density, viscosity, surface tension and interfacial tension. Additionally, selfmore » diffusion coefficients for the selected metal species in each experimental solution were measured, and the distribution coefficient for the metal partitioning between phases was determined. At the completion of this work, the INL has determined the mass transfer coefficient and a velocity profile for drops rising by buoyancy through a continuous medium under a specific set of experimental conditions. Additionally, a complete set of experimentally determined fluid properties has been obtained. All data will be provided to LANL to support the modeling effort.« less

Authors:
; ;
Publication Date:
Research Org.:
Idaho National Laboratory (INL)
Sponsoring Org.:
DOE - NE
OSTI Identifier:
1033906
Report Number(s):
INL/EXT-11-23426
TRN: US1200679
DOE Contract Number:  
DE-AC07-05ID14517
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; CAMERAS; DISTRIBUTION; EXTRACTION APPARATUSES; EXTRACTION COLUMNS; IDAHO NATIONAL LABORATORY; LANL; MASS TRANSFER; MIXER-SETTLERS; NUCLEAR ENERGY; PHYSICAL PROPERTIES; SAFEGUARDS; SELF-DIFFUSION; SHAPE; SOLVENT EXTRACTION; SURFACE TENSION; VELOCITY; VISCOSITY; drop contact; drop dynamics; mass transfer coefficient; mass transfer rate; TRUEX fluid properties

Citation Formats

Kristi Christensen, Veronica Rutledge, and Troy Garn. Fundamental Drop Dynamics and Mass Transfer Experiments to Support Solvent Extraction Modeling Efforts. United States: N. p., 2011. Web. doi:10.2172/1033906.
Kristi Christensen, Veronica Rutledge, & Troy Garn. Fundamental Drop Dynamics and Mass Transfer Experiments to Support Solvent Extraction Modeling Efforts. United States. doi:10.2172/1033906.
Kristi Christensen, Veronica Rutledge, and Troy Garn. Thu . "Fundamental Drop Dynamics and Mass Transfer Experiments to Support Solvent Extraction Modeling Efforts". United States. doi:10.2172/1033906. https://www.osti.gov/servlets/purl/1033906.
@article{osti_1033906,
title = {Fundamental Drop Dynamics and Mass Transfer Experiments to Support Solvent Extraction Modeling Efforts},
author = {Kristi Christensen and Veronica Rutledge and Troy Garn},
abstractNote = {In support of the Nuclear Energy Advanced Modeling Simulation Safeguards and Separations (NEAMS SafeSep) program, the Idaho National Laboratory (INL) worked in collaboration with Los Alamos National Laboratory (LANL) to further a modeling effort designed to predict mass transfer behavior for selected metal species between individual dispersed drops and a continuous phase in a two phase liquid-liquid extraction (LLE) system. The purpose of the model is to understand the fundamental processes of mass transfer that occur at the drop interface. This fundamental understanding can be extended to support modeling of larger LLE equipment such as mixer settlers, pulse columns, and centrifugal contactors. The work performed at the INL involved gathering the necessary experimental data to support the modeling effort. A custom experimental apparatus was designed and built for performing drop contact experiments to measure mass transfer coefficients as a function of contact time. A high speed digital camera was used in conjunction with the apparatus to measure size, shape, and velocity of the drops. In addition to drop data, the physical properties of the experimental fluids were measured to be used as input data for the model. Physical properties measurements included density, viscosity, surface tension and interfacial tension. Additionally, self diffusion coefficients for the selected metal species in each experimental solution were measured, and the distribution coefficient for the metal partitioning between phases was determined. At the completion of this work, the INL has determined the mass transfer coefficient and a velocity profile for drops rising by buoyancy through a continuous medium under a specific set of experimental conditions. Additionally, a complete set of experimentally determined fluid properties has been obtained. All data will be provided to LANL to support the modeling effort.},
doi = {10.2172/1033906},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Sep 01 00:00:00 EDT 2011},
month = {Thu Sep 01 00:00:00 EDT 2011}
}

Technical Report:

Save / Share: