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Title: Characterization of an electrochemical pilot-plant filter-press reactor by hydrodynamic and mass transport studies

Abstract

This work deals with the study of the influence of turbulence promoters in the hydrodynamic and mass transport behavior of a pilot-plant filter-press electrolyzer (a homemade UA200.08 with a 200 cm{sup 2} electrode area) in an undivided configuration. A simple experimental arrangement was used to generate data from electrolytic conductivity measurements in a series of impulse-response experiments. The presence and type of turbulence promoters influence the flow distribution inside the reactor. A new design of a model (presented in a previous work) has been used to analyze the residence time distributions. In this study a new parameter, the turbulence factor, given as N{sub {alpha}}{Phi}{sub {beta}}, was employed to classify the turbulence promoters. The optimization of the parameters indicates that the correct model is dispersed plug-flow behavior with a low axial dispersion that considers exchange between the dead and main zones of the reactor. It is also very interesting to highlight that the information obtained by means of the turbulence factors is similar to that obtained from the values of the mass transport coefficients measured using the limiting current technique.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Univ. de Alicante (ES)
OSTI Identifier:
20076063
Resource Type:
Journal Article
Journal Name:
Industrial and Engineering Chemistry Research
Additional Journal Information:
Journal Volume: 39; Journal Issue: 5; Other Information: PBD: May 2000; Journal ID: ISSN 0888-5885
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; ELECTROCHEMICAL CELLS; CHEMICAL REACTORS; PRESSES; MASS TRANSFER; HYDRODYNAMICS; FLOW MODELS; TURBULENCE

Citation Formats

Gonzalez-Garcia, J., Frias, A., Exposito, E., Montiel, V., Aldaz, A., and Conesa, J.A. Characterization of an electrochemical pilot-plant filter-press reactor by hydrodynamic and mass transport studies. United States: N. p., 2000. Web. doi:10.1021/ie990351q.
Gonzalez-Garcia, J., Frias, A., Exposito, E., Montiel, V., Aldaz, A., & Conesa, J.A. Characterization of an electrochemical pilot-plant filter-press reactor by hydrodynamic and mass transport studies. United States. doi:10.1021/ie990351q.
Gonzalez-Garcia, J., Frias, A., Exposito, E., Montiel, V., Aldaz, A., and Conesa, J.A. Mon . "Characterization of an electrochemical pilot-plant filter-press reactor by hydrodynamic and mass transport studies". United States. doi:10.1021/ie990351q.
@article{osti_20076063,
title = {Characterization of an electrochemical pilot-plant filter-press reactor by hydrodynamic and mass transport studies},
author = {Gonzalez-Garcia, J. and Frias, A. and Exposito, E. and Montiel, V. and Aldaz, A. and Conesa, J.A.},
abstractNote = {This work deals with the study of the influence of turbulence promoters in the hydrodynamic and mass transport behavior of a pilot-plant filter-press electrolyzer (a homemade UA200.08 with a 200 cm{sup 2} electrode area) in an undivided configuration. A simple experimental arrangement was used to generate data from electrolytic conductivity measurements in a series of impulse-response experiments. The presence and type of turbulence promoters influence the flow distribution inside the reactor. A new design of a model (presented in a previous work) has been used to analyze the residence time distributions. In this study a new parameter, the turbulence factor, given as N{sub {alpha}}{Phi}{sub {beta}}, was employed to classify the turbulence promoters. The optimization of the parameters indicates that the correct model is dispersed plug-flow behavior with a low axial dispersion that considers exchange between the dead and main zones of the reactor. It is also very interesting to highlight that the information obtained by means of the turbulence factors is similar to that obtained from the values of the mass transport coefficients measured using the limiting current technique.},
doi = {10.1021/ie990351q},
journal = {Industrial and Engineering Chemistry Research},
issn = {0888-5885},
number = 5,
volume = 39,
place = {United States},
year = {2000},
month = {5}
}