Electrochemical production of colloidal sulphur by reduction of sulphur dioxide using a parallel plate reactor with convergent flow

Autores
Fornes, Juan Pablo; Bisang, Jose Maria
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A parallel-plate electrochemical reactor with a double convergent flow at the cathodic and also at the anodic compartment is analysed for the production of colloidal sulphur by reduction of sulphur dioxide. A reactor with convergent flow was adopted in order to enhance the mass-transfer conditions along the electrode length. A mathematical treatment is presented for reactors with convergent flow based on the plug flow model, which can predict the maximum current. However, at higher times the cathode is blocked by the deposited sulphur decreasing the current. The best working conditions were achieved with a polished cathode working at a potential of –0.7 V against SCE for a volumetric flow rate of 8.33 × 10−6 m3 s−1 obtaining 19.6 kg m−3 h−1 as the maximum value of space time yield, for which the electrical parameters were 2.6 V average cell voltage, 22 kWh kg−1 specific energy consumption and 40 % current efficiency. The colloidal sulphur presents particles of spheroidal shape with an average diameter of 1.85 μm.
Fil: Fornes, Juan Pablo. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Programa de Electroquímica Aplicada e Ingeniería Electroquímica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina
Fil: Bisang, Jose Maria. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Programa de Electroquímica Aplicada e Ingeniería Electroquímica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina
Materia
Colloidal Sulphur
Sulphur Dioxide
Convergent Flow
Electrochemical Reactor
Sulphur Production
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/44063
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/44063
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network_name_str CONICET Digital (CONICET)
spelling Electrochemical production of colloidal sulphur by reduction of sulphur dioxide using a parallel plate reactor with convergent flowFornes, Juan PabloBisang, Jose MariaColloidal SulphurSulphur DioxideConvergent FlowElectrochemical ReactorSulphur Productionhttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2A parallel-plate electrochemical reactor with a double convergent flow at the cathodic and also at the anodic compartment is analysed for the production of colloidal sulphur by reduction of sulphur dioxide. A reactor with convergent flow was adopted in order to enhance the mass-transfer conditions along the electrode length. A mathematical treatment is presented for reactors with convergent flow based on the plug flow model, which can predict the maximum current. However, at higher times the cathode is blocked by the deposited sulphur decreasing the current. The best working conditions were achieved with a polished cathode working at a potential of –0.7 V against SCE for a volumetric flow rate of 8.33 × 10−6 m3 s−1 obtaining 19.6 kg m−3 h−1 as the maximum value of space time yield, for which the electrical parameters were 2.6 V average cell voltage, 22 kWh kg−1 specific energy consumption and 40 % current efficiency. The colloidal sulphur presents particles of spheroidal shape with an average diameter of 1.85 μm.Fil: Fornes, Juan Pablo. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Programa de Electroquímica Aplicada e Ingeniería Electroquímica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; ArgentinaFil: Bisang, Jose Maria. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Programa de Electroquímica Aplicada e Ingeniería Electroquímica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; ArgentinaPergamon-Elsevier Science Ltd2015-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/44063Fornes, Juan Pablo; Bisang, Jose Maria; Electrochemical production of colloidal sulphur by reduction of sulphur dioxide using a parallel plate reactor with convergent flow; Pergamon-Elsevier Science Ltd; Electrochimica Acta; 173; 5-2015; 743-7490013-4686CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.electacta.2015.05.120info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0013468615012591info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:48:15Zoai:ri.conicet.gov.ar:11336/44063instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:48:16.128CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Electrochemical production of colloidal sulphur by reduction of sulphur dioxide using a parallel plate reactor with convergent flow
title Electrochemical production of colloidal sulphur by reduction of sulphur dioxide using a parallel plate reactor with convergent flow
spellingShingle Electrochemical production of colloidal sulphur by reduction of sulphur dioxide using a parallel plate reactor with convergent flow
Fornes, Juan Pablo
Colloidal Sulphur
Sulphur Dioxide
Convergent Flow
Electrochemical Reactor
Sulphur Production
title_short Electrochemical production of colloidal sulphur by reduction of sulphur dioxide using a parallel plate reactor with convergent flow
title_full Electrochemical production of colloidal sulphur by reduction of sulphur dioxide using a parallel plate reactor with convergent flow
title_fullStr Electrochemical production of colloidal sulphur by reduction of sulphur dioxide using a parallel plate reactor with convergent flow
title_full_unstemmed Electrochemical production of colloidal sulphur by reduction of sulphur dioxide using a parallel plate reactor with convergent flow
title_sort Electrochemical production of colloidal sulphur by reduction of sulphur dioxide using a parallel plate reactor with convergent flow
dc.creator.none.fl_str_mv Fornes, Juan Pablo
Bisang, Jose Maria
author Fornes, Juan Pablo
author_facet Fornes, Juan Pablo
Bisang, Jose Maria
author_role author
author2 Bisang, Jose Maria
author2_role author
dc.subject.none.fl_str_mv Colloidal Sulphur
Sulphur Dioxide
Convergent Flow
Electrochemical Reactor
Sulphur Production
topic Colloidal Sulphur
Sulphur Dioxide
Convergent Flow
Electrochemical Reactor
Sulphur Production
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv A parallel-plate electrochemical reactor with a double convergent flow at the cathodic and also at the anodic compartment is analysed for the production of colloidal sulphur by reduction of sulphur dioxide. A reactor with convergent flow was adopted in order to enhance the mass-transfer conditions along the electrode length. A mathematical treatment is presented for reactors with convergent flow based on the plug flow model, which can predict the maximum current. However, at higher times the cathode is blocked by the deposited sulphur decreasing the current. The best working conditions were achieved with a polished cathode working at a potential of –0.7 V against SCE for a volumetric flow rate of 8.33 × 10−6 m3 s−1 obtaining 19.6 kg m−3 h−1 as the maximum value of space time yield, for which the electrical parameters were 2.6 V average cell voltage, 22 kWh kg−1 specific energy consumption and 40 % current efficiency. The colloidal sulphur presents particles of spheroidal shape with an average diameter of 1.85 μm.
Fil: Fornes, Juan Pablo. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Programa de Electroquímica Aplicada e Ingeniería Electroquímica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina
Fil: Bisang, Jose Maria. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Programa de Electroquímica Aplicada e Ingeniería Electroquímica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina
description A parallel-plate electrochemical reactor with a double convergent flow at the cathodic and also at the anodic compartment is analysed for the production of colloidal sulphur by reduction of sulphur dioxide. A reactor with convergent flow was adopted in order to enhance the mass-transfer conditions along the electrode length. A mathematical treatment is presented for reactors with convergent flow based on the plug flow model, which can predict the maximum current. However, at higher times the cathode is blocked by the deposited sulphur decreasing the current. The best working conditions were achieved with a polished cathode working at a potential of –0.7 V against SCE for a volumetric flow rate of 8.33 × 10−6 m3 s−1 obtaining 19.6 kg m−3 h−1 as the maximum value of space time yield, for which the electrical parameters were 2.6 V average cell voltage, 22 kWh kg−1 specific energy consumption and 40 % current efficiency. The colloidal sulphur presents particles of spheroidal shape with an average diameter of 1.85 μm.
publishDate 2015
dc.date.none.fl_str_mv 2015-05
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/44063
Fornes, Juan Pablo; Bisang, Jose Maria; Electrochemical production of colloidal sulphur by reduction of sulphur dioxide using a parallel plate reactor with convergent flow; Pergamon-Elsevier Science Ltd; Electrochimica Acta; 173; 5-2015; 743-749
0013-4686
CONICET Digital
CONICET
url http://hdl.handle.net/11336/44063
identifier_str_mv Fornes, Juan Pablo; Bisang, Jose Maria; Electrochemical production of colloidal sulphur by reduction of sulphur dioxide using a parallel plate reactor with convergent flow; Pergamon-Elsevier Science Ltd; Electrochimica Acta; 173; 5-2015; 743-749
0013-4686
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.electacta.2015.05.120
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0013468615012591
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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