Oxidation of zinc sulphide concentrate in a fluidised bed reactor - Part 2: The influence of experimental variables on the kinetics
Autor(a) principal: | |
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Data de Publicação: | 2005 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Journal of Chemical Engineering |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322005000100013 |
Resumo: | The oxidation kinetics of a blend of zinc sulphide concentrates in a bench-scale fluidised bed reactor operated in batch regime was studied. The fractional conversion was determined by measuring the SO2 concentration in the exit gas using a chromatograph. The effects of the initial mass of the blend, airflow rate and temperature on fractional conversion were studied. The initial mass of the blend varied from 45 to 75 g, the airflow rate from 6 to 9 L/min and the temperature from 883 to 1213 K. The time for complete conversion was affected by the molar ratio of O2 to S fed into the reactor and by temperature. The oxidation reaction was controlled by surface chemical reaction of the unreacted core of the particles. The value of the activation energy, 87 kJ/mole, supports the contention that the reaction was chemically controlled. |
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Brazilian Journal of Chemical Engineering |
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Oxidation of zinc sulphide concentrate in a fluidised bed reactor - Part 2: The influence of experimental variables on the kineticsZinc sulphide oxidationFluidised bedKineticsThe oxidation kinetics of a blend of zinc sulphide concentrates in a bench-scale fluidised bed reactor operated in batch regime was studied. The fractional conversion was determined by measuring the SO2 concentration in the exit gas using a chromatograph. The effects of the initial mass of the blend, airflow rate and temperature on fractional conversion were studied. The initial mass of the blend varied from 45 to 75 g, the airflow rate from 6 to 9 L/min and the temperature from 883 to 1213 K. The time for complete conversion was affected by the molar ratio of O2 to S fed into the reactor and by temperature. The oxidation reaction was controlled by surface chemical reaction of the unreacted core of the particles. The value of the activation energy, 87 kJ/mole, supports the contention that the reaction was chemically controlled.Brazilian Society of Chemical Engineering2005-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322005000100013Brazilian Journal of Chemical Engineering v.22 n.1 2005reponame:Brazilian Journal of Chemical Engineeringinstname:Associação Brasileira de Engenharia Química (ABEQ)instacron:ABEQ10.1590/S0104-66322005000100013info:eu-repo/semantics/openAccessQueiroz,C. A. R.Carvalho,R. J.Moura,F. J.eng2005-03-14T00:00:00Zoai:scielo:S0104-66322005000100013Revistahttps://www.scielo.br/j/bjce/https://old.scielo.br/oai/scielo-oai.phprgiudici@usp.br||rgiudici@usp.br1678-43830104-6632opendoar:2005-03-14T00:00Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ)false |
dc.title.none.fl_str_mv |
Oxidation of zinc sulphide concentrate in a fluidised bed reactor - Part 2: The influence of experimental variables on the kinetics |
title |
Oxidation of zinc sulphide concentrate in a fluidised bed reactor - Part 2: The influence of experimental variables on the kinetics |
spellingShingle |
Oxidation of zinc sulphide concentrate in a fluidised bed reactor - Part 2: The influence of experimental variables on the kinetics Queiroz,C. A. R. Zinc sulphide oxidation Fluidised bed Kinetics |
title_short |
Oxidation of zinc sulphide concentrate in a fluidised bed reactor - Part 2: The influence of experimental variables on the kinetics |
title_full |
Oxidation of zinc sulphide concentrate in a fluidised bed reactor - Part 2: The influence of experimental variables on the kinetics |
title_fullStr |
Oxidation of zinc sulphide concentrate in a fluidised bed reactor - Part 2: The influence of experimental variables on the kinetics |
title_full_unstemmed |
Oxidation of zinc sulphide concentrate in a fluidised bed reactor - Part 2: The influence of experimental variables on the kinetics |
title_sort |
Oxidation of zinc sulphide concentrate in a fluidised bed reactor - Part 2: The influence of experimental variables on the kinetics |
author |
Queiroz,C. A. R. |
author_facet |
Queiroz,C. A. R. Carvalho,R. J. Moura,F. J. |
author_role |
author |
author2 |
Carvalho,R. J. Moura,F. J. |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Queiroz,C. A. R. Carvalho,R. J. Moura,F. J. |
dc.subject.por.fl_str_mv |
Zinc sulphide oxidation Fluidised bed Kinetics |
topic |
Zinc sulphide oxidation Fluidised bed Kinetics |
description |
The oxidation kinetics of a blend of zinc sulphide concentrates in a bench-scale fluidised bed reactor operated in batch regime was studied. The fractional conversion was determined by measuring the SO2 concentration in the exit gas using a chromatograph. The effects of the initial mass of the blend, airflow rate and temperature on fractional conversion were studied. The initial mass of the blend varied from 45 to 75 g, the airflow rate from 6 to 9 L/min and the temperature from 883 to 1213 K. The time for complete conversion was affected by the molar ratio of O2 to S fed into the reactor and by temperature. The oxidation reaction was controlled by surface chemical reaction of the unreacted core of the particles. The value of the activation energy, 87 kJ/mole, supports the contention that the reaction was chemically controlled. |
publishDate |
2005 |
dc.date.none.fl_str_mv |
2005-03-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322005000100013 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322005000100013 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0104-66322005000100013 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Brazilian Society of Chemical Engineering |
publisher.none.fl_str_mv |
Brazilian Society of Chemical Engineering |
dc.source.none.fl_str_mv |
Brazilian Journal of Chemical Engineering v.22 n.1 2005 reponame:Brazilian Journal of Chemical Engineering instname:Associação Brasileira de Engenharia Química (ABEQ) instacron:ABEQ |
instname_str |
Associação Brasileira de Engenharia Química (ABEQ) |
instacron_str |
ABEQ |
institution |
ABEQ |
reponame_str |
Brazilian Journal of Chemical Engineering |
collection |
Brazilian Journal of Chemical Engineering |
repository.name.fl_str_mv |
Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ) |
repository.mail.fl_str_mv |
rgiudici@usp.br||rgiudici@usp.br |
_version_ |
1754213171864797184 |