Comparison of techniques for the determination of conversion during suspension polymerization reactions

Detalhes bibliográficos
Autor(a) principal: Santos,J. C.
Data de Publicação: 2008
Outros Autores: Lopes,C. N., Reis,M. M., Giudici,R., Sayer,C., Machado,R. A. F., Araújo,P. H. H.
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=S0104-66322008000200017
Resumo: The determination of conversion during suspension polymerization reactions is not an easy task due to the heterogeneity of the reaction medium and the tendency of particles to agglomerate rapidly when stirring is stopped. Usually, bulk polymerization in ampoules is employed to study the kinetics of suspension polymerization reactions. In this work, a comparison of different techniques for the determination of conversion during suspension polymerization reactions is presented. Results showed a good agreement between the conversion obtained by gravimetry during styrene suspension polymerization and on-line conversion monitoring data using fiber-optic based Raman Spectroscopy. Nevertheless, the polymerization rate of styrene bulk polymerization carried out in ampoules was higher than the real reaction rate of styrene suspension polymerization due to slightly higher reaction temperatures. Simulation results using the experimental temperature data in a mathematical model confirmed these results.
id ABEQ-1_d1e6e2e87a7ad5561bf2f503582549c9
oai_identifier_str oai:scielo:S0104-66322008000200017
network_acronym_str ABEQ-1
network_name_str Brazilian Journal of Chemical Engineering
repository_id_str
spelling Comparison of techniques for the determination of conversion during suspension polymerization reactionsSuspension polymerizationBulk polymerizationGravimetryStyreneRaman spectroscopyThe determination of conversion during suspension polymerization reactions is not an easy task due to the heterogeneity of the reaction medium and the tendency of particles to agglomerate rapidly when stirring is stopped. Usually, bulk polymerization in ampoules is employed to study the kinetics of suspension polymerization reactions. In this work, a comparison of different techniques for the determination of conversion during suspension polymerization reactions is presented. Results showed a good agreement between the conversion obtained by gravimetry during styrene suspension polymerization and on-line conversion monitoring data using fiber-optic based Raman Spectroscopy. Nevertheless, the polymerization rate of styrene bulk polymerization carried out in ampoules was higher than the real reaction rate of styrene suspension polymerization due to slightly higher reaction temperatures. Simulation results using the experimental temperature data in a mathematical model confirmed these results.Brazilian Society of Chemical Engineering2008-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322008000200017Brazilian Journal of Chemical Engineering v.25 n.2 2008reponame:Brazilian Journal of Chemical Engineeringinstname:Associação Brasileira de Engenharia Química (ABEQ)instacron:ABEQ10.1590/S0104-66322008000200017info:eu-repo/semantics/openAccessSantos,J. C.Lopes,C. N.Reis,M. M.Giudici,R.Sayer,C.Machado,R. A. F.Araújo,P. H. H.eng2008-07-03T00:00:00Zoai:scielo:S0104-66322008000200017Revistahttps://www.scielo.br/j/bjce/https://old.scielo.br/oai/scielo-oai.phprgiudici@usp.br||rgiudici@usp.br1678-43830104-6632opendoar:2008-07-03T00:00Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ)false
dc.title.none.fl_str_mv Comparison of techniques for the determination of conversion during suspension polymerization reactions
title Comparison of techniques for the determination of conversion during suspension polymerization reactions
spellingShingle Comparison of techniques for the determination of conversion during suspension polymerization reactions
Santos,J. C.
Suspension polymerization
Bulk polymerization
Gravimetry
Styrene
Raman spectroscopy
title_short Comparison of techniques for the determination of conversion during suspension polymerization reactions
title_full Comparison of techniques for the determination of conversion during suspension polymerization reactions
title_fullStr Comparison of techniques for the determination of conversion during suspension polymerization reactions
title_full_unstemmed Comparison of techniques for the determination of conversion during suspension polymerization reactions
title_sort Comparison of techniques for the determination of conversion during suspension polymerization reactions
author Santos,J. C.
author_facet Santos,J. C.
Lopes,C. N.
Reis,M. M.
Giudici,R.
Sayer,C.
Machado,R. A. F.
Araújo,P. H. H.
author_role author
author2 Lopes,C. N.
Reis,M. M.
Giudici,R.
Sayer,C.
Machado,R. A. F.
Araújo,P. H. H.
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Santos,J. C.
Lopes,C. N.
Reis,M. M.
Giudici,R.
Sayer,C.
Machado,R. A. F.
Araújo,P. H. H.
dc.subject.por.fl_str_mv Suspension polymerization
Bulk polymerization
Gravimetry
Styrene
Raman spectroscopy
topic Suspension polymerization
Bulk polymerization
Gravimetry
Styrene
Raman spectroscopy
description The determination of conversion during suspension polymerization reactions is not an easy task due to the heterogeneity of the reaction medium and the tendency of particles to agglomerate rapidly when stirring is stopped. Usually, bulk polymerization in ampoules is employed to study the kinetics of suspension polymerization reactions. In this work, a comparison of different techniques for the determination of conversion during suspension polymerization reactions is presented. Results showed a good agreement between the conversion obtained by gravimetry during styrene suspension polymerization and on-line conversion monitoring data using fiber-optic based Raman Spectroscopy. Nevertheless, the polymerization rate of styrene bulk polymerization carried out in ampoules was higher than the real reaction rate of styrene suspension polymerization due to slightly higher reaction temperatures. Simulation results using the experimental temperature data in a mathematical model confirmed these results.
publishDate 2008
dc.date.none.fl_str_mv 2008-06-01
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=S0104-66322008000200017
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322008000200017
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0104-66322008000200017
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.25 n.2 2008
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_ 1754213172658569216

Registros relacionados