Optimal operating policies for tailored linear polyethylene resins production

Detalhes bibliográficos
Autor(a) principal: Pontes, Karen Valverde
Data de Publicação: 2008
Outros Autores: Maciel, R., Embiruçu, Marcelo, Hartwich, A., Marquardt, W.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://www.repositorio.ufba.br/ri/handle/ri/6045
Resumo: Acesso restrito: Texto completo. p. 2346-2365
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spelling Pontes, Karen ValverdeMaciel, R.Embiruçu, MarceloHartwich, A.Marquardt, W.Pontes, Karen ValverdeMaciel, R.Embiruçu, MarceloHartwich, A.Marquardt, W.2012-06-01T13:35:53Z20080001-1541http://www.repositorio.ufba.br/ri/handle/ri/6045v. 54, n. 9Acesso restrito: Texto completo. p. 2346-2365In this work, optimal operating policies for the ethylene polymerization in solution with a Ziegler-Natta catalyst in a series of tubular and stirred tank reactors are proposed. The polymer is specified through properties such as melt index, stress exponent and density. Usually such properties are predicted by means of a process model once the operating conditions are specified. However, the computation of appropriate operating conditions to match desired resins properties is a much more difficult and not yet industrially established task. This problem can be solved through optimization techniques, an efficient alternative to costly pilot plant or production scale tests. A formulation is proposed, where a stationary model of the flowsheet (DAE system) is cast into a multi-stage model with the spatial flow path coordinate as the independent variable. Discontinuities occur at the stage transitions because of model switches and reactants injection. Several studies, involving different polyethylene resin specifications, are carried out to present the high potential and versatility of the suggested procedure. © 2008 American Institute of Chemical Engineers AIChE J, 2008Submitted by JURANDI DE SOUZA SILVA (jssufba@hotmail.com) on 2012-06-01T13:35:53Z No. of bitstreams: 1 __onlinelibrary.wiley.co...26d45d5b26730fe5389fc376172c8.pdf: 441469 bytes, checksum: 11aba28bea05ca0a670c561f2aa24acf (MD5)Made available in DSpace on 2012-06-01T13:35:53Z (GMT). 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dc.title.pt_BR.fl_str_mv Optimal operating policies for tailored linear polyethylene resins production
dc.title.alternative.pt_BR.fl_str_mv AIChE Journal
title Optimal operating policies for tailored linear polyethylene resins production
spellingShingle Optimal operating policies for tailored linear polyethylene resins production
Pontes, Karen Valverde
Mathematical modeling
optimization
polymerization
simulation
process
design (process simulation)
title_short Optimal operating policies for tailored linear polyethylene resins production
title_full Optimal operating policies for tailored linear polyethylene resins production
title_fullStr Optimal operating policies for tailored linear polyethylene resins production
title_full_unstemmed Optimal operating policies for tailored linear polyethylene resins production
title_sort Optimal operating policies for tailored linear polyethylene resins production
author Pontes, Karen Valverde
author_facet Pontes, Karen Valverde
Maciel, R.
Embiruçu, Marcelo
Hartwich, A.
Marquardt, W.
author_role author
author2 Maciel, R.
Embiruçu, Marcelo
Hartwich, A.
Marquardt, W.
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Pontes, Karen Valverde
Maciel, R.
Embiruçu, Marcelo
Hartwich, A.
Marquardt, W.
Pontes, Karen Valverde
Maciel, R.
Embiruçu, Marcelo
Hartwich, A.
Marquardt, W.
dc.subject.por.fl_str_mv Mathematical modeling
optimization
polymerization
simulation
process
design (process simulation)
topic Mathematical modeling
optimization
polymerization
simulation
process
design (process simulation)
description Acesso restrito: Texto completo. p. 2346-2365
publishDate 2008
dc.date.issued.fl_str_mv 2008
dc.date.accessioned.fl_str_mv 2012-06-01T13:35:53Z
dc.type.driver.fl_str_mv Artigo de Periódico
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://www.repositorio.ufba.br/ri/handle/ri/6045
dc.identifier.issn.none.fl_str_mv 0001-1541
dc.identifier.number.pt_BR.fl_str_mv v. 54, n. 9
identifier_str_mv 0001-1541
v. 54, n. 9
url http://www.repositorio.ufba.br/ri/handle/ri/6045
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.pt_BR.fl_str_mv http://onlinelibrary.wiley.com/doi/10.1002/aic.11566/pdf
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFBA
instname:Universidade Federal da Bahia (UFBA)
instacron:UFBA
instname_str Universidade Federal da Bahia (UFBA)
instacron_str UFBA
institution UFBA
reponame_str Repositório Institucional da UFBA
collection Repositório Institucional da UFBA
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