Thermal and catalytic cracking of a LDPE-EVA copolymer mixture

Catalytic cracking of a plastic mixture consisting of LDPE and EVA copolymer (86/14 w/w) over mesoporous Al-SBA-15 and Al-MCM-41 materials as well as nanocrystalline HZSM-5 zeolite (crystal size ¿ 35 nm) has been carried out in a batch reactor at 400 - 420ºC. The release of acetic acid formed from t...

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Autores: Serrano, D. P., Aguado, José, Escola, J. M., Rodríguez, J. M., Morselli, L., Orsi, R.
Formato: artículo
Fecha de publicación:2003
País:España
Recursos:Universidad Rey Juan Carlos
Repositorio:BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlos
OAI Identifier:oai:burjcdigital.urjc.es:10115/3737
Acesso em linha:http://hdl.handle.net/10115/3737
Access Level:acceso abierto
Palavra-chave:Medio Ambiente
23 Química
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spelling Thermal and catalytic cracking of a LDPE-EVA copolymer mixtureSerrano, D. P.Aguado, JoséEscola, J. M.Rodríguez, J. M.Morselli, L.Orsi, R.Medio Ambiente23 QuímicaCatalytic cracking of a plastic mixture consisting of LDPE and EVA copolymer (86/14 w/w) over mesoporous Al-SBA-15 and Al-MCM-41 materials as well as nanocrystalline HZSM-5 zeolite (crystal size ¿ 35 nm) has been carried out in a batch reactor at 400 - 420ºC. The release of acetic acid formed from the EVA decomposition was observed within the temperature range 350 - 400ºC. The most active catalyst was nanometer size HZSM-5 that led to complete conversion of the plastic mixture at 420ºC whereas both Al-MCM-41 and Al-SBA-15 were meaningfully less active. In addition, the polymer mixture was more difficult to be cracked both thermally and catalytically than pure LDPE. This result has been ascribed to the occurrence of crosslinking reactions leading to a fast deactivation by coke fouling especially over mesoporous catalysts (Al-MCM-41 and Al-SBA-15) because of their open structure. A high selectivity towards C1 - C5 hydrocarbons (¿ 75 %) was attained over nanometer size HZSM-5, most of them being valuable C3 - C4 olefins. PIONA analyses of the C6 - C12 hydrocarbon fraction obtained at 420ºC indicates that olefins were the main components whereas a significant amount of aromatics was also obtained both thermally and catalytically (> 15 %).Tecnología Química y AmbientalELSEVIER201020102003info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10115/3737reponame:BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlosinstname:Universidad Rey Juan CarlosInglésAtribución-NoComercial-SinDerivadas 3.0 Españahttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:burjcdigital.urjc.es:10115/37372026-06-24T12:48:17Z
dc.title.none.fl_str_mv Thermal and catalytic cracking of a LDPE-EVA copolymer mixture
title Thermal and catalytic cracking of a LDPE-EVA copolymer mixture
spellingShingle Thermal and catalytic cracking of a LDPE-EVA copolymer mixture
Serrano, D. P.
Medio Ambiente
23 Química
title_short Thermal and catalytic cracking of a LDPE-EVA copolymer mixture
title_full Thermal and catalytic cracking of a LDPE-EVA copolymer mixture
title_fullStr Thermal and catalytic cracking of a LDPE-EVA copolymer mixture
title_full_unstemmed Thermal and catalytic cracking of a LDPE-EVA copolymer mixture
title_sort Thermal and catalytic cracking of a LDPE-EVA copolymer mixture
dc.creator.none.fl_str_mv Serrano, D. P.
Aguado, José
Escola, J. M.
Rodríguez, J. M.
Morselli, L.
Orsi, R.
author Serrano, D. P.
author_facet Serrano, D. P.
Aguado, José
Escola, J. M.
Rodríguez, J. M.
Morselli, L.
Orsi, R.
author_role author
author2 Aguado, José
Escola, J. M.
Rodríguez, J. M.
Morselli, L.
Orsi, R.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Medio Ambiente
23 Química
topic Medio Ambiente
23 Química
description Catalytic cracking of a plastic mixture consisting of LDPE and EVA copolymer (86/14 w/w) over mesoporous Al-SBA-15 and Al-MCM-41 materials as well as nanocrystalline HZSM-5 zeolite (crystal size ¿ 35 nm) has been carried out in a batch reactor at 400 - 420ºC. The release of acetic acid formed from the EVA decomposition was observed within the temperature range 350 - 400ºC. The most active catalyst was nanometer size HZSM-5 that led to complete conversion of the plastic mixture at 420ºC whereas both Al-MCM-41 and Al-SBA-15 were meaningfully less active. In addition, the polymer mixture was more difficult to be cracked both thermally and catalytically than pure LDPE. This result has been ascribed to the occurrence of crosslinking reactions leading to a fast deactivation by coke fouling especially over mesoporous catalysts (Al-MCM-41 and Al-SBA-15) because of their open structure. A high selectivity towards C1 - C5 hydrocarbons (¿ 75 %) was attained over nanometer size HZSM-5, most of them being valuable C3 - C4 olefins. PIONA analyses of the C6 - C12 hydrocarbon fraction obtained at 420ºC indicates that olefins were the main components whereas a significant amount of aromatics was also obtained both thermally and catalytically (> 15 %).
publishDate 2003
dc.date.none.fl_str_mv 2003
2010
2010
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10115/3737
url http://hdl.handle.net/10115/3737
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv ELSEVIER
publisher.none.fl_str_mv ELSEVIER
dc.source.none.fl_str_mv reponame:BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlos
instname:Universidad Rey Juan Carlos
instname_str Universidad Rey Juan Carlos
reponame_str BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlos
collection BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlos
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repository.mail.fl_str_mv
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