Repository logo
 
Publication

H-USY and H-ZSM-5 zeolites as catalysts for HDPE conversion under a hydrogen reductive atmosphere

2021-02-21Journal article Restricted access
Simple item page
dc.contributor.authorCosta, Cátia S.
dc.contributor.authorMUÑOZ, MARTA
dc.contributor.authorRibeiro, M. Rosário
dc.contributor.authorSilva, João M
dc.date.accessioned2021-06-08T10:41:29Z
dc.date.available2021-06-08T10:41:29Z
dc.date.issued2021-02-21
dc.description.abstractThe rapid increase in the consumption of plastic caused by the abrupt growth in living standards had a noticeable effect on the plastic waste generated. Consequently, a significant number of solutions have been proposed to address this issue, with catalytic cracking under H-2 atmosphere being one of the most promising ones. In this study, the catalytic conversion of HDPE under a reductive atmosphere was evaluated by thermogravimetric analysis using large and medium pore zeolites (H-USY and H-ZSM-5, respectively) with distinct Si/Al ratios as catalytic systems. The effect of adding a metallic source to zeolites was also analyzed in this work. Results show that high temperatures are required to convert HDPE (433-480 degrees C). However, the energy requirements can be reduced by adding a zeolite catalyst to the process. In this case, the H-USY zeolite was the most efficient catalytic system for HDPE degradation, allowing for a reduction of around 169 degrees C to the onset degradation temperature. The accessibility of this large pore zeolite, together with its acidic character, seems to have a determining role on the reaction. The addition of a Ni metallic source to H-USY and H-ZSM-5 led to further reduction on energy inputs. Moreover, the liquid product distribution for H-USY was shifted to lighter fractions.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationCOSTA, Cátia S.; [et al] – H-USY and H-ZSM-5 zeolites as catalysts for HDPE conversion under a hydrogen reductive atmosphere. Sustainable Energy and Fuels. ISSN 2398-4902. Vol. 5, N.º 4 (2021), pp. 1134-1147pt_PT
dc.identifier.doi10.1039/d0se01584apt_PT
dc.identifier.issn2398-4902
dc.identifier.urihttp://hdl.handle.net/10400.21/13426
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherRoyal Society of Chemistrypt_PT
dc.relationERANETMED/0003/2014 - FCT European Commissionpt_PT
dc.relationUID/QUI/00100/2019 - FCT European Commissionpt_PT
dc.relationPD/BD/12862/2017 - FCT-CATSUS programpt_PT
dc.subjectH-USY zeolitept_PT
dc.subjectH-ZSM-5 zeolitept_PT
dc.subjectHDPE conversionpt_PT
dc.subjectHydrogen reductive atmospherept_PT
dc.titleH-USY and H-ZSM-5 zeolites as catalysts for HDPE conversion under a hydrogen reductive atmospherept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage1147pt_PT
oaire.citation.issue4pt_PT
oaire.citation.startPage1134pt_PT
oaire.citation.titleSustainable Energy and Fuelspt_PT
oaire.citation.volume5pt_PT
person.familyNameMUÑOZ
person.familyNameGomes Ribeiro
person.familyNameSilva
person.givenNameMARTA
person.givenNameMaria do Rosário
person.givenNameJoão Miguel Alves da
person.identifierE-6381-2013
person.identifierfWmw7kEAAAAJ
person.identifier.ciencia-id8412-BFED-AD4F
person.identifier.ciencia-id3F1B-A9AE-3FB8
person.identifier.ciencia-id3D1F-BD3A-4A9D
person.identifier.orcid0000-0002-4164-2224
person.identifier.orcid0000-0003-1704-1362
person.identifier.orcid0000-0003-1244-6483
person.identifier.scopus-author-id16317291000
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication8d4b63ca-48f2-49aa-820b-b60108965c83
relation.isAuthorOfPublication376a7113-b766-40c6-aac4-00b4b7b1001c
relation.isAuthorOfPublication36449517-d0f7-4619-aae3-81af776b82fd
relation.isAuthorOfPublication.latestForDiscovery8d4b63ca-48f2-49aa-820b-b60108965c83

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
H-USY_JMSilva.pdf
Size:
1.1 MB
Format:
Adobe Portable Document Format
Download

Collections

ISEL - Eng. Quim. Biol. - Artigos