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Alkali-activated binders produced from petrochemical fluid catalytic cracking catalyst waste

2014-09Journal article Restricted access
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dc.contributor.authorCosta, Carla
dc.contributor.authorFerreira, Cátia
dc.contributor.authorRibeiro, Maria Filipa
dc.contributor.authorFernandes, Auguste
dc.date.accessioned2020-05-28T14:33:31Z
dc.date.available2020-05-28T14:33:31Z
dc.date.issued2014-09
dc.description.abstractThis paper describes research on the viability of producing alkali activated binders using the aluminosilicate catalyst waste-generated by the fluid catalytic cracking (wFCC) unit in the Portuguese oil refinery company-as precursor. For this purpose, alkali-activated wFCC catalyst based mortars and cement pastes were produced. Tests were carried out to evaluate the effect of initial solids composition (wFCC catalyst/Ca(OH) 2 ratio) on mortars workability or mechanical strength. The mineralogy and microstructure of the hardened alkali activated wFCC catalyst pastes were studied by means of Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD). The results obtained at macroscale showed that the content of Ca(OH) 2 incorporated in the binder has a significant effect on compressive strength of hardened mortars. At microscale, FTIR and XRD results confirmed the occurrence of alkali-activation of the wFCC catalyst which leads to the formation of distinctive amorphous and crystalline products. Moreover, the obtained results also suggest that initial solids composition influences the alkali-activation reaction kinetics and mechanism.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationCOSTA, Carla; [et al] – Alkali-activated binders produced from petrochemical fluid catalytic cracking catalyst waste. IJRET: International Journal of Research in Engineering and Technology. ISSN 2321-7308. Vol. 3, Special Issue N.º 13 (2014), pp. 114-122pt_PT
dc.identifier.doi10.15623/ijret.2014.0325019pt_PT
dc.identifier.issn2321-7308
dc.identifier.issn2319-1163
dc.identifier.urihttp://hdl.handle.net/10400.21/11743
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherICNTCCpt_PT
dc.relation.publisherversionhttps://ijret.org/volumes/2014v03/i25/IJRET20140325019.pdfpt_PT
dc.subjectAlkali-activated binderspt_PT
dc.subjectWaste FCC catalystpt_PT
dc.subjectMechanical strengthpt_PT
dc.subjectFTIRpt_PT
dc.subjectXRDpt_PT
dc.titleAlkali-activated binders produced from petrochemical fluid catalytic cracking catalyst wastept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage122pt_PT
oaire.citation.issue13pt_PT
oaire.citation.startPage114pt_PT
oaire.citation.titleInternational journal of research in engineering and technologypt_PT
oaire.citation.volume3pt_PT
person.familyNameCosta
person.familyNameFernandes
person.givenNameCarla
person.givenNameAuguste
person.identifier.ciencia-idDC14-6209-7347
person.identifier.orcid0000-0003-4222-4734
person.identifier.orcid0000-0001-6545-073X
person.identifier.ridK-6693-2012
person.identifier.scopus-author-id14059748900
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication6dd2b0ba-82ea-4928-be43-62f14e275ac3
relation.isAuthorOfPublicationf7ec512c-5044-4283-b2bd-f2a8eb9d4a2c
relation.isAuthorOfPublication.latestForDiscoveryf7ec512c-5044-4283-b2bd-f2a8eb9d4a2c

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