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Activity–acidity relationship in zeolite ZSM-5. Application of Brönsted-type equations

2000-03-20Journal article Restricted access
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dc.contributor.authorCosta, Carla
dc.contributor.authorDzikh, I. P.
dc.contributor.authorLopes, Jose M.
dc.contributor.authorLemos, Francisco
dc.contributor.authorRibeiro, Fernando Ramôa
dc.date.accessioned2020-06-15T12:41:40Z
dc.date.available2020-06-15T12:41:40Z
dc.date.issued2000-03-20
dc.description.abstractIn this paper the relation between activity and acidity in a variety of ZSM-5 zeolite catalysts, with different Si/Al ratios and different protonic content, is analysed and a quantitative correlation is obtained. The acid site strength distribution was estimated using temperature-programmed desorption (TPD) of ammonia by applying a digital deconvolution method to the curves. These data were then correlated with experimental catalytic activity data for the same catalysts towards n-heptane cracking reaction, by means of a Brönsted-type equation similar to the ones used for homogeneous acid catalysis and already used for other zeolites. It can be noticed that the same types of equation that are used for homogeneous acid catalysis also hold for heterogeneous acid catalysis and that the activation energy for ammonia desorption can be used as acid-strength scale for the purpose of correlation with catalytic activity.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationCOSTA, Carla; [et al] – Activity–acidity relationship in zeolite ZSM-5. Application of Brönsted-type equations. Journal of Molecular Catalysis A: Chemical. ISSN 1381-1169. Vol. 154, N.º 1-2 (2000), pp. 193-201pt_PT
dc.identifier.doi10.1016/S1381-1169(99)00374-Xpt_PT
dc.identifier.issn1381-1169
dc.identifier.urihttp://hdl.handle.net/10400.21/11845
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relation.publisherversionhttps://pdf.sciencedirectassets.com/271358/1-s2.0-S1381116900X01161/1-s2.0-S138111699900374X/main.pdf?X-Amz-Date=20200615T122837Z&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Signature=f086193bf9171212d04fb548eab6551e92258731c2e1beba7bd551924496e416&X-Amz-Credential=ASIAQ3PHCVTYUZT3P244%2F20200615%2Fus-east-1%2Fs3%2Faws4_request&type=client&tid=prr-4f283f5a-31cc-4ba3-bcd4-a23fdd93298e&sid=eb8e92a880715945814ab96741f00169732egxrqb&pii=S138111699900374X&X-Amz-SignedHeaders=host&X-Amz-Security-Token=IQoJb3JpZ2luX2VjECsaCXVzLWVhc3QtMSJHMEUCIQC1%2BEd2c5SvmRE61%2BC70IY3ci36%2Bw5aYpYUZGUKP8VN7wIgct6U8X%2BgVhNBxwJuBoDUkaGmkc%2FUI%2Fl%2FI0bBgxckDPIqvQMIpP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FARADGgwwNTkwMDM1NDY4NjUiDJcGiM2rIuT0GZ1BciqRA8Ed7nfzRtP3XMjG3b4OEVQ%2FYAfMEtnYrUhJnlfXYv10XHTHVg1FMLTPSNIJs1puwkMX4eLZsJD8I5BDHTzODi%2BdH41nLUkLrZrQgrPB7E97qPW%2Fam9NrlITeq2JUMQnWh9%2BpspghH7dflwLEFWBGVHXS%2BwEGdDGg07bp9CEMgQYYEMIAs0mP6uMwrx5OeekflRYCB7NdmQ21HXNX%2BUQgtAwQxr6pm9ncS3oGs%2B7pZoJwBRJmLj4LCRqaZSpnUELRzxO%2B42X1b%2F8bvoBgfIJoloANoi3GmCwNdTbDWvk0vz3WVvfTL5BtAleAG6qgQIva3zGny4%2B1ClT0TiC0rNxG2m3JCvhVmvi8hvyKyGqvBczi8eE2fYI%2FQW%2FPCDGbfsHOOUduJRvS6Oegvv90huxR5GymbhFvqArlLxzxmYLWYdtGzG%2BAN92Pwn315jqbe4yrhYFdLzBYhRv0iDZooYf%2BgSxO0ozqf84gErKCoqOyxizLaY7vG%2F8VE7Onipc%2B3evl%2F1072XSIZVylT2Cyj1YzmrWMPapnfcFOusBrCBDRKNKgBwA5J9pr%2FderUmg2yMbHhbVwRH69T5fXNZ3wit5FSKr8NlKsUSBw4FYlyD5r9tMRWlbsQgf0Kd1cb5O5jqUZDQagRV7%2BuXIferk3tI8d5R6GP6SJi8lHIMCanUh0DYSTbW3XoN3nMHO7KaLKTKlcIOi3Ci%2BccQkJA807OOg7ROl6HVEoIrfXjZDmXjA8Lsprs4WfoaH4d0l4M3yNS72qwtPOvwlzk3BJyt%2F9PMAMlwOsf7SuKvFwMOAKnAAETSUTtNKtNz58%2F89laxxvplKd8Z8cr3uNLNZ4%2FTfi%2BEhFRTqhFTv3Q%3D%3D&host=68042c943591013ac2b2430a89b270f6af2c76d8dfd086a07176afe7c76c2c61&X-Amz-Expires=300&hash=441e9d5dcd23a34a3bc342a7d9e7bcb6e50369871b830f576ac32a67539440ebpt_PT
dc.subjectZeolitespt_PT
dc.subjectZSM-5 zeolitept_PT
dc.subjectAciditypt_PT
dc.subjectActivitypt_PT
dc.subjectParaffin transformationpt_PT
dc.titleActivity–acidity relationship in zeolite ZSM-5. Application of Brönsted-type equationspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage201pt_PT
oaire.citation.issue1-2pt_PT
oaire.citation.startPage193pt_PT
oaire.citation.titleJournal of Molecular Catalysis A: Chemicalpt_PT
oaire.citation.volume154pt_PT
person.familyNameCosta
person.familyNameLopes
person.familyNameLemos
person.givenNameCarla
person.givenNameJosé
person.givenNameFrancisco
person.identifier138292
person.identifier.ciencia-idC018-BEF8-5A77
person.identifier.ciencia-id6D1D-012F-5681
person.identifier.orcid0000-0003-4222-4734
person.identifier.orcid0000-0002-9830-7160
person.identifier.orcid0000-0002-7795-1002
person.identifier.ridC-9902-2012
person.identifier.ridK-2936-2015
person.identifier.scopus-author-id15840018200
person.identifier.scopus-author-id57194262417
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
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relation.isAuthorOfPublicatione4021b0b-46c8-4ea6-a6ec-969101a1d469
relation.isAuthorOfPublication.latestForDiscoverye4021b0b-46c8-4ea6-a6ec-969101a1d469

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