Repository logo
 
Publication

Designing silica xerogels containing RTIL for CO2 capture and CO2/CH4 separation: Influence of ILs anion, cation and cation side alkyl chain length and ramification

2020-08-15Journal article Restricted access
Simple item page
dc.contributor.authorDos Santos, Leonardo
dc.contributor.authorBernard, Franciele L.
dc.contributor.authorPolesso, Barbara B.
dc.contributor.authorPinto, Ingrid S.
dc.contributor.authorFrankenberg, Claudio C.
dc.contributor.authorCorvo, Marta C.
dc.contributor.authorAlmeida, Pedro L.
dc.contributor.authorCabrita, Eurico J
dc.contributor.authorEinloft, Sandra
dc.date.accessioned2020-06-29T10:52:12Z
dc.date.available2020-06-29T10:52:12Z
dc.date.issued2020-08-15
dc.description.abstractCO2 separation from natural gas is considered to be a crucial strategy to mitigate global warming problems, meet product specification, pipeline specs and other application specific requirements. Silica xerogels (SX) are considered to be potential materials for CO2 capture due to their high specific surface area. Thus, a series of silica xerogels functionalized with imidazolium, phosphonium, ammonium and pyridinium-based room-temperature ionic liquids (RTILs) were synthesized. The synthesized silica xerogels were characterized by NMR, helium pycnometry, DTA-TG, BET, SEM and TEM. CO2 sorption, reusability and CO2/CH4 selectivity were assessed by the pressure-decay technique. Silica xerogels containing IL demonstrated advantages compared to RTILs used as separation solvents in CO2 capture processes including higher CO2 sorption capacity and faster sorption/desorption. Using fluorinated anion for functionalization of silica xerogels leads to a higher affinity for CO2 over CH4. The best performance was obtained by SX- [bmim] [TF2N] (223.4 mg CO2/g mg/g at 298.15 K and 20 bar). Moreover, SX- [bmim] [TF2N] showed higher CO2 sorption capacity as compared to other reported sorbents. CO2 sorption and CO2/CH4 selectivity results were submitted to an analysis of variance and the means compared using Tukey's test (5%).pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationSANTOS, Leonardo M. dos; [et al] – Designing silica xerogels containing RTIL for CO2 capture and CO2/CH4 separation: Influence of ILs anion, cation and cation side alkyl chain length and ramification. Journal of Environmetal Management. ISSN 0301-4797. Vol. 268 (2020), pp. 1-10pt_PT
dc.identifier.doi10.1016/j.jenvman.2020.110340pt_PT
dc.identifier.issn0301-4797
dc.identifier.urihttp://hdl.handle.net/10400.21/11956
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationPTDC/QUI-QFI/31508/2017 - FCTpt_PT
dc.relationPINFRA/22161/2016 - FCTpt_PT
dc.relation.publisherversionhttps://pdf.sciencedirectassets.com/272592/1-s2.0-S0301479720X00120/1-s2.0-S0301479720302759/main.pdf?X-Amz-Date=20200629T103743Z&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Signature=498188429c0a88e95f30beaf1f822854a03cdc9ace2a29e54e5dfc649782761e&X-Amz-Credential=ASIAQ3PHCVTYUVYPKFPA%2F20200629%2Fus-east-1%2Fs3%2Faws4_request&type=client&tid=prr-7c36bb3f-08fa-47ed-9257-e557ccdbe8b2&sid=97d8f6212e3806415a697488c19fe2fd1ddagxrqb&pii=S0301479720302759&X-Amz-SignedHeaders=host&X-Amz-Security-Token=IQoJb3JpZ2luX2VjEHoaCXVzLWVhc3QtMSJGMEQCIGSTsnvU34e1xVNrQSCWviXWqa1H2WZNDNsezEBob0onAiA%2FUtKv9NK%2FG1sOskgAb8x%2FJMX30Givhe3KoqAjRT%2F0lSq0AwgSEAMaDDA1OTAwMzU0Njg2NSIMnyVzNl8rpZtPgav9KpEDw8Z%2FT0hSrod1vzV410oc00BD7BqEvwRTRVFTpaMiZIATuhC75qDn%2BlBcGpN%2Bje7LyWnQ1vIsi3dgNw9U%2FIqCCF0Cz1ToFqKnn5zN9L9lF6bdRz%2F61B%2BDnaxzA4qRKPhxGFXVFCDvXMfqUrKGy0edt1Zr5XCtKAgtGJ%2BKwNJh%2Fc8FA73qY1nfhLd%2F3wwGmU%2FzqIXHvnR4%2FSOwqz720DzzwN5WpndSY0DInR%2B5pwOwRLfYtP0Q0qvMmLnxeoqAYJvzFhQJ9HevAm43aYV6OL5Ce8ZxWAdiCDNk1SF%2FrTn%2BKkX2UnkX%2Fjjq154HitC%2By9Hprs1c5vZN%2BakA%2FGurF63CZ5TMyLQNINQ2b79TZcbvYZFrXjLziqgkbss0esLl9ipp1TbqxqppNbxqI7MvTksUKLxBP71eXsG8Pq0sAOh87uN4XpZhCIwJopQ0Po2dqWyjcrMCJyi7qQgJ0ArlQLlACY8K%2BxuWX1Byum%2B5VXisD5NYIrq0dIqd7vx7yq9aPFcBrJoRBT%2B%2BJbY6Nm7SUnoNJpEw5ePm9wU67AHYGv0ZRiSBj%2FdZuDaouh9IcNZBPB7ubXeEqx7hjIYf4LZiDcePh1zyGJcTR8CR4qku6gmBd0rbEjnE8HxAtD8LQb6PZP6pXNAYiMSYDxjkWjMPjRIaL%2F5aZ%2B8PHmDexmXursEmsmg6zccbNVOuce7rgqANFxfYz9EDtZPPkjGqoNzFI4JogByDIu%2BB1RNovZRMKz5Wd9nC7j%2B%2BnTFimCb4MrccGdDM1YxE0NJCFLFqOv88GWogUlnYNvaltR5eLC9KRNXYsAM3V9WHP1b2ZdhJWLKFtxmZhLM%2BOmZ5DkMQDRZm81VcBeOBsW5NtQ%3D%3D&host=68042c943591013ac2b2430a89b270f6af2c76d8dfd086a07176afe7c76c2c61&X-Amz-Expires=300&hash=8f7b9eec42ad7ed883cb40310f239c824cac162203e1c1e4601ae0963b4813d4pt_PT
dc.subjectCO2 separationpt_PT
dc.subjectSilica xerogelspt_PT
dc.subjectIonic liquidspt_PT
dc.subjectNatural gaspt_PT
dc.titleDesigning silica xerogels containing RTIL for CO2 capture and CO2/CH4 separation: Influence of ILs anion, cation and cation side alkyl chain length and ramificationpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage10pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleJournal of Environmetal Managementpt_PT
oaire.citation.volume268pt_PT
person.familyNamedos Santos
person.familyNameCorvo
person.familyNameMarques de Almeida
person.familyNameCabrita
person.familyNameEinloft
person.givenNameLeonardo
person.givenNameMarta Cristina Parracho Cançado
person.givenNamePedro
person.givenNameEurico
person.givenNameSandra
person.identifier.ciencia-idBA1A-5C94-CA3A
person.identifier.ciencia-id0218-71B2-2DE0
person.identifier.ciencia-id4814-5DDB-D43D
person.identifier.orcid0000-0002-5618-5863
person.identifier.orcid0000-0003-0890-6133
person.identifier.orcid0000-0001-7356-8455
person.identifier.orcid0000-0002-0720-2751
person.identifier.orcid0000-0003-1364-0325
person.identifier.ridB-4356-2009
person.identifier.ridE-8053-2011
person.identifier.ridG-1565-2012
person.identifier.scopus-author-id55578915000
person.identifier.scopus-author-id6602470713
person.identifier.scopus-author-id57190384213
person.identifier.scopus-author-id56227228000
person.identifier.scopus-author-id6602323155
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationb7ad5e11-18bf-437d-828e-8adaaa0bfcbb
relation.isAuthorOfPublication80fb07c1-5a2a-4247-a93a-ec2d69c14a81
relation.isAuthorOfPublication429b6d71-328e-42b3-8151-15493de249b8
relation.isAuthorOfPublicationd1c647a0-c4d0-4db2-aaa2-ec1d0107de58
relation.isAuthorOfPublicationf12a3598-821f-4061-afd5-2a9b023ba01c
relation.isAuthorOfPublication.latestForDiscovery429b6d71-328e-42b3-8151-15493de249b8

Files

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

Collections

ISEL - Física - Artigos