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Coal gas adsorption/desorption isotherms versus diffusion process

dc.contributor.authorRodrigues, Cristina
dc.contributor.authorDinis, Maria Alzira Pimenta
dc.contributor.authorLemos de Sousa, M. J.
dc.date.accessioned2019-10-22T10:54:21Z
dc.date.available2019-10-22T10:54:21Z
dc.date.issued2016
dc.descriptionhttp://sherpa.ac.uk/romeo/issn/1758-2083/pt_PT
dc.description.abstractIn the present work, the authors studied two meta-anthracite samples from Douro Coalfield (NW of Portugal) in which classical sorption isotherms were carried out, using CO2 only. Results have demonstrated that whenever the CO2 is adsorbed in the coal pores/matrix it will be enduringly fixed up to, approximately, pressures of 32 bar in sample A and 34 bar in sample B. Since the gas release process it intensely related to diffusion coefficients, it is crucial to define their evolution on the two analyses reported in this paper. So, during adsorption, diffusion coefficients decrease in sample A from 4.66736E-08 to 1.23490E-09 cm2/sec (6.72 and 48.13 bar) and during desorption they increase from 7.61829E-09 to 1.09908E-08 cm2/sec (45.68 and 11.48 bar). In sample B, diffusion coefficients decrease from 2.47409E-08 to 2.11813E-09 cm2/sec (7.53 and 47.17 bar) in adsorption and increase in desorption from 1.48767E-09 to 2.83736E-08 cm2/sec (42.22 and 7.71 bar).pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationAPA: Rodrigues, C. F., Dinis, M. A. P., & Lemos de Sousa, M. J. (2016). Coal Gas Adsorption/Desorption Isotherms versus Diffusion Process. International Journal of Global Warming, 9(4), 467-485. doi:10.1504/ijgw.2016.076332pt_PT
dc.identifier.doi10.1504/IJGW.2016.076332pt_PT
dc.identifier.issn1758-2091
dc.identifier.urihttp://hdl.handle.net/10284/8154
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherInderscience Publisherspt_PT
dc.relation.publisherversionhttp://www.inderscience.com/offer.php?id=76332pt_PT
dc.subjectGas diffusion coefficientpt_PT
dc.subjectCO2 geological sequestrationpt_PT
dc.subjectIsothermspt_PT
dc.subjectSorption (Adsorption/Desorption)pt_PT
dc.titleCoal gas adsorption/desorption isotherms versus diffusion processpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage485pt_PT
oaire.citation.issue4pt_PT
oaire.citation.startPage467pt_PT
oaire.citation.titleInternational Journal of Global Warmingpt_PT
oaire.citation.volume9pt_PT
person.familyNameRodrigues
person.familyNameDinis
person.familyNameLemos de Sousa
person.givenNameCristina Fernanda Alves
person.givenNameMaria Alzira Pimenta
person.givenNameManuel João
person.identifier493996
person.identifier493603
person.identifier.ciencia-id7419-A932-CEC5
person.identifier.ciencia-id4710-147D-FDAF
person.identifier.ciencia-idD513-C4C7-E740
person.identifier.orcid0000-0002-7616-6985
person.identifier.orcid0000-0002-2198-6740
person.identifier.orcid0000-0001-6527-6196
person.identifier.ridF-3309-2011
person.identifier.scopus-author-id55925912600
person.identifier.scopus-author-id55539804000
person.identifier.scopus-author-id6602492063
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication0fefd103-d5e6-455d-b7b7-06440a7f4229
relation.isAuthorOfPublication1e85592a-e8e2-4aea-bd8e-1007c94388c0
relation.isAuthorOfPublication580f4519-5525-4616-8174-c912b1a3c88f
relation.isAuthorOfPublication.latestForDiscovery0fefd103-d5e6-455d-b7b7-06440a7f4229

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