Experimental Verification of Methane-Carbon Dioxide Replacement in Natural Gas Hydrates Using a Differential Scanning Calorimeter

Cited 133 time in webofscience Cited 0 time in scopus
  • Hit : 269
  • Download : 0
DC FieldValueLanguage
dc.contributor.authorLee, Seungminko
dc.contributor.authorLee, Yohanko
dc.contributor.authorLee, Jaehyoungko
dc.contributor.authorLee, Huenko
dc.contributor.authorSeo, Yongwonko
dc.date.accessioned2016-07-07T07:03:19Z-
dc.date.available2016-07-07T07:03:19Z-
dc.date.created2013-12-23-
dc.date.created2013-12-23-
dc.date.created2013-12-23-
dc.date.issued2013-11-
dc.identifier.citationENVIRONMENTAL SCIENCE TECHNOLOGY, v.47, no.22, pp.13184 - 13190-
dc.identifier.issn0013-936X-
dc.identifier.urihttp://hdl.handle.net/10203/210206-
dc.description.abstractThe methane (CH4) - carbon dioxide (CO2) swapping phenomenon in naturally occurring gas hydrates is regarded as an attractive method of CO2 sequestration and CH4 recovery. In this study, a high pressure microdifferential scanning calorimeter (HP mu-DSC) was used to monitor and quantify the CH4 - CO2 replacement in the gas hydrate structure. The HP mu-DSC provided reliable measurements of the hydrate dissociation equilibrium and hydrate heat of dissociation for the pure and mixed gas hydrates. The hydrate dissociation equilibrium data obtained from the endothermic thermograms of the replaced gas hydrates indicate that at least 60% of CH4 is recoverable after reaction with CO2, which is consistent with the result obtained via direct dissociation of the replaced gas hydrates. The heat of dissociation values of the CH4 + CO2 hydrates were between that of the pure CH4 hydrate and that of the pure CO2 hydrate, and the values increased as the CO2 compositions in the hydrate phase increased. By monitoring the heat flows from the HP mu-DSC, it was found that the noticeable dissociation or formation of a gas hydrate was not detected during the CH4 - CO2 replacement process, which indicates that a substantial portion of CH4 hydrate does not dissociate into liquid water or ice and then forms the CH4 + CO2 hydrate. This study provides the first experimental evidence using a DSC to reveal that the conversion of the CH4 hydrate to the CH4 + CO2 hydrate occurs without significant hydrate dissociation.-
dc.languageEnglish-
dc.publisherAMER CHEMICAL SOC-
dc.subjectPOROUS SILICA-GELS-
dc.subjectPHASE-EQUILIBRIA-
dc.subjectDISSOCIATION ENTHALPIES-
dc.subjectCLAPEYRON EQUATION-
dc.subjectHIGH-PRESSURE-
dc.subjectLIQUID CO2-
dc.subjectBEHAVIOR-
dc.subjectRECOVERY-
dc.subjectPROPANE-
dc.subjectETHANE-
dc.titleExperimental Verification of Methane-Carbon Dioxide Replacement in Natural Gas Hydrates Using a Differential Scanning Calorimeter-
dc.typeArticle-
dc.identifier.wosid000327360600070-
dc.identifier.scopusid2-s2.0-84888263512-
dc.type.rimsART-
dc.citation.volume47-
dc.citation.issue22-
dc.citation.beginningpage13184-
dc.citation.endingpage13190-
dc.citation.publicationnameENVIRONMENTAL SCIENCE TECHNOLOGY-
dc.identifier.doi10.1021/es403542z-
dc.contributor.localauthorLee, Huen-
dc.contributor.nonIdAuthorLee, Seungmin-
dc.contributor.nonIdAuthorLee, Yohan-
dc.contributor.nonIdAuthorLee, Jaehyoung-
dc.contributor.nonIdAuthorSeo, Yongwon-
dc.type.journalArticleArticle-
dc.subject.keywordPlusPOROUS SILICA-GELS-
dc.subject.keywordPlusPHASE-EQUILIBRIA-
dc.subject.keywordPlusDISSOCIATION ENTHALPIES-
dc.subject.keywordPlusCLAPEYRON EQUATION-
dc.subject.keywordPlusHIGH-PRESSURE-
dc.subject.keywordPlusLIQUID CO2-
dc.subject.keywordPlusBEHAVIOR-
dc.subject.keywordPlusRECOVERY-
dc.subject.keywordPlusPROPANE-
dc.subject.keywordPlusETHANE-
Appears in Collection
CBE-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 133 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0