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dc.contributor.authorStaib, G
dc.contributor.authorSakurovs, R
dc.contributor.authorGray, E MacA
dc.date.accessioned2017-05-03T15:25:51Z
dc.date.available2017-05-03T15:25:51Z
dc.date.issued2014
dc.identifier.issn0166-5162
dc.identifier.doi10.1016/j.coal.2014.08.005
dc.identifier.urihttp://hdl.handle.net/10072/65593
dc.description.abstractThe increasing interest in enhanced coal bed methane (ECBM) production and reporting of greenhouse gas emissions from mines has spotlighted gas diffusion and gas-induced swelling in coals. Although it is generally agreed that carbon dioxide (CO2) diffuses faster than methane (CH4) in coal and that diffusion rates decline as the pressure is increased, there is no general agreement on the physical mechanism responsible. In this paper kinetic data for sorption-induced swelling for five Australian bituminous coals have been analysed. Gases investigated included CO2 and CH4, Xe and ethane. It was found that swelling rates are influenced by gas type. CH4 swelled coal more slowly than CO2 at the same pressures. Other swelling kinetic data showed that, of the gases investigated, xenon was the slowest, followed by ethane. CO2 swelling was found to be the fastest overall. The swelling rate was found to depend on maceral composition, with the slower-swelling coals being vitrinite-rich. However, the swelling rate of different coals varied differently with increasing pressure: the slowest swelling coal showed an increase in swelling rates with an increase in system pressure, whereas the fastest swelling coals showed a decrease in the swelling rates at high pressures.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.languageEnglish
dc.language.isoeng
dc.publisherElsevier
dc.publisher.placeNetherlands
dc.relation.ispartofstudentpublicationN
dc.relation.ispartofpagefrom117
dc.relation.ispartofpageto122
dc.relation.ispartofjournalInternational Journal of Coal Geology
dc.relation.ispartofvolume132
dc.rights.retentionY
dc.subject.fieldofresearchGeology
dc.subject.fieldofresearchGeology not elsewhere classified
dc.subject.fieldofresearchPhysical geography and environmental geoscience
dc.subject.fieldofresearchPhysical geography and environmental geoscience not elsewhere classified
dc.subject.fieldofresearchResources engineering and extractive metallurgy
dc.subject.fieldofresearchResources engineering and extractive metallurgy not elsewhere classified
dc.subject.fieldofresearchcode3705
dc.subject.fieldofresearchcode370599
dc.subject.fieldofresearchcode3709
dc.subject.fieldofresearchcode370999
dc.subject.fieldofresearchcode4019
dc.subject.fieldofresearchcode401999
dc.titleKinetics of coal swelling in gases: Influence of gas pressure, gas type and coal type
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.facultyGriffith Sciences, School of Natural Sciences
gro.hasfulltextNo Full Text
gro.griffith.authorGray, Evan M.


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