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dc.contributor.authorYamaguchi, T.
dc.contributor.authorNiitsuma, T.
dc.contributor.authorNair, Balagopal
dc.contributor.authorNakagawa, K.
dc.date.accessioned2017-01-30T13:06:51Z
dc.date.available2017-01-30T13:06:51Z
dc.date.created2008-11-12T23:21:48Z
dc.date.issued2007
dc.identifier.citationYamaguchi, Takeo and Niitsuma, Takuya and Nair, Balagopal and Nakagawa, Kazuaki. 2007. Lithium silicate based membranes for high temperature CO2 separation. Journal of Membrane Science 294: 16-21.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/28732
dc.identifier.doi10.1016/j.memsci.2007.01.028
dc.description.abstract

Processing and characterisation of a novel membrane system for CO2 separation is detailed. The membrane was made of Lithium Orthosilicate (Li4SiO4), which has potential to react with CO2 molecules reversibly at high temperature. Using the membrane, a separation factor of 5.5 was measured between CO2 and N2 gas molecules at a temperature of 525C. The gas permeance value through the membrane at 525C was around 10-8 mol/m2 s Pa. Ionic diffusion through the liquid phase electrolyte and solid phase skeleton, produced by the reaction between CO2 and Li4SiO4,was suggested to assist the selective permeance of CO2. This facilitation effect was experimentally identified by examining the variation in CO2 flux with partial pressure. Oxygen ion conductivity through the skeleton material, Li2SiO3, is reportedly very high and therefore charge balance should have been achieved by O2- transfer through the skeleton.

dc.publisherElsevier B.V
dc.subjectCO2 separation
dc.subjectAbsorption
dc.subjectFacilitation
dc.subjectMembrane
dc.subjectLithium
dc.titleLithium silicate based membranes for high temperature CO2 separation
dc.typeJournal Article
dcterms.source.volume294
dcterms.source.startPage16
dcterms.source.endPage21
dcterms.source.titleJournal of Membrane Science
curtin.note

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curtin.identifierEPR-2167
curtin.accessStatusOpen access
curtin.facultyDepartment of Applied Chemistry
curtin.facultyDivision of Engineering, Science and Computing
curtin.facultyFaculty of Science


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