Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/41475
DC FieldValueLanguage
dc.contributor.authorChang, C.M.J.en_US
dc.contributor.author張傑明zh_TW
dc.contributor.authorLee, M.S.en_US
dc.contributor.authorLi, B.C.en_US
dc.contributor.authorChen, P.Y.en_US
dc.date2005zh_TW
dc.date.accessioned2014-06-06T08:05:33Z-
dc.date.available2014-06-06T08:05:33Z-
dc.identifier.issn0378-3812zh_TW
dc.identifier.urihttp://hdl.handle.net/11455/41475-
dc.description.abstractIn this study experimental P-T-x-y equilibrium data for four binary mixtures over a wide range of pressure (10.44-23.54MPa) were determined at 313 K and 333 K. Liquid and vapor densities of carbon dioxide + four fatty acid ester systems, including oleic acid methyl ester, linoleic acid methyl ester, eicosapentacnoic acid ethyl ester, and docosahexaenoic acid ethyl ester were measured by using two circulating systems consisting of two vibrating tube densitometers. The vapor-phase density was observed to increase more significantly with pressure than the liquid-phase density at constant temperature. Experimental equilibrium constants of oleic acid methyl ester and linoleic acid methyl ester were found to be larger than those of eicosapentaenoic acid ethyl ester, docosahaxaenoic acid ethyl ester, linoleic acid, triolein, and tocopherol. This indicates that the two methylated fatty acids would be extracted easier than the other compounds in a separation process using supercrifical CO2 extraction. The equilibrium data were successfully correlated using the Peng-Robinson and modified Soave-Redlich-Kwong equations of state with quadratic (two parameters), Panagiotopoulos-Reid (three parameters), and Adachi-Sugie (three parameters) mixing rules. In general, the Soave-Redlich-Kwong equation of state with the Panagiotopoulos-Reid mixing rules and the quadratic mixing rules give the best correlation for methylated fatty acids and ethylated fatty acids, respectively. (c) 2005 Elsevier B.V. All rights reserved.en_US
dc.language.isoen_USzh_TW
dc.relationFluid Phase Equilibriaen_US
dc.relation.ispartofseriesFluid Phase Equilibria, Volume 233, Issue 1, Page(s) 56-65.en_US
dc.relation.urihttp://dx.doi.org/10.1016/j.fluid.2005.04.008en_US
dc.subjectvapor-liquid equilibriaen_US
dc.subjectoleic acid methyl esteren_US
dc.subjectlinoleic acid methylen_US
dc.subjectesteren_US
dc.subjecteicosapentaenoic acid ethyl esteren_US
dc.subjectdocosahexaenoic acid ethylen_US
dc.subjectesteren_US
dc.subjectdensity measurementen_US
dc.subjectequation of state and correlationen_US
dc.subjectx-y diagramsen_US
dc.subjectsupercritical carbon-dioxideen_US
dc.subjectconstantsen_US
dc.subjectmixturesen_US
dc.subjectequationen_US
dc.subjectethanolen_US
dc.subjectstateen_US
dc.titleVapor-liquid equilibria and densities of CO2 with four unsaturated fatty acid esters at elevated pressuresen_US
dc.typeJournal Articlezh_TW
dc.identifier.doi10.1016/j.fluid.2005.04.008zh_TW
item.languageiso639-1en_US-
item.openairetypeJournal Article-
item.cerifentitytypePublications-
item.grantfulltextnone-
item.fulltextno fulltext-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
Appears in Collections:化學工程學系所
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