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DC Field | Value | Language |
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dc.citation.endPage | 9748 | - |
dc.citation.number | 12 | - |
dc.citation.startPage | 9742 | - |
dc.citation.title | LANGMUIR | - |
dc.citation.volume | 26 | - |
dc.contributor.author | Lee, Seungmin | - |
dc.contributor.author | Seo, Yongwon | - |
dc.date.accessioned | 2023-12-22T07:08:09Z | - |
dc.date.available | 2023-12-22T07:08:09Z | - |
dc.date.created | 2014-10-30 | - |
dc.date.issued | 2010-06 | - |
dc.description.abstract | We measured hydrate phase equilibria for the ternary CH4 (90%)+ C3H8 (10%)+ water mixtures in silica gel pores with nominal diameters of 6.0, 15.0, 30.0, and 100.0 nm and for the quaternary CH4 (90%)+ C3H8 (10%) + NaCl + water mixtures of two different NaCl concentrations (3 and 10 wt%) in silica gel pores with nominal diameters of 6.0, 15.0, and 30.0 nm. The CH4 (90%)+ C 3H8 (10%) hydrate-water interfacial tension (σHW) of 42 ± 3mJ/m2 was obtained through the Gibbs-Thomson equation for dissociation within cylindrical pores. With this value, the experimental results were in good agreement with the calculated ones based on the van der Waals and Platteeuw model. A correction term for the capillary effect and a Pitzer model for electrolyte solutions were adopted to calculate the activity of water in the aqueous electrolyte solutionswithin silica gel pores. At a specified temperature, three-phaseH-LW- Vequilibriumcurves of pore hydrateswere shifted to higher-pressure regions depending on pore sizes and NaCl concentrations. From the cage-dependent 13CNMR chemical shifts of enclathrated guest molecules, the mixed CH4 (90%)+ C3H8 (10%) gas hydrate was confirmed to be structure II. | - |
dc.identifier.bibliographicCitation | LANGMUIR, v.26, no.12, pp.9742 - 9748 | - |
dc.identifier.doi | 10.1021/la100466s | - |
dc.identifier.issn | 0743-7463 | - |
dc.identifier.scopusid | 2-s2.0-78649624767 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/8063 | - |
dc.identifier.url | http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=78649624767 | - |
dc.identifier.wosid | 000278427600080 | - |
dc.language | 영어 | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Experimental Measurement and Thermodynamic Modeling of the Mixed CH4 + C3H8 Clathrate Hydrate Equilibria in Silica Gel Pores: Effects of Pore Size and Salinity | - |
dc.type | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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