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DC Field | Value | Language |
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dc.citation.startPage | 116882 | - |
dc.citation.title | WATER RESEARCH | - |
dc.citation.volume | 193 | - |
dc.contributor.author | Mok, Junghoon | - |
dc.contributor.author | Choi, Wonjung | - |
dc.contributor.author | Seo, Yongwon | - |
dc.date.accessioned | 2023-12-21T16:07:39Z | - |
dc.date.available | 2023-12-21T16:07:39Z | - |
dc.date.created | 2021-04-13 | - |
dc.date.issued | 2021-04 | - |
dc.description.abstract | Hydrate-based desalination (HBD), a type of freezing-based desalination, can concentrate salts of saline water and produce fresh water via hydrate crystal formation. In this study, the thermodynamic stability, crystallographic information, and kinetic growth behavior of HFC-152a hydrate were investigated to estimate the desalination efficiency of HBD. The phase equilibria revealed that the HFC-152a hydrate could be formed at a higher temperature in the presence of NaCl (0 wt%, 3.5 wt%, and 8.0 wt%) than the HFC-134a hydrate at 0.3 MPa. The hydration number of the HFC-152a hydrate (sI) was found to be 7.74 through the Rietveld refinement of the powder X-ray diffraction patterns, and it was also used to determine the dissociation enthalpy of the HFC-152a hydrate. The Hu-Lee-Sum correlation was employed to predict the equilibrium shift and hydrate depression temperature of both HFC-152a and HFC-134a hydrates in the presence of NaCl. Faster hydrate growth kinetics and higher hydrate conversion were observed for the HFC-152a hydrate in saline solutions despite the smaller initial driving force at 0.3 MPa and the subcooling temperature of 3 K. Additionally, to quantify the desalination efficiency of the HFC-152a HBD, the maximum achievable salinity and maximum water yield were examined using the HLS correlation. The salt-enrichment efficiency decreased with an increase in the initial salinity and increased with increasing the subcooling. The overall results indicate that HFC-152a is, potentially, a superior candidate for HBD. The novel approach examined in this study will be useful for assessing the desalination efficiency of the HBD process. (c) 2021 Elsevier Ltd. All rights reserved. | - |
dc.identifier.bibliographicCitation | WATER RESEARCH, v.193, pp.116882 | - |
dc.identifier.doi | 10.1016/j.watres.2021.116882 | - |
dc.identifier.issn | 0043-1354 | - |
dc.identifier.scopusid | 2-s2.0-85100416291 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/52684 | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S0043135421000804?via%3Dihub | - |
dc.identifier.wosid | 000625365900012 | - |
dc.language | 영어 | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.title | Evaluation of kinetic salt-en ric hment behavior and separation performance of HFC-152a hydrate-based desalination using an experimental measurement and a thermodynamic correlation | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Engineering, Environmental; Environmental Sciences; Water Resources | - |
dc.relation.journalResearchArea | Engineering; Environmental Sciences & Ecology; Water Resources | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | HFC-152a | - |
dc.subject.keywordAuthor | gas hydrate | - |
dc.subject.keywordAuthor | desalination | - |
dc.subject.keywordAuthor | efficiency | - |
dc.subject.keywordAuthor | water yield | - |
dc.subject.keywordAuthor | subcooling | - |
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