Show simple item record

dc.contributor.authorZabar, Muhannad
dc.contributor.authorNguyen, C.V.
dc.contributor.authorPhan, Chi
dc.date.accessioned2020-06-02T02:17:50Z
dc.date.available2020-06-02T02:17:50Z
dc.date.issued2020
dc.identifier.citationZabar, M.K. and Nguyen, C.V. and Phan, C.M. 2020. Quantifying the influence of salinity on spontaneous emulsification of hydrocarbons. Colloids and Surfaces A: Physicochemical and Engineering Aspects. 588: Article No. 124376.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/79507
dc.identifier.doi10.1016/j.colsurfa.2019.124376
dc.description.abstract

© 2019 Elsevier B.V. This study has investigated the process of oil-in-water spontaneous emulsification using the hydrophobic force of a non-ionic surfactant (Triton X-114) and inorganic salt additive (NaCl). The cloud point of surfactant solutions with different salt concentrations was examined and show a gradual decrease from 27 °C to 18.5 °C when increasing the salinity from 0 to 5 M. The adsorption of Triton X-114 into the oil-water interface has spontaneously enlarged the surface excess concentration of oil droplet in the system, leading to the decrease in surface tension and the spontaneous formation of oil droplets in water. Increasing the concentration of salt additive caused an increment in ions’ penetration into the hydrophilic layer of surfactants, resulting in the formation of smaller droplets. Increasing the chain-length of the oil from C7 (n-heptane) to C16 (n-hexadecane) produced a decrease of 58.6 % in droplet diameter. According, a newly-proposed model was developed and fitted against experimental data to obtain the best-fitted parameters of maximum droplet size (D0) and ion adsorbent constant (Kion). The data and modelling results verify the influence of the interfacial layer on the emulsions’ size and stability.

dc.languageEnglish
dc.publisherELSEVIER
dc.subjectScience & Technology
dc.subjectPhysical Sciences
dc.subjectChemistry, Physical
dc.subjectChemistry
dc.subjectSpontaneous emulsification
dc.subjectTriton X-114
dc.subjectNaCl
dc.subjectDYNAMIC INTERFACIAL-TENSION
dc.subjectWATER-IN-OIL
dc.subjectNONIONIC SURFACTANT
dc.subjectDROPLETS
dc.subjectSIZE
dc.subjectNANOEMULSIONS
dc.subjectMECHANISMS
dc.subjectEMULSIONS
dc.subjectMIXTURES
dc.subjectBEHAVIOR
dc.titleQuantifying the influence of salinity on spontaneous emulsification of hydrocarbons
dc.typeJournal Article
dcterms.source.volume588
dcterms.source.issn0927-7757
dcterms.source.titleColloids and Surfaces A: Physicochemical and Engineering Aspects
dc.date.updated2020-06-02T02:17:50Z
curtin.departmentWASM: Minerals, Energy and Chemical Engineering
curtin.accessStatusFulltext not available
curtin.facultyFaculty of Science and Engineering
curtin.contributor.orcidNguyen, Van Cuong [0000-0003-0307-2969]
curtin.contributor.orcidPhan, Chi [0000-0002-1565-8193]
curtin.contributor.researcheridPhan, Chi [P-3775-2015]
curtin.identifier.article-numberARTN 124376
dcterms.source.eissn1873-4359
curtin.contributor.scopusauthoridNguyen, Van Cuong [56843313800]
curtin.contributor.scopusauthoridPhan, Chi [7004175765]
dc.date.embargoEnd2021-12-19


Files in this item

Thumbnail
Thumbnail

This item appears in the following Collection(s)

Show simple item record