Naslov
New solvents for extraction of thiophene from the mixture with n-hexane

Autori
Sander, Aleksandra ; Dujmenović, Mladena ; Žužić, Maja

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of abstracts: 15th Ružička days "Today science - tomorrow industry" / Šubarić, Drago - Osijek, 2014, 47-47

ISBN
978-953-7005-34-4

Skup
XV. Ružičkini dani "Danas znanost - sutra industrija"

Mjesto i datum
Osijek, Hrvatska, 11.09.2014. - 12.09.2014

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
deep eutectic solvents; desulfurization; ionic liquids; liquid-liquid extraction

Sažetak
Desulphurisation and denitrification of petrol and diesel fuels is one of the leading problems in the oil and petrochemical industry. Today, more and more scientists are researching ways to adapt existing processes and also developing new technologies that would ensure the desired quality of liquid fuels. Liquid-liquid extraction by eco-friendly solvents is especially interesting because extraction as a process can be carried out at mild process conditions. The use of ionic liquids in extraction desulphurization processes is the object of a large number of investigations. Lately, ionic liquid mixtures and deep eutectic solvents are used as selective solvents. Ionic liquids and deep eutectic solvents posses excellent properties that satisfy the majority of the needs that have to be fulfilled when choosing a solvent. Apart from them being nonvolatile, a key factor for extraction is to ensure a high selectivity towards the components that need to be extracted from the liquid mixture and to achieve high mass transfer rates. In this work the possibility of using a mixture of two ionic liquids at different mass ratios ([C2mim][EtSO4]-[C5mim][Tf2N] ; [C2mim][EtSO4]-[C6mmPy] [Tf2N] ; [C2mim][EtSO4]-[bzmim][Tf2N] and [C6mmPy] [Tf2N]- [bzmim][Tf2N]) and also the use of an deep eutectic solvent choline chloride:glycerol (1:2, n) as seletive solvents in the separation of tiophene and n-hexane by liquid-liquid extraction has been investigated. Raffinate of higher purity is gained by using a ionic liquid mixture that has higher fractions of the more effective ionic liquid in the mixture. Ionic liquids and their mixtures are more adequate solvents for the separation of tiophene and n-hexane than deep eutectic solvent choline chloride:glycerol.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

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