Liquid-Liquid Extraction of Naphthenic Acid Using Thiocyanate Based Ionic Liquids

In this work the de-acidification of dodecane was investigated using [DBU] based ionic liquid with thiocyanate [SCN] anion. The liquid-liquid equilibrium data for ternary mixture of {dodecane + naphthenic acid + [DBU-Hex][SCN]} were experimentally determined at a constant temperature and pressure. T...

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Bibliographic Details
Published in:Procedia engineering 2016, Vol.148, p.662-670
Main Authors: Najmuddin, Rabiatul Adawiyah, Mutalib, M.I. Abdul, Shah, Syed Nasir, Suleman, Humbul, Lethesh, Kallidanthiyil Chellappan, Pilus, Rashidah Binti Mohd, Maulud, Abdulhalim Shah
Format: Article
Language:English
Subjects:
Ionic liquids (ILs)
Liquid-liquid equilibrium (LLE)
Naphthenic acid
Non-Random Two Liquid (NRTL)
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Summary:In this work the de-acidification of dodecane was investigated using [DBU] based ionic liquid with thiocyanate [SCN] anion. The liquid-liquid equilibrium data for ternary mixture of {dodecane + naphthenic acid + [DBU-Hex][SCN]} were experimentally determined at a constant temperature and pressure. The ternary diagram shows that all the tie lines have a positive slope at all concentration of naphthenic acid, thus indicating that the ionic liquid is enough for the de-acidification of dodecane. The liquid-liquid equilibrium data was correlated using non-random two liquid (NRTL) model. An extremely good fit was obtained for all the tie lines using the NRTL model.
ISSN:1877-7058
1877-7058
DOI:10.1016/j.proeng.2016.06.534