2014
DOI: 10.1080/10916466.2011.653466
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Deep Desulfurization of Model Oil by Extraction with a Low-viscosity Ionic Liquid [BMIM]SCN

Abstract: In this work, a low-viscosity ionic liquid 1-buthyl-3-methylimidazole thiocyanate ([BMIM]SCN) was utilized as extractant for the extractive desulfurization of thiophene in model oil. Several conditions were investigated respectively, including extraction time, temperature, and volume ratio of ionic liquid to model oil. Also the kinetics of extraction of thiophene were proposed. Under the optimal extractive conditions, the removal of thiophene in model oil was 55.6%. Other sulfur compounds and real oil were als… Show more

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Cited by 13 publications
(5 citation statements)
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“…25 The reaction process between MIm and alkyl thiocyanate (RSCN) for the preparation of thiocyanate-based ILs, as shown in Figure 1a, was chosen as the object of the present study since the C�N bonds in the reactants and products have strong infrared characteristic peaks and can be easily characterized. 26 More importantly, ILs synthesized from imidazole and thiocyanate have important applications in the extraction of model oils for deep desulfurization, 27 separation of cresols from coal tar, 28 and as corrosion inhibitors for the steel in H 2 SO 4 and HCl media. 29 Thus, in this work, the effects of the alkyl chain length of substrate thiocyanate on reaction kinetics and microdynamics between MIm and thiocyanate with methyl, ethyl, and butyl groups (MeSCN, EtSCN, BuSCN) for the synthesis of thiocyanate-based ILs were investigated by means of in situ FTIR, AIMD and MD simulations.…”
Section: Introductionmentioning
confidence: 99%
“…25 The reaction process between MIm and alkyl thiocyanate (RSCN) for the preparation of thiocyanate-based ILs, as shown in Figure 1a, was chosen as the object of the present study since the C�N bonds in the reactants and products have strong infrared characteristic peaks and can be easily characterized. 26 More importantly, ILs synthesized from imidazole and thiocyanate have important applications in the extraction of model oils for deep desulfurization, 27 separation of cresols from coal tar, 28 and as corrosion inhibitors for the steel in H 2 SO 4 and HCl media. 29 Thus, in this work, the effects of the alkyl chain length of substrate thiocyanate on reaction kinetics and microdynamics between MIm and thiocyanate with methyl, ethyl, and butyl groups (MeSCN, EtSCN, BuSCN) for the synthesis of thiocyanate-based ILs were investigated by means of in situ FTIR, AIMD and MD simulations.…”
Section: Introductionmentioning
confidence: 99%
“…In addition, the ionic liquids with thiocyanate-based anion show important applications in the extraction of model oils for deep desulfurization, 27 separation of cresols from coal tar, 28 and as corrosion inhibitors for steel. 29 Therefore, in this work, the effects of the alkyl chain length of the imidazole nucleophile on reaction kinetics and microenvironments between the alkylimidazole (MIm, EIm, and BIm) nucleophile and MeSCN substrate were investigated using in situ FTIR and MD simulations.…”
Section: Introductionmentioning
confidence: 99%
“…They proved that the larger π electron density of dicationic ILs can produce stronger π–π interactions and hence obtain high S-extraction efficiency . Gao and group have also studied the performance of various types of ILs such as N -butylpyrridinium-based ILs, FeCl 3 containing Lewis acidic ILs, and [bmim]­[SCN]. Our previous research work on phosphonium-based ILs, trihexyl tetradecyl phosphonium chloride, trihexyl tetradeycyl phosphonium hexafluorophosphate, and trihexyl teradecyl (bis­(TMP))­phosphinate showed great affinity toward sulfur removal. ,, …”
Section: Introductionmentioning
confidence: 99%