The author of 《Toward an Understanding of the Forces Behind Extractive Desulfurization of Fuels with Ionic Liquids》 were Player, Lisa C.; Chan, Bun; Lui, Matthew Y.; Masters, Anthony F.; Maschmeyer, Thomas. And the article was published in ACS Sustainable Chemistry & Engineering in 2019. Product Details of 174501-65-6 The author mentioned the following in the article:
In this study, the extractive desulfurization of model fuel oil with ionic liquids (ILs) has been studied in an attempt to gain insights into the dominant forces controlling the extraction efficiencies of aromatic sulfur compounds, thiophene and dibenzothiophene. This work investigates the intrinsic properties of a series of common ILs based on a constant (molar) amount of IL to directly draw insights into the intrinsic properties of each IL’s extraction capability. Exptl. both the cation and anion size influenced the efficiency of extraction, following the trend pyridinium > imidazolium > pyrrolidinium for the cation and [NTf2]- > [OTf]- > [PF6]- > [BF4]- for the anion. Similar trends are observed for both thiophene and dibenzothiophene. D. functional theory modeling, using the APFD method, was employed to quantify the complexation energies and corresponding dispersion contributions between thiophene and the cations as well as between thiophene and the anions used in this work, showing a similar trend to the exptl. results. Through a combination of exptl. and computational analyses it is suggested that the dominant force in extraction is dispersion-driven binding between the ions and S-compounds In the experiment, the researchers used 3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate(cas: 174501-65-6Product Details of 174501-65-6)
3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate(cas: 174501-65-6) is a member of lonic liquids. Actually, lonic liquids as innovative fluids have received wide attention only during the past two decades. The number of SCI papers published on lonic liquids has exponentially increased from a few in 1996 to >5000 in 2016, exceeding the annual growth rates of other popular scientific areas. Product Details of 174501-65-6
Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem