In 2019,Fuel Processing Technology included an article by Andevary, Hojatollah Haji; Akbari, Azam; Omidkhah, Mohammadreza. Product Details of 616-47-7. The article was titled 《High efficient and selective oxidative desulfurization of diesel fuel using dual-function [Omim]FeCl4 as catalyst/extractant》. The information in the text is summarized as follows:
Lewis acidic ionic liquid (IL) of 1-octyl-3-methylimidazolium tetrachloroferrates ([Omim]FeCl4) with an interesting structure, was synthesized and introduced as a highly effective catalyst and also as extractive solvent in oxidative desulfurization (ODS) of model and real diesel fuels with H2O2 oxidant. FT-IR, H-NMR and TG-DSC anal. were used for characterization of the prepared ILs. GC-FID, GC-PFPD and GC-MS measurements were also employed to investigate the ODS yields and mechanism. The adequate structure and acidic properties of [Omim]FeCl4 allowed removal of thiophenic compounds with high efficiency in an extraction and then oxidation process. The effects of the major processing variables on ODS performance of [Omim]FeCl4 were studied in detail. At the optimal conditions of VIL/Voil of 1/10, O/S molar ratio of 5, reaction time of 15 min and room temperature, BT and DBT were totally eliminated, and 4,6-DMDBT was removed by 99% from the model diesel. Moreover, [Omim]FeCl4 was able to desulfurize two real diesel fuels containing 590 and 2573 ppmw of sulfur with the efficiency of 85% and 61.2%, resp., at a short time of 15 min. The exptl. results also showed a remarkable selectivity of 0.919 for elimination of thiophenic compounds in competition with non-sulfur aromatic model of 2-Me naphthalene. [Omim]FeCl4 exhibited an excellent recyclability with no significant decline in activity after use in 7 reaction cycles. An overall mechanism was also suggested for desulfurization by the proposed system. In the experimental materials used by the author, we found 1-Methyl-1H-imidazole(cas: 616-47-7Product Details of 616-47-7)
1-Methyl-1H-imidazole(cas: 616-47-7) is actively involved in removing acid during the production of diethoxyphenylphosphine. It is used as an intermediate in organic synthesis.Product Details of 616-47-7
Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem