Liquid–liquid equilibria for methanol + hexadecane + heterocyclic nitrogen-containing compounds at 298.15 K

Aromatic sulfur‐nitrogen extraction using ionic liquids: Experiments and predictions using an a priori model

“…The sign of the tie- line slope change also depends on the type of molecular interaction. For example, the ternary system of {n-Hexane 1 pyridine 1 IL} shows a positive slope, 13 whereas {hexa-decane 1pyridine 1 methanol} 48 6 ]} shows both positive and negative slope in the triangular diagram. 49 An important observation from Figures 2-4 indicates that the mole fraction of IL in raffinate phase is zero.…”

Extraction of nitrogen compounds from diesel fuel using imidazolium- and pyridinium-based ionic liquids: Experiments, COSMO-RS prediction and NRTL correlation

“…From the NMR analysis of the pure compounds, the identification peak for pyrrole is between 6 [EMIM] cation, the H atom connected to the C atom in between the two N atoms shows peak at 9.42 whereas the two H atoms connected near the N atom in the [EMPY] cation shows two peaks at 9.10 and 9.20, respectively. n-hexadecane as model diesel compound shows peak between 0.88 and 1.31 due to its nature as a straight-chain alkane.…”

“…Table 1 shows the values of distribution coefficient (D) and selectivity (S) for various organic solvents which have been reported for extractive denitrogenation at 298.15 K and atmospheric pressure. Won et al investigated the use of methanol to remove both 5-membered and 6-membered nitrogen compounds from n-hexadecane, considered as the model diesel compound [6]. Higher values of D and S were reported for 5-membered compounds (pyrrole, indole and aniline) than for 6-membered nitrogen compounds (pyridine, quinoline, and acridine).…”

Liquid–liquid equilibria of ternary mixtures of dimethyl carbonate, diphenyl carbonate, phenol and water at 358.15K

“…The uncertainty of the calculated mole fractions was estimated to be less than ±1 × 10 −4 . The procedure is described in detail elsewhere [10].…”