《Extractive desulfurization of fuels using diglycol based deep eutectic solvents》 was published in Journal of Environmental Chemical Engineering in 2020. These research results belong to Jha, Divyam; Haider, Mohd Belal; Kumar, Rakesh; Balathanigaimani, Marriyappan Sivagnanam. Formula: C19H18BrP The article mentions the following:
In this work, the effect of Deep Eutectic Solvents (DESs) on sulfur extraction of organo-sulfur compounds was investigated. Different DESs were prepared using a common hydrogen bond donor, Diglycol, and different hydrogen bond acceptors. The effects of experiment variables such as temperature, DESs/feed ratio, and the time on desulfurization efficiency of different organo-sulfur compounds were also studied. Results show that Tetra Bu ammonium bromide based DES showed relatively higher sulfur removal capabilities (Dibenzothiophene (DBT): -92%, 2- Methylthiophene (2-MT): -86% and Thiophene (T): -71%) as compared to other DESs. Also, all DESs have higher DBT extraction efficiency followed by 2-MT and T. Further, non-random two liquids (NRTL) thermodn. model was employed to model liquid-liquid equilibrium The experimental part of the paper was very detailed, including the reaction process of Methyltriphenylphosphonium bromide(cas: 1779-49-3Formula: C19H18BrP)
Methyltriphenylphosphonium bromide(cas: 1779-49-3) is an organophosphorus compound, with potential use as a precursor and a solvent in organic synthesis. And it is used widely for methylenation via the Wittig reaction.Formula: C19H18BrP
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary