Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Extractants Based on Coordinating Liquid Polar Solvents for Removal of Sulfur Compounds from Diesel Fuels

Version 1 : Received: 27 June 2018 / Approved: 27 June 2018 / Online: 27 June 2018 (14:49:03 CEST)

A peer-reviewed article of this Preprint also exists.

Kobotaeva, N.S.; Skorokhodova, T.S.; Andrienko, O.S.; Marakina, E.I.; Sachkov, V.I. Extractants Based on Coordinating Liquid Polar Solvents for Removal of Sulfur Compounds from Diesel Fuels. Appl. Sci. 2018, 8, 1259. Kobotaeva, N.S.; Skorokhodova, T.S.; Andrienko, O.S.; Marakina, E.I.; Sachkov, V.I. Extractants Based on Coordinating Liquid Polar Solvents for Removal of Sulfur Compounds from Diesel Fuels. Appl. Sci. 2018, 8, 1259.

Abstract

To remove sulfur-containing compounds (SCC) from the diesel fraction 200-360 °C extraction systems have been created based on coordinating organic solvents - dimethylformamide and dimethylsulfoxide and chlorides (CoCl2, CuCl2, CdCl2, MnCl2 and CrCl3) and metal trifluoroacetates (Co (TFA)2, Cu(TFA)2 and Mn(TFA)2). Using PMR spectroscopy the coordination of chloride and metal trifluoroacetate on the oxygen atom in the carbonyl group of DMFA was shown to redistribute electron density in the solvent molecule and to enhance properties of the acceptor center localized on the nitrogen atom. The removal of sulfur-containing compounds from the diesel fraction proceeded under mild conditions - at the temperature of 25 °C and atmospheric pressure. The degree of SCC removal from the diesel fraction in 30 minutes extraction was more than 90%. The interaction of organic solvents with metal salts and sulfur-containing compounds of the diesel fraction was considered within the framework of the concept of "hard and soft acids and bases" (HSAB). The most complete SCC extraction was carried out by "DMFA - Mn(TFA)2, MnCl2 and CrCl3 systems, that was probably connected with the implementation of the" hard base - hard acid "system.

Keywords

extractants, sulfur compounds, diesel fraction, coordinating solvents, chlorides, metal trifluoroacetates, dimethylformamide

Subject

Chemistry and Materials Science, Applied Chemistry

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our Diversity statement.

Leave a public comment
Send a private comment to the author(s)
* All users must log in before leaving a comment
Views 0
Downloads 0
Comments 0
Metrics 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.
We use cookies on our website to ensure you get the best experience.
Read more about our cookies here.