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Intermolecular interactions in the fuel dispersion and its influence on the mechanism of additives action
Oil and gas processing, chemistry of oil and gas

Authors: Sofiya Tikhonovna BASHKATOVA was born in 1944. In 1967 she graduated from the M.V. Lomonosov Moscow Institute of Fine Chemical Technology. Dr. of Science, professor of physical and colloidal chemistry chair of Gubkin Russian State University of Oil and Gas, She is the author of 118 publications. Е-mail: sophy@comail.ru
Vladimir Arnoldovich VINOKUROV was born in 1950. In 1972 graduated from Gubkin Moscow Institute of Oil and Gas Industry (now Gubkin Russian State University of Oil and Gas). Doctor of Chemistry, professor, Head of Physical and Colloidal Chemistry Chair of Gubkin Russian State University of Oil and Gas. The author of 250 publications. Е-mail: vinok_ac@mail.ru

Abstract: At present different additives are used to improve the quality of diesel fuels (DF). At the same time it is impossible to understand the mechanism of additives influence on the quality of DF. Today DFs are regarded as fuel dispersions (FDs) because of their properties: heterogeneity and dispersity. All known additives are surface-active substances (SAS). We used different experimental methods to prove the intermolecular interactions (IMI) in FD with additives or without them. We proved the existence of IMI, which are responsible for the formation of special structures in FD and these structures are responsible for its quality. Moreover we also proved that addition of different additives in FD decreases the surface tension. We established the correlation between decreasing surface tension and increasing effect of additives in DF. Thus we proved first that mechanism of action of the different additives in FD is connected with increasing stability of FD in the presence of additives so as any SAS increases the stability of classic dispersions.

Index UDK: 541.41: 665.733.035

Keywords: diesel fuels, additives, improvement of the quality, stability of the fuel dispersions, intermolecular interactions