Influence of Selected Surfactants and High-Octane Oxygen Components on Water Content, Electrolytic Conductivity in Gasoline, and Interfacial Tension in the Water/Gasoline System

Tomasz Kalak , Barbara Strus

Abstract

The influence of selected surfactants and oxygen containing components on solubility of water, electrolytic conductivity in gasoline, and interfacial tension in the water/gasoline system was studied. Anionic sodium bis-(2-ethylhexyl)sulfosuccinate (AOT), the branched alkylamine Primene JM-T, and some hydrophilic additives (alcohols and methyl tert-butyl ether) were examined. Slight amounts of amphiphilic substances can improve the solubility of water, and they may cause the association phenomena with the formation of reverse micelles. Hydrophilic groups of the compounds are located inside the micelles, in which the water pools can be contained. Surfactant aggregates and droplet clusters are contained in the microemulsion solution due to the dipolar interaction between the dispersed droplets. The formation of these structures induces an increase in the solubility of water in gasoline. The improvement of electrolytic conductivity depends on the type and concentration of surfactants and hydrophilic additives. Conductivity is very sensitive to microemulsion structure and it significantly increases because of the presence of reverse micelles, which are able to transport charges. Correlation between conductivity, water content, and interfacial tension has been analyzed. On the basis of the calculated coefficients, the closest correlation between these parameters was osberved in the case of the addition of AOT and hydrophilic components.
Author Tomasz Kalak (WT / KTiEPP)
Tomasz Kalak,,
- Department of Industrial Products and Ecology
, Barbara Strus - Politechnika Poznańska (PP)
Barbara Strus,,
-
Journal seriesEnergy & Fuels, ISSN 0887-0624, (A 35 pkt)
Issue year2014
Vol28
No3
Pages1926-1939
Publication size in sheets0.65
Keywords in Polishbenzyna, surfaktanty, wysokooktanowe związki tlenowe, rozpuszczalność wody, zjawiska asocjacji, przewodnictwo właściwe, napięcie międzyfazowe
Keywords in Englishgasoline, surfactants, high-octane oxygen containing additives, solubility of water, association phenomena, electrolytic conductivity, interfacial tension
ASJC Classification1500 General Chemical Engineering; 2102 Energy Engineering and Power Technology; 2103 Fuel Technology
DOIDOI:10.1021/ef4018338
URL https://pubs.acs.org/doi/abs/10.1021/ef4018338
Languageen angielski
Score (nominal)35
Score sourcejournalList
ScoreMinisterial score = 35.0, 10-05-2020, ArticleFromJournal
Ministerial score (2013-2016) = 35.0, 10-05-2020, ArticleFromJournal
Publication indicators WoS Citations = 3; Scopus SNIP (Source Normalised Impact per Paper): 2014 = 1.502; WoS Impact Factor: 2014 = 2.79 (2) - 2014=3.282 (5)
Citation count*5 (2020-08-07)
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
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