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Electrochemical Corrosion Monitoring in Low Conductive Fluid: Pilot-Scale Study on Sulfolane Corrosion Potential

1
Department of Chemistry, University of Silesia, Szkolna 9, 40-007 Katowice, Poland
2
Silesian University of Technology, Konarskiego 18, 44-100 Gliwice, Poland
3
Central Mining Institute, Plac Gwarków 1, 40-007 Katowice, Poland
*
Authors to whom correspondence should be addressed.
Presented at the Innovations-Sustainability-Modernity-Openness Conference (ISMO’19), Bialystok, Poland, 22–23 May 2019.
Proceedings 2019, 16(1), 5; https://doi.org/10.3390/proceedings2019016005
Published: 12 June 2019
PDF [1256 KB, uploaded 12 June 2019]

Abstract

Solvents are a group of chemical compounds that are widely used in organic synthesis. Taking into account the chemical nature, solvents are divided into protic and aprotic ones. An attractive alternative to commonly used industrial extractive liquids is an anthropogenic, organosulfur medium—sulfolane. Sulfolane is a five-membered heterocyclic sulfur–organic compound from the group of sulfones (R-SO2-R’, where R/R’ is alkyl, alkenyl, or aryl), which contains an apolar hydrocarbon backbone and a polar functional group. It is a selective solvent in the liquid–liquid and liquid–vapor extraction processes used for the removal of close-boiling alkanes from cycloalkanes or for the separation of compounds with different degrees of saturation and polarity in the extractive rectification of arenes from non-aromatic saturated hydrocarbon mixtures. In standard conditions sulfolane is not an aggressive solvent for steel, but at higher temperature (170–180 °C) and oxygen availability, it may be decomposed and subsequently some corrosive (by-)products can be formed. The primary purpose of the presented pilot-case examination was to verify applicability of the industrial, multi-electrochemical technique for reliable detection of the corrosion processes in low conductive fluids.
Keywords: corrosion; sulfolane; aprotic solvent; carbon steel corrosion; sulfolane; aprotic solvent; carbon steel
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Świetlicka, A.; Środa, A.; Kozik, V.; Bąk, A.; Barbusiński, K.; Howaniec, N.; Smoliński, A. Electrochemical Corrosion Monitoring in Low Conductive Fluid: Pilot-Scale Study on Sulfolane Corrosion Potential. Proceedings 2019, 16, 5.

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