STUDY OF S235 STEEL CORROSION PROCESS IN WASTEWATER FROM THE PETROCHEMICAL INDUSTRY

Julieta Daniela  CHELARU; Liana Maria  MUREŞAN

doi:10.24193/subbchem.2019.2.27

STUDY OF S235 STEEL CORROSION PROCESS IN WASTEWATER FROM THE PETROCHEMICAL INDUSTRY

Authors

Julieta Daniela CHELARU Department of Chemical Engineering, Faculty of Chemistry and Chemical Engineering, Babeş-Bolyai University, Cluj-Napoca, Romania. Email: jdchelaru@chem.ubbcluj.ro. https://orcid.org/0000-0001-5861-5073
Liana Maria MUREŞAN Department of Chemical Engineering, Faculty of Chemistry and Chemical Engineering, Babeş-Bolyai University, Cluj-Napoca, Romania. Email: limur@chem.ubbcluj.ro. https://orcid.org/0000-0002-2891-2947

DOI:

https://doi.org/10.24193/subbchem.2019.2.27

Keywords:

electrochemical impedance spectroscopy, polarization curves, steel corrosion, corrosion inhibitors, petroleum industry corrosion

Abstract

The aim of this study is to investigate the corrosion behavior of low carbon steel (S235) used in petrochemical industry. The corrosion process was analyzed in simulated wastewater at different values of pH and at different temperatures and also in real wastewater from the exploitation of crude oil from Transylvania, Romania. Two commercial corrosion inhibitors (Nalco 73413 (Nalco Products, USA,) and Galoryl IC20 (ArrMazz Chemicals SAS, USA) were tested at different concentrations. The corrosion behavior was investigated by electrochemical impedance spectroscopy and potentiodynamic polarization measurements. Adsorption of these inhibitors was found to obey Langmuir adsorption isotherm.

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Published

2019-06-28

How to Cite

CHELARU, J. D. ., & MUREŞAN, L. M. . (2019). STUDY OF S235 STEEL CORROSION PROCESS IN WASTEWATER FROM THE PETROCHEMICAL INDUSTRY. Studia Universitatis Babeș-Bolyai Chemia, 64(2), 323–333. https://doi.org/10.24193/subbchem.2019.2.27