Izvorni znanstveni članak
https://doi.org/10.17794/rgn.2021.5.12
POTENTIAL OF USING PLANT EXTRACTS AS GREEN CORROSION INHIBITORS IN THE PETROLEUM INDUSTRY
Katarina Žbulj
; University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering, Zagreb, Croatia
Gordana Bilić
; University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering, Zagreb, Croatia
Lidia Hrnčević
; University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering, Zagreb, Croatia
Katarina Simon
; University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering, Zagreb, Croatia
Sažetak
In this paper, preliminary studies of ten different plant extracts as potential corrosion inhibitors of carbon steel were examined. For each extract, the concentration range in which it shows anti-corrosion action was first determined, and then the most effective concentration was determined for each extract. The tests were performed in a brine solution saturated with CO2 at room temperature. The aim of this study was to isolate extracts with high effectiveness and subsequent electrochemical and surface methods to determine the mechanism of inhibitory action. For this purpose, potentiodynamic polarization was performed with Tafel extrapolation. Among all the tested extracts, lady’s mantle (92.17%) and dandelion root (95.07%) stood out with their effectiveness. Both tested extracts showed the behaviour of a mixed corrosion inhibitor with a dominant influence on the anode process.
Ključne riječi
CO2 corrosion; petroleum industry; carbon steel; plan extracts; green corrosion inhibitors
Hrčak ID:
266327
URI
Datum izdavanja:
24.11.2021.
Posjeta: 941 *