The potential of using plant extracts as green corrosion inhibitors in the petroleum industry

Scientific paper - Original scientific paper

• Title (croatian): Mogućnost primjene biljnih ekstrakata kao zelenih inhibitora korozije u naftnoj industriji
• Author: Katarina Žbulj
• Author: Gordana Bilić
• Author: Lidia Hrnčević
• Author: Katarina Simon
• Author's institution: University of Zagreb; Faculty of Mining, Geology and Petroleum Engineering; (Department of Petroleum and Gas Engineering and energy)
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Basic Technical Sciences

Abstract (english)

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.

Abstract (croatian)

U ovome radu provedena su preliminarna ispitivanja deset različitih biljnih ekstrakata kao potencijalnih korozijskih inhibitora ugljičnoga čelika. Za svaki ekstrakt najprije je određen raspon koncentracija u kojemu pokazuje antikorozijsko djelovanje, a potom je za svaki ekstrakt određena najdjelotvornija koncentracija. Ispitivanja su provedena u sintetskoj slojnoj vodi zasićenoj s CO2 pri sobnoj temperaturi. Cilj rada bio je izdvojiti ekstrakte s visokim djelotvornostima te naknadnim elektrokemijskim i površinskim metodama utvrditi mehanizam inhibitorskoga djelovanja. U tu svrhu provedena je potenciodinamička polarizacija s Tafelovom ekstrapolacijom. Od svih ispitanih ekstrakata sa svojim djelotvornostima izdvajaju se vrkuta (92,17 %) i korijen maslačka (95,07 %). Oba ispitana ekstrakta pokazala su ponašanje mješovitoga korozijskog inhibitora s dominantnim utjecajem na anodni proces.

• Keywords (english): CO2 corrosion; petroleum industry; carbon steel; plan extracts; green corrosion inhibitors
• Keywords (croatian): CO2 korozija; naftna industrija; ugljični čelik; biljni ekstrakti; zeleni inhibitori korozije
• Language: english
• Publication type: Scientific paper - Original scientific paper
• Publication status: Published
• Peer review: Peer review - international
• Publication version: Published version
• Journal title: Rudarsko-geološko-naftni zbornik
• Numbering: vol. 36, no. 5, pp. 131-139
• p-ISSN: 0353-4529
• e-ISSN: 1849-0409
• DOI: https://doi.org/10.17794/rgn.2021.5.12
• URN:NBN: urn:nbn:hr:169:491957
• Publication: 2021
• Document URL: https://hrcak.srce.hr/266327
• Type of resource: Text
• Access conditions: Open access
• Created on: 2025-03-03 08:22:32