Novel inhibitors for carbon steel pipelines corrosion during acidizing of oil and gas wells | ||||
| Journal of Basic and Environmental Sciences | ||||
| Volume 2, Issue 2, April 2015, Page 36-51 PDF (1.1 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jbes.2024.369584 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| M.A. Hegazy1; A.Y. El-Etre2; K. M. Berry2 | ||||
| 1Egyptian Petroleum Research Institute (EPRI), Nasr City, Cairo, Egypt | ||||
| 2Chemistry Dept., Faculty of Science, Benha University, Benha, Egypt | ||||
| Abstract | ||||
| The inhibition effect of three novel Schiff bases on corrosion of carbon steel was studied in 1 M HCl solution. The inhibition efficiency was measured by weight loss, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) methods. The obtained results showed that the prepared Schiff bases are very good corrosion inhibitors. The adsorption of inhibitors on carbon steel surface obeys Longmuir adsorption isotherm. The adsorption of these Schiff bases involves two types of interaction physical and chemical adsorption. The inhibition efficiency increases with increasing inhibitor concentration and temperature. Quantum chemistry calculations for the geometrical full optimization of the inhibitors were calculated. | ||||
| Keywords | ||||
| Steel; Weight loss; Polarization; EIS; Acid inhibition | ||||
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