A detailed DOE study on temperature, concentration and their interactions on corrosion protection of carbon steel

Subject Areas : journal of New Materials

Sirus Javadpour ¹ (materials science and engineering department, school of engineering, Shiraz University, Shiraz, Iran)
Mohammad Ebrahim Bahrololoom ² (materials science and engineering department, school of engineering, Shiraz University, Shiraz, Iran)
Morteza Roodaki ³ (Materials science and engineering, school of engineering, Shiraz University)

Received: 2021-12-05 Accepted : 2022-02-21 Published : 2021-11-22

Keywords: Corrosion Inhibitor, Central Composite Experimental Design, Electrochemical measurements, FTIR. HNMR,

Abstract :

An imidazoline based inhibitor was synthesized using oleic acid and diethylenetriamine (DETA). The characteristic properties of the synthesized inhibitor were investigated by FTIR and HNMR tests. Tafel polarization technique and electrochemical impedance spectroscopy (EIS) were used to study the electrochemical and corrosion inhibition properties of the inhibitor in CO2 saturated 3% NaCl solution. Potassium iodide was added to the corrosion media to enhance the inhibition efficiency of the inhibitor. The measured corrosion rates were optimized by Design Expert 10.0.7 software using central composite design and response surface method. Temperature and inhibitor concentration were selected as the most effective parameters. Analyses of variance (ANOVA) were performed on the results of the designed experiments. It was found that temperature and inhibitor concentration effects on corrosion rate and inhibition efficiency are complicated and their interactions. Addition of KI to the inhibitor system had a synergistic effect on the corrosion inhibition. It almost eliminated the dependency of the corrosion rate to temperature and inhibitor concentration which is a great achievement in inhibitor applications in oil and gas industries. DOE data revealed that the best inhibition of corrosion occurred at 25oC with 37.7ppm of synthesized Imidazoline inhibitor and 2000ppm KI. It is estimated by the software that at this point the corrosion rate is 6µm/year and polarization resistance is 30788Ω. The synthesized inhibitor conforms perfectly to the Langmuir adsorption isotherm.

References:

1. Koch, G., Cost of corrosion, in Trends in Oil and Gas Corrosion Research and Technologies, A.M. El-Sherik, Editor. 2017, Woodhead Publishing: Boston. p. 3-30.


2. Ding, Y., et al., Effect of Temperature on Adsorption Behavior and Corrosion Inhibition Performance of Imidazoline-Type Inhibitor. CORROSION 2017, 2017. All Days.


3. Heydari, M. and M. Javidi, Corrosion inhibition and adsorption behaviour of an amido-imidazoline derivative on API 5L X52 steel in CO₂-saturated solution and synergistic effect of iodide ions. Corrosion Science, 2012. 61: p. 148-155.


4. Jawich, M.W.S., G.A. Oweimreen, and S.A. Ali, Heptadecyl-tailed mono- and bis-imidazolines: A study of the newly synthesized compounds on the inhibition of mild steel corrosion in a carbon dioxide-saturated saline medium. Corrosion Science, 2012. 65: p. 104-112.


5. Zhang, X., et al., Study of the inhibition mechanism of imidazoline amide on CO₂ corrosion of Armco iron. Corrosion Science, 2001. 43(8): p. 1417-1431.


6. حیدری, م. and م. جاویدی, مطالعه الکتروشیمیایی بازدارندگی یکی از مشتقات ایمیدازولین بر خوردگی CO₂ فولاد کربنی ساده و اثر یونهای ید بر عملکرد آن. فصلنامه علمی - پژوهشی مواد نوین, 2011. 2(6): p. 71-84.


7. Farelas, F. and A. Ramirez, Carbon Dioxide Corrosion Inhibition of Carbon Steels Through Bis-imidazoline and Imidazoline Compounds Studied by EIS International Journal of ELECTROCHEMICAL SCIENCE, 2010. 5: p. 797 - 814.


8. Ikeda, A., S. Mukai, and M. Ueda, Corrosion Behavior of 9 to 25% Cr Steels in Wet CO₂ Corrosion, 1985. 41(4): p. 185-192.


9. Bentiss, F., M. Traisnel, and M. Lagrenee, Influence of 2,5-bis(4-dimethylaminophenyl)-1,3,4-thiadiazole on corrosion inhibition of mild steel in acidic media. Journal of Applied Electrochemistry, 2001. 31(1): p. 41-48.


10. Okafor, P.C., et al., Inhibition of CO₂ corrosion of N80 carbon steel by carboxylic quaternary imidazoline and halide ions additives. Journal of Applied Electrochemistry, 2009. 39(12): p. 2535-2543.


11. Zheng, X., et al., Experimental and theoretical studies of two imidazolium-based ionic liquids as inhibitors for mild steel in sulfuric acid solution. Corrosion Science, 2015. 95: p. 168-179.


12. Abbasov, V.M., et al., Synthesis of imidazoline derivatives on the basis of triethylenetetramine and naphthenic acids and research of imidazoline derivatives as corrosion inhibitor. 2015. 5: p. 21-23.


13. Bajpai, D. and V.K. Tyagi, Fatty Imidazolines: Chemistry, Synthesis, Properties and Their Industrial Applications. Journal of Oleo Science, 2006. 55(7): p. 319-329.


14. Cruz, J., Martínez-Aguilera, L. M. R., Salcedo, R., Castro, M., Reactivity properties of derivatives of 2-imidazoline: an ab initio DFT study. International Journal of Quantum Chemistry, 2001. 85(4-5): p. 546-556.


15. Ramachandran Sunder, T.B.-L., et al., Self-Assembled Monolayer Mechanism for Corrosion Inhibition of Iron by Imidazolines. Langmuir, 1996. 12(26): p. 6419-6428.


16. Wang, D.L., S. Ying, Y. Wang, M. Xiao, H. Chen, Z., Theoretical and experimental studies of structure and inhibition efficiency of imidazoline derivatives. Corrosion Science, 1999. 41(10): p. 1911-1919.


17. TYAGI, D.B.a.V.K., Fatty Imidazolines: Chemistry, Synthesis, Properties and Their Industrial Applications. JOURNAL OF OLEO SCIENCE, 2006. 55(7): p. 319-329.


18. Bhatti, M.S., et al., RSM and ANN modeling for electrocoagulation of copper from simulated wastewater: Multi objective optimization using genetic algorithm approach. Desalination, 2011. 274(1): p. 74-80.


19. Desimone, M.P., et al., Amphiphilic amido-amine as an effective corrosion inhibitor for mild steel exposed to CO₂ saturated solution: Polarization, EIS and PM-IRRAS studies. Electrochimica Acta, 2011. 56(8): p. 2990-2998.


20. He, X., et al., Inhibition properties and adsorption behavior of imidazole and 2-phenyl-2-imidazoline on AA5052 in 1.0M HCl solution. Corrosion Science, 2014. 83: p. 124-136.


21. Jo, M.-S., et al., An analysis of synergistic and antagonistic behavior during BTEX removal in batch system using response surface methodology. Journal of Hazardous Materials, 2008. 152(3): p. 1276-1284.


22. Okafor, P.C., X. Liu, and Y.G. Zheng, Corrosion inhibition of mild steel by ethylamino imidazoline derivative in CO₂-saturated solution. Corrosion Science, 2009. 51(4): p. 761-768.


23. Pan, C., J. Mao, and W. Jin, Effect of Imidazoline Inhibitor on the Rehabilitation of Reinforced Concrete with Electromigration Method. Materials, 2020. 13: p. 398.


24. Ravikumar, K., et al., Optimization of batch process parameters using response surface methodology for dye removal by a novel adsorbent. Chemical Engineering Journal, 2005. 105(3): p. 131-138.


25. Tyagi, R., V.K. Tyagi, and S.K. Pandey, Imidazoline and Its Derivatives: An Overview. Journal of oleo science, 2007. 56: p. 211-22.


26. Buchanan, R.A. and E.E. Stansbury, Electrochemical Corrosion. Handbook of Environmental Degradation of Materials, 2005: p. 81-103.


27. Imanieh, I., et al., Experiments design for hardness optimization of the Ni-Cr alloy electrodeposited by pulse plating. Acta Metallurgica Sinica (English Letters), 2013. 26(5): p. 558-564.


28. Divya, B. and T.V. K., Synthesis and characterization of imidazolinium surfactants derived from tallow fatty acids and diethylenetriamine. European Journal of Lipid Science and Technology, 2008. 110(10): p. 935-940.


29. Okafor, P., et al., Inhibition of CO₂ corrosion of N80 carbon steel by carboxylic Quaternary imidazoline and halide ions additives. Journal of Applied Electrochemistry, 2009. 39: p. 2535-2543.


30. Umoren, S., U. Eduok, and E. Oguzie, Corrosion Inhibition of Mild Steel in 1 M H2SO4 by Polyvinyl Pyrrolidone and Synergistic Iodide Additives. Portugaliae Electrochimica Acta, 2007. 26: p. 533-546.


31. Ituen, E., O. Akaranta, and A. James, Evaluation of Performance of Corrosion Inhibitors Using Adsorption Isotherm Models: An Overview. Chemical Science International Journal, 2017. 18: p. 1-34.


32. Migahed, M.M.A., et al., Synthesis of some novel non ionic surfactants based on tolyltriazole and evaluation their performance as corrosion inhibitors for carbon steel. Egyptian Journal of Petroleum, 2013. 22: p. 149–160.


33. Shaban, S., et al., Evaluation of some cationic surfactants based on dimethylaminopropylamine as corrosion inhibitors. Journal of Industrial and Engineering Chemistry, 2014. 21.