Highly Efficient and Multi-Functional Corrosion Inhibitor for Carbon Steel at Different Temperatures

A new aromatic Schiff base with azo linkage (AS) has been synthesized and characterized by FT-IR, 1H NMR and 13C NMR spectroscopic techniques. The new compound (AS) has been evaluated as carbon steel corrosion inhibitor at different concentrations (0.005, 0.01, 0.02, 0.04 and 0.08 mM) and different temperatures (303 – 333 K). The corrosion inhibition efficiency was studied by potentiodynamic polarization and weight loss measurements. The effects of concentration and temperature on the inhibition efficiency were studied by potentiodynamic polarization studies, the results showed that increasing concentration of AS increases the inhibition efficiency while increasing the temperature decreases it, the highest corrosion inhibition efficiency, 93.9% was recorded with 0.08 mM of AS at 313 K in 1 M H2SO4. Weight loss measurements showed that the inhibition efficiency reached 97.1% in the presence of AS (0.08 mM) at 313 K. The adsorption process was found to obey Langmuir isotherm, and the adsorption thermodynamic parameters were studied. Scanning electron microscope (SEM) was used to confirm the results.

Download Full-text

Experimental and theoretical investigation of 3,3′-diamino dipropyl amine: Highly efficient corrosion inhibitor for carbon steel in 2 N HCl at normal and elevated temperatures

Journal of Molecular Structure ◽

10.1016/j.molstruc.2020.129598 ◽

2020 ◽

pp. 129598

Author(s):

Harish Kumar ◽

Manju Kumari

Keyword(s):

Carbon Steel ◽

Corrosion Inhibitor ◽

Theoretical Investigation ◽

Elevated Temperatures ◽

Highly Efficient

Download Full-text

Highly efficient corrosion inhibitor for C1020 carbon steel during acid cleaning in multistage flash (MSF) desalination plant

Desalination ◽

10.1016/j.desal.2019.114100 ◽

2019 ◽

Vol 470 ◽

pp. 114100 ◽

Cited By ~ 9

Author(s):

Aeshah H. Alamri ◽

I.B. Obot

Keyword(s):

Carbon Steel ◽

Corrosion Inhibitor ◽

Acid Cleaning ◽

Highly Efficient ◽

Desalination Plant

Download Full-text

Mercaptopropionic acid-modified oleic imidazoline as a highly efficient corrosion inhibitor for carbon steel in CO2-saturated formation water

Corrosion Science ◽

10.1016/j.corsci.2021.109930 ◽

2021 ◽

pp. 109930

Author(s):

Ziqi Zheng ◽

Junying Hu ◽

Noam Eliaz ◽

Li Zhou ◽

Xi Yuan ◽

...

Keyword(s):

Carbon Steel ◽

Corrosion Inhibitor ◽

Saturated Formation ◽

Formation Water ◽

Mercaptopropionic Acid ◽

Highly Efficient

Download Full-text

Didecyl dimethyl ammonium chloride as a highly efficient corrosion inhibitor for carbon steel in hydrochloric acid solution

Anti-Corrosion Methods and Materials ◽

10.1108/acmm-06-2021-2503 ◽

2021 ◽

Vol ahead-of-print (ahead-of-print) ◽

Author(s):

Xiaojing Wei ◽

Jue Wang ◽

Xin Shi ◽

Feng Zhou ◽

Duolong Gao ◽

...

Keyword(s):

Carbon Steel ◽

Hydrochloric Acid ◽

Acid Solution ◽

Corrosion Inhibitor ◽

Ammonium Chloride ◽

Hydrochloric Acid Solution ◽

Content Type ◽

Highly Efficient ◽

Dimethyl Ammonium Chloride ◽

Dimethyl Ammonium

Purpose This paper aims to discover a highly efficient corrosion inhibitor for 45# steel in hydrochloric acid solution and reveal the mechanism of inhibitors. Design/methodology/approach In this paper, electrochemical measurements, weight loss measurements, surface characterization and theoretical calculation are used to evaluate the inhibition performance and reveal the mechanism of inhibitors. Findings Results show that didecyl dimethyl ammonium chloride (DDAC), especially in combination with dodecane phenol plyoxyethylene, could provide a good protection performance for the carbon steel in hydrochloric acid. The N atoms and long alkyl chains in DDAC molecular structure play the vital role. Originality/value Usually, DDAC is used as the compound chemical disinfectant in oilfield sterilization, medicine and health. However, to the best of the authors’ knowledge, no study has shown that it can mitigate the corrosion of carbon steels in HCl solution.

Download Full-text