scholarly journals Corrosion Inhibition of N80 Steel by Newly Synthesized Imidazoline Based Ionic Liquid in 15% HCl Medium: Experimental and Theoretical Investigations

2021 ◽  
pp. ArticleID:211139
Author(s):  
Lei Guo ◽  
Keyword(s):  
Ionic Liquid ◽  
Corrosion Inhibition ◽  
N80 Steel ◽  
Theoretical Investigations ◽  
Hcl Medium

Corrosion inhibition effect of novel methyl benzimidazolium ionic liquid for carbon steel in HCl medium

2016 ◽  
Vol 221 ◽  
pp. 368-380 ◽  
Author(s):  
Perumal Kannan ◽  
Jeyakumar Karthikeyan ◽  
Palanichamy Murugan ◽  
Toleti Subba Rao ◽  
Nallaiyan Rajendran
Keyword(s):  
Ionic Liquid ◽  
Carbon Steel ◽  
Corrosion Inhibition ◽  
Inhibition Effect ◽  
Hcl Medium

scholarly journals Experimental and Theoretical Investigations on the Corrosion Inhibition action of Thiadiazole Derivatives on Carbon Steel in 1M HCl medium

2020 ◽  
Vol 36 (6) ◽  
pp. 1179-1188
Author(s):  
REEJA JOHNSON ◽  
JOBY THOMAS KAKKASSERY ◽  
Vinod Raphael Palayoor ◽  
Ragi Kooliyat ◽  
Vidhya Thomas Kannanaikkal
Keyword(s):  
Carbon Steel ◽  
Corrosion Inhibition ◽  
Quantum Chemical ◽  
Electrochemical Impedance ◽  
Corrosion Monitoring ◽  
Mechanism Of Inhibition ◽  
Theoretical Investigations ◽  
Thiadiazole Derivatives ◽  
Derivatives Of ◽  
Hcl Medium

Novel thiadiazole derivatives of Schiff bases namely (E)-N-(anthracen-9-ylmethylene)-5-(4-nitrophenyl)-1,3,4-thiadiazol-2-amine (A9CNPTDA) and N-(anthracen-9(10H)-ylidene)-5-(4-nitrophenyl)-1,3,4-thiadiazol-2-amine (ANNPTDA) were synthesized, characterized and corrosion inhibition behaviour, as well as the mechanism of inhibition were investigated by different monitoring techniques like gravimetric measurements, electrochemical impedance spectroscopy, potentiodynamic polarization, quantum chemical and SEM studies. Both of the thiadiazole derivatives showed excellent corrosion inhibitor action on carbon Steel in acid medium. A9CNPTDA exhibited highest inhibition efficiency of 98.04% at 1mM concentration while ANNPTDA showed a maximum of 95.32%. In HCl medium, both derivatives obeyed Langmuir adsorption isotherm and thermodynamic parameters (Kads, ΔG0ads) were calculated. An acceptable relationship was observed between the results of quantum chemical calculations and other corrosion monitoring analysis.

scholarly journals Mannich Base as Corrosion Inhibitors for N80 Steel in a CO2 Saturated Solution Containing 3 wt % NaCl

Materials ◽  
2019 ◽  
Vol 12 (3) ◽  
pp. 449 ◽  
Author(s):  
Mingjin Tang ◽  
Jianbo Li ◽  
Zhida Li ◽  
Luoping Fu ◽  
Bo Zeng ◽  
...  
Keyword(s):  
Corrosion Inhibitor ◽  
Corrosion Inhibition ◽  
Steel Sheet ◽  
Mannich Base ◽  
Saturated Solution ◽  
Control Group ◽  
Protective Film ◽  
Blank Control Group ◽  
Inhibition Effect ◽  
N80 Steel

In this paper, a corrosion inhibitor containing nitrogen atoms and a conjugated π bond was synthesised, and its final product synthesised by the optimal conditions of the orthogonal test results is named multi-mannich base (MBT). The corrosion inhibition effect on the N80 steel sheet of the corrosion inhibitor was evaluated in a CO2 saturated solution containing 3 wt % NaCl; the corrosion rate was 0.0446 mm/a and the corrosion inhibition rate was 90.4%. Through electrochemical and adsorption theory study, MBT is a mixed corrosion inhibitor that mainly shows cathode suppression capacity. The adsorption of MBT on the surface of the steel sheet follows the Langmuir adsorption isotherm; it can be spontaneously adsorbed on the surface of the N80 steel sheet, which has a good corrosion inhibition effect. The surface of the N80 steel sheet was microscopically characterised by atomic force microscope (AFM). It can be seen from the results that the N80 steel sheet with MBT added is significantly different from the blank control group; the surface of the steel sheet is relatively smooth, indicating that MBT forms an effective protective film on the surface of N80 steel, which inhibits the steel sheet.

scholarly journals Corrosion Inhibition of Tubing Steel during Acidization of Oil and Gas Wells

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
M. Yadav ◽  
Sumit Kumar ◽  
P. N. Yadav
Keyword(s):  
Corrosion Inhibition ◽  
Oil And Gas ◽  
Ac Impedance ◽  
Charge Transfer Resistance ◽  
Gas Production ◽  
Oil Well ◽  
Transfer Resistance ◽  
Oil And Gas Production ◽  
N80 Steel ◽  
High Degree

Acidization is an oil reservoir stimulation technique for increasing oil well productivity. Hydrochloric acid is used in oil and gas production to stimulate the formation. The acid treatment occurs through N80 steel tubes. The process requires a high degree of corrosion inhibition of tubing material (N80 steel). In the present investigation effect of synthesized amino acid compounds, namely, acetamidoleucine (AAL) and benzamidoleucine (BAL) as corrosion inhibitors for N80 steel in 15% HCl solution was studied by polarization, AC impedance (EIS), and weight loss measurements. It was found that both the inhibitors were effective inhibitors and their inhibition efficiency was significantly increased with increasing concentration of inhibitors. Polarization curves revealed that the studied inhibitors represent mixed type inhibitors. AC impedance studies revealed that charge transfer resistance increases and double layer capacitance decreases in presence of inhibitors. Adsorption of inhibitors at the surface of N80 steel was found to obey Langmuir isotherm.

Corrosion inhibition of N80 steel in 10% HCl + 8% HBF4solution

2019 ◽  
Vol 66 (1) ◽  
pp. 1-10
Author(s):  
Juan Du ◽  
Yuning He ◽  
Pingli Liu ◽  
Yigang Liu ◽  
Xianghai Meng ◽  
...  
Keyword(s):  
Corrosion Inhibition ◽  
Design Methodology ◽  
X Ray Diffraction ◽  
Corrosion Morphology ◽  
Content Type ◽  
X Ray ◽  
N80 Steel ◽  
Corrosion Reaction ◽  
Hydrolysis Of ◽  
Scanning Electron

PurposeThis paper aims to analyze the corrosion and corrosion inhibition of N80 in 10 per cent HCl + 8 per cent fluoroboric acid (HBF4) solution for acidizing operation.Design/methodology/approachThe corrosion rate, kinetic parameters (Ea, A) and thermodynamic parameters (ΔH, ΔS) of N80 steel in fresh acid and spent acid, 10 per cent HCl + 8 per cent HBF4, 10 per cent HCl and 8 per cent HBF4solutions were calculated through immersion tests. The corrosion and inhibition properties were studied through X-ray diffraction and electrochemical measurements. The corrosion morphology of the corrosion product was examined by scanning electron microscopy (SEM).FindingsThe results demonstrated that the spent acid was the main cause of acidification corrosion, and the HBF4would cause serious corrosion to N80 steel. The results showed that the N80 steel was more seriously corroded in the spent acid than in fresh acid, and the hydrolysis of HBF4accelerates the dissolution process of N80 steel anode to control the corrosion reaction. The results showed that the acidification will definitely cause serious corrosion to the oil tube; therefore, necessary anti-corrosion measures must be taken in the acidification process.Originality/valueThe results showed that acidizing the formation with 10 per cent HCl + 8 per cent HBF4will definitely cause serious corrosion to the oil tube, especially when the spent acid flows back. Therefore, necessary anti-corrosion measures must be taken in the acidification process, especially in the spent acid flowback stage.

The Effect of Regional Selectivity on the Corrosion Inhibition Properties of Synthetic Ionic Liquid with the Synergistic Action of Cation and Anion

2021 ◽  
Author(s):  
Jian Sun ◽  
Xinyue Wang ◽  
huajing Gao ◽  
Feng Chen ◽  
Xing-Bao Wang ◽  
...  
Keyword(s):  
Weight Loss ◽  
Ionic Liquid ◽  
Ionic Liquids ◽  
Hybrid Systems ◽  
Corrosion Inhibition ◽  
Synergistic Action ◽  
Weight Loss Method ◽  
Loss Method ◽  
Regional Selectivity

By adding different proportions of N-buthylimidazole and carboxyethylthiosuccinic acid (CETSA), three hybrid systems of ionic liquids were synthesized and named ILHS1, ILHS2 and ILHS3. By using weight loss method, electrochemical...

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