Thioamide Compounds as Corrosion Inhibitors for Stainless Steel in H2SO4 Solution

Salari, Mehdi; Motlagh, M. Ghanei

doi:10.5006/1.3516217

Cited by 5 publications

(3 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The values of weight change above 10 ppm concentration of inhibitor shows no change; therefore, this value is taken as the optimum inhibitor concentration. [11][12][28][29][30][31][32][33][34][35][36] …”

Section: Quantum Chemical Studymentioning

confidence: 99%

Electrochemical and Quantum Chemical Studies of Aromatic Amines on the Steel Corrosion in Acid Solution

Hosseini¹,

Salari²,

Jamalizadeh³

et al. 2012

CORROSION

Self Cite

View full text Add to dashboard Cite

SThe corrosion inhibitor efficiency of aromatic amines for mild steel in 0.5 M sulfuric acid (H 2 SO 4 ) was investigated using polarization and weight-loss measurements. The results revealed that these inhibitors exhibit good corrosion inhibition even at a very low concentration. Polarization curves showed that all of the compounds are mixed-type inhibitors. The adsorption of inhibitors is found to obey the Langmuir isotherm. Molecular parameters that are directly related to the corrosion inhibition properties of any compound are investigated using the density functional theory (DFT) quantum chemical method. These results show that the electron pair on oxygen atoms of the nitro group are the preferred site for adsorption of these compounds on an iron surface.

show abstract

Section: Quantum Chemical Studymentioning

confidence: 99%

Electrochemical and Quantum Chemical Studies of Aromatic Amines on the Steel Corrosion in Acid Solution

Hosseini¹,

Salari²,

Jamalizadeh³

et al. 2012

CORROSION

Self Cite

View full text Add to dashboard Cite

show abstract

“…[10][11] Organic corrosion inhibitors are used as a standard method for corrosion control in the oil and gas industry. [12][13][14] They inhibit corrosion by forming an adsorbed organic compound film on the steel surface. Conventional inhibitors are often not very volatile and consequently not useful for TLC prevention because there is no easy way to ensure that they can be transported to the top of the line.…”

Section: Introductionmentioning

confidence: 99%

A Novel Method to Mitigate the Top-of-the-Line Corrosion in Wet Gas Pipelines by Corrosion Inhibitor within a Foam Matrix

Jevremović¹,

Singer²,

Achour³

et al. 2013

CORROSION

View full text Add to dashboard Cite

Top-of-the-line corrosion (TLC) has been a serious issue for the oil and gas industry. Conventional inhibition techniques are expensive and often do not seem to provide enough protection to the steel surface at the top of the pipe. A novel idea is to inject the corrosion inhibitor within a foam matrix. The foam slug is formed first at an injection port and carried along the pipe by the gas phase. This process ensures homogeneous delivery of the inhibitor to the pipe wall along pipe sections suffering from TLC. This paper presents a comprehensive study performed in an innovative glass cell setup which consisted of a foaming cell and a corrosion cell to simulate intermittent contact between the foam and the steel surface. Corrosion measurements were performed using electrochemical techniques (electrochemical impedance spectroscopy [EIS], linear polarization resistance [LPR], potentiodynamic sweep) and electrical resistance (ER) measurements to determine the inhibitive performance of investigated inhibitor talloil diethylenetriamine imidazoline (TOFA/DETA imidazoline) within a foam matrix (sodium C14-16 olefin sulfonate).

show abstract

“…Because of its formability and corrosion resistance, 304 SS is one of the materials which is widely applied in industries [7,8,9]. The corrosion resistance property is due to the protective film of chromium oxyhydroxide [10].…”

Section: Introductionmentioning

confidence: 99%

Corrosion Inhibition of Honeycomb Waste Extracts for 304 Stainless Steel in Sulfuric Acid Solution

et al. 2019

View full text Add to dashboard Cite

The extract of honeycomb waste was studied as a corrosion inhibitor on 304 stainless steel in H2SO4 solutions. The honeycomb waste was obtained from beekeeping at Lawang-Malang, East Java, Indonesia. Electrochemical and scanning electron microscopy methods were used to investigate the performance of the corrosion inhibition process. The inhibition efficiency of the inhibitor (2000 mg/L) reached 97.29% in 0.5 M H2SO4 and decreased with the acid concentration. Kinetic parameters were calculated to explain the effect of acid concentration on the inhibition process. The study on the adsorption behavior of the extracts followed the Frumkin isotherm model. The adsorption of the inhibitor on the 304 stainless steel surface was confirmed by the negative and lower values of Gibbs free energy. The obtained scanning electron microscopy (SEM) images were confirmed by comparing the surface of the specimens with and without inhibitor after corroding for one week. The results indicated that the extract acted as a good inhibitor for 304 stainless steel in acid corrosion.

show abstract

Thioamide Compounds as Corrosion Inhibitors for Stainless Steel in H2SO4 Solution

Cited by 5 publications

References 3 publications

Electrochemical and Quantum Chemical Studies of Aromatic Amines on the Steel Corrosion in Acid Solution

Electrochemical and Quantum Chemical Studies of Aromatic Amines on the Steel Corrosion in Acid Solution

A Novel Method to Mitigate the Top-of-the-Line Corrosion in Wet Gas Pipelines by Corrosion Inhibitor within a Foam Matrix

Corrosion Inhibition of Honeycomb Waste Extracts for 304 Stainless Steel in Sulfuric Acid Solution

Contact Info

Product

Resources

About