Research progress on the cathodic protection current and potential distribution of the tank bottom plate

Kou, Jie; Zhang, Xince; Chen, Gan; Yin, Xiaobin

doi:10.1515/corrrev-2016-0028

Cited by 6 publications

(3 citation statements)

References 25 publications

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“…It is highly desirable to develop technical means to protect metal surfaces and achieve a long-term and efficient anticorrosion. So far, the approaches for protection of metal surfaces mainly include metal material alloying, corrosion inhibitor impregnation treatment, , cathodic protection, , coating protection, , etc. Among those, applying protective or barrier layers to isolate a metallic target item from the surroundings is widely considered as an efficient and popular approach to realize anticorrosion due to its simple operation.…”

Section: Introductionmentioning

confidence: 99%

Ultra-High-Efficiency Corrosion Protection of Metallic Surface Based on Thin and Dense Hexagonal Boron Nitride Coating Films

Tian,

Zhang,

et al. 2024

Langmuir

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Quest for ultrathin and highly effective anticorrosion coating films is critical for both fundamental community of materials science and industrial economics. A two-dimensional hexagonal boron nitride (h-BN) film is a newly developed effective anticorrosion material due to its superior impermeability, thermal stability, and chemical stability. However, research in growth and anticorrosion properties of large-area dense h-BN coating films still lies in its infancy. Here, we report on the synthesis of a large-area and continuous dense fewlayer (∼4) h-BN coating film onto a metal surface by chemical vapor deposition (CVD) and its anticorrosion properties both in air and seawater environments. Cu coated in h-BN, which functions as an anticorrosive coating, exhibits an impressively reduced corrosion rate (CR) in a 3.5% NaCl solution (which mimics a seawater environment) when compared to bare Cu (approximately 27 times). At 200 °C, the h-BN coating can prevent Cu foil's surface from oxidizing, although doing so will cause a significant amount of oxide particles to simultaneously form on the bare Cu surface. In the meantime, the performance of the h-BN film remains unaltered after 100 days in an atmospheric environment, demonstrating the ultrahigh stability and corrosion resistance of the as-grown h-BN film.

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Section: Introductionmentioning

confidence: 99%

Ultra-High-Efficiency Corrosion Protection of Metallic Surface Based on Thin and Dense Hexagonal Boron Nitride Coating Films

Tian,

Zhang,

et al. 2024

Langmuir

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“…Application of electrochemical protection reduces the corrosion rate of protected metals and favors the pH increase due to favorable oxygen reduction on the surface of the protected metal. Te application of internal electrochemical protection with sacrifcial anode is used in water tanks and reservoirs [10]. Moreover, cathodic protection of internal pipe surfaces is used in highly conductive media [11,12].…”

Section: Introductionmentioning

confidence: 99%

Steel Pipe Internal Corrosion Protection Using Magnesium Anode: Impact of Protective Potential and Phase Layer Formation on Corrosion Rate

Vasyliev

Gerasymenko

2023

Advances in Materials Science and Engineering

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The influence of magnesium anode dissolution in pipe filled with potable water on the steel corrosion rate was investigated. Steel corrosion rate was measured using the weight loss technique, and linear polarization resistance measurements were used to estimate the formation kinetics and protective abilities of the phase layer on the metal surface. The cathodic current distribution along steel pipe was measured using a microammeter and compared with the computer model. The results clearly demonstrate that the reduction of metal corrosion rate is at least 2.8 times in the region where cathodic protection distributes inside the pipe. However, for the remaining part of the metal pipe, the reduction of corrosion rate of 1.5 times was obtained due to the formation of the phase layer on the metal surface that leads to the reduction of oxygen supply. The results obtained in the study can be further applied for designing and maintenance of water supply systems.

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“…Data shows that the corrosion problem of oil storage tanks is becoming increasingly prominent (Pu, 2020; Wang, 2021; Kou et al , 2016), which seriously threatens the safe operation of storage tanks and stations (Xu, 2020; Gou et al , 2019). Due to the complex tank area, serious mutual interference-shielding phenomenon, huge grounding system and other characteristics, it is very difficult to protect the tank area from corrosion (Douglas and Mark, 2005).…”

Section: Introductionmentioning

confidence: 99%

Simulation calculation and experimental study of cathodic protection potential distribution in the tank farm

Kou

Ren

2022

ACMM

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Purpose The corrosion problem of the tank bottom plate is growing more and more obvious as the usage period of the tank increases. The purpose of this study is to explore the specific effects of various factors on the potential distribution of the tank bottom plate and propose reasonable cathodic protection measures for tanks through simulation and indoor tests. Design/methodology/approach In this paper, several aspects (such as anode conditions, soil resistivity and so on) impacting the potential distribution of the tank bottom plate are explored by means of indoor tests and MATLAB software simulations, and the related results are presented using Origin software plots. Findings The results show that the potential value of the tank bottom plate is positively shifted with the increase of anode well depth and distance and the decrease of output current, and the overall potential distribution uniformity is higher; the anodic well output current has the greatest influence on potential distribution; to set up regional cathodic protection in the multitank area, the anodic well should be arranged in the central position between multiple tanks. Regional cathodic protection potential distribution for multiple anodes is more uniform, but a reasonable number of anodes should be selected, usually 2–3 anodes. Originality/value This paper provides solid theoretical and technical support for the future establishment of cathodic protection systems in station yards, as well as the renewal and transformation of cathodic protection systems in old tanks, by investigating the influencing factors on the potential distribution of tank bottom plate and verifying them through indoor experiments.

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Research progress on the cathodic protection current and potential distribution of the tank bottom plate

Cited by 6 publications

References 25 publications

Ultra-High-Efficiency Corrosion Protection of Metallic Surface Based on Thin and Dense Hexagonal Boron Nitride Coating Films

Ultra-High-Efficiency Corrosion Protection of Metallic Surface Based on Thin and Dense Hexagonal Boron Nitride Coating Films

Steel Pipe Internal Corrosion Protection Using Magnesium Anode: Impact of Protective Potential and Phase Layer Formation on Corrosion Rate

Simulation calculation and experimental study of cathodic protection potential distribution in the tank farm

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