Cause analysis and preventive measures of pipeline corrosion and leakage accident in alkylation unit

Tang, Zhenhua; Wang, Zhirong; Lu, Yawei; Sun, Peipei

doi:10.1016/j.engfailanal.2021.105623

Cited by 9 publications

(2 citation statements)

References 22 publications

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“…The most prevalent source of uniform corrosion, which is easily detected by rust, is oxidation in the presence of air or water. Corrosion inhibitors, protective coatings, and cathodic protection are all common strategies for preventing uniform corrosion [18].…”

Section: Corrosion In Carbon-steel Pipeline and Its Factors With Prev...mentioning

confidence: 99%

Recent Advances in Nondestructive Method and Assessment of Corrosion Undercoating in Carbon–Steel Pipelines

May

Alam

Nayan

2022

Sensors

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Carbon–steel pipelines have mostly been utilized in the oil and gas (OG) industry owing to their strength and cost-effectiveness. However, the detection of corrosion under coating poses challenges for nondestructive (ND) pipeline monitoring techniques. One of the challenges is inaccessibility because of the pipeline structure, which leads to undetected corrosion, which possibly leads to catastrophic failure. The drawbacks of the existing ND methods for corrosion monitoring increase the need for novel frameworks in feature extraction, detection, and characterization of corrosion. This study begins with the explanations of the various types of corrosion in the carbon–steel pipeline in the OG industry and its prevention methods. A review of critical sensors integrated with various current ND corrosion monitoring systems is then presented. The importance of acoustic emission (AE) techniques over other ND methods is explained. AE data preprocessing methods are discussed. Several AE-based corrosion detection, prediction, and reliability assessment models for online pipeline condition monitoring are then highlighted. Finally, a discussion with future perspectives on corrosion monitoring followed by the significance and advantages of the emerging AE-based ND monitoring techniques is presented. The trends and identified issues are summarized with several recommendations for improvement in the OG industry.

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Section: Corrosion In Carbon-steel Pipeline and Its Factors With Prev...mentioning

confidence: 99%

Recent Advances in Nondestructive Method and Assessment of Corrosion Undercoating in Carbon–Steel Pipelines

May

Alam

Nayan

2022

Sensors

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“…To avoid the corrosion problem, the process of design is usually based on the intern coating made of epoxy resin to isolate the internal wall in order prevent the chemical reactions on the one hand, and on the other hand on the extern coating made of polyethylene to protect from the strong conditions API RP 5L2 [6]. In fact, these criteria allow protecting the piping systems from the defects including external corrosion [7], hydrofluoric acid corrosion [8], sulfate-reducing bacteria on corrosion [9], friction wear, erosion and cracks due to the high pressure and temperature [10]. During operating of piping systems, the phenomenon corrosion can make the challenge faced many companies such as hydrocarbons.…”

Section: Introductionmentioning

confidence: 99%

Experimental study of the effects of semi-elliptical defects on the API X52 pipeline and its reparation by welding

MESSAOUDI

MERIEM-BENZIANE

2022

JMES

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The aim of the project is to study experimentally the influence of the semi-elliptical defect on the steel of grade API 5L X52 pipeline and its reparation by welding operation to keep the safety of hydrocarbons transport network. The tests have been performed on the specimens with/without semi-elliptical defects by using two ratios a/c and a/t, where the defects issue on the piping systems wall is treated by using the welding operation, which focuses on the filling the defected surface as same thickness of the base wall of the pipeline after removing the defects. The decrease of ultimate stress is mainly evident depending on the size of crack, where they compared to the base metal results. The experimental results showed that the reliability of the welding operation is proved especially in the ratio a/c =1, which is similar to that found in automatically welded. It is proved that the ratio a/t = 0.2 curve exhibits similarity to the base metal curve and their elongation conforms to API standard of steel X52 grade. Clearly, corrosion defects cause degradation of mechanical property in the order of 44% to 50% depending on the ratio of 0 < a/c ≤1 and from 20% to 80% according to the second ration of 0 < a/t ≤0.8. The obtained results proved that the enhanced of mechanical properties by welding reaches to ultimate stress is 559 MPa for the ratio a/t = 0.2 and 531 MPa for the ratio a/t = 0.5. Finally, the experimental results provided that the impact of semi-elliptical defect has effects on the safety of piping systems where welding became as one of among solutions to repair the piping systems.

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Imidazole-methane sulfonic ionic liquids used for catalytic alkylation desulfurization and enhancement of microchannel technology

Yun

Tang

2022

Chemical Engineering Journal

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Cause analysis and preventive measures of pipeline corrosion and leakage accident in alkylation unit

Cited by 9 publications

References 22 publications

Recent Advances in Nondestructive Method and Assessment of Corrosion Undercoating in Carbon–Steel Pipelines

Recent Advances in Nondestructive Method and Assessment of Corrosion Undercoating in Carbon–Steel Pipelines

Experimental study of the effects of semi-elliptical defects on the API X52 pipeline and its reparation by welding

Imidazole-methane sulfonic ionic liquids used for catalytic alkylation desulfurization and enhancement of microchannel technology

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