Key parameters affecting sweet and sour corrosion: Impact on corrosion risk assessment and inhibition

Obot, I.B.; Sorour, Ahmad A.; Verma, Chandrabhan; Al-Khaldi, Turki A.; Rushaid, Anas S.

doi:10.1016/j.engfailanal.2022.107008

Cited by 23 publications

(8 citation statements)

References 92 publications

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“…The import and export media through the shell process of the heat exchanger were analyzed, and the composition of each medium is shown in Table 5 [35][36][37]. Alkaline-sour water corrosion refers to the corrosion of metallic materials in a sour water environment containing ammonium hydrogen sulfide (NH 4 HS), and its corrosive reaction can be expressed as Experimental corrosion studies have shown [38][39][40] that the main influencing factors of alkali-sour water corrosion include pH, NH 4 HS concentration, flow rate (shear stress), hydrogen sulfide partial pressure, metal material composition, etc. In general, the corrosion rate increases with increases in NH 4 HS concentration, flow rate (shear stress), and hydrogen sulfide partial pressure.…”

Section: Resultsmentioning

confidence: 99%

Analysis of Causes and Protective Measures against Corrosion Perforation in the Shell-Side Outlet Flange of a Sour Water Steam Heater

Liang,

Duan,

2024

Coatings

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Heat exchangers, as essential devices for facilitating heat transfer, have found a variety applications in various industries. However, the occurrence of corrosion-related failures in real-world scenarios remains a prevalent problem that can lead to catastrophic incidents. This paper investigates the problem of corrosion perforation on the outlet flange of a heat exchanger in a sour steam stripper from a petrochemical company. Failure analysis was performed using physical testing and chemical analysis, metallographic examination, microscopic observation, and energy spectrum analysis. Intergranular corrosion experiments and flow calculations were performed to verify the analysis. The results indicate that the main cause of the flange corrosion perforation was the formation of a highly concentrated NH4HS aqueous solution during the cooling process of the NH3, H2S, and water vapor in the fluid passing through the heat exchanger, and the velocity was too high, which triggered alkali-sour water washout corrosion. To prevent the recurrence of similar corrosion perforations, recommendations for material and process optimization are proposed to effectively reduce the safety production risks in refinery units and provide valuable information for the safe long-term operation of a sour steam stripper.

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Section: Resultsmentioning

confidence: 99%

Analysis of Causes and Protective Measures against Corrosion Perforation in the Shell-Side Outlet Flange of a Sour Water Steam Heater

Liang,

Duan,

2024

Coatings

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“…93,94 The formation of precipitates occurs under certain conditions, e.g., the formation of FeCO 3 occurs preferably below pH 6 and temperature of 90 °C. 95 The dissolution of CO 2 in H 2 O and the formation of FeCO 3 are presented in Fig. 6.…”

Section: E-factor ¼mentioning

confidence: 99%

Principles and theories of green chemistry for corrosion science and engineering: design and application

Verma,

Chauhan,

Aslam

et al. 2024

Green Chem.

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“…Examples include troilite, mackinawite, marcasite, pyrrhotite, and kansite [28]. Figure 5 illustrates the relative percentages of primary corrosion products resulting from the exposure of carbon steel to H 2 S-induced corrosion [5].…”

Section: H 2 S Corrosion Productsmentioning

confidence: 99%

“…In the oil and gas sector, material failures resulting from corrosion in both so sweet environments pose various safety, economic, and environmental challenges 2 shows the relative contribution of various forms of corrosion failures through 1970s [5]. Sour corrosion induced by H2S is identified as the primary cause of cor related malfunctions in this industry, with its prevalence steadily escalating ov Proactively addressing sour corrosion and instituting preventive measures are imp for managing the associated risks in petroleum industries.…”

Section: Introductionmentioning

confidence: 99%

Addressing Hydrogen Sulfide Corrosion in Oil and Gas Industries: A Sustainable Perspective

Vakili,

Koutník,

Kohout

2024

Sustainability

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In the oil and gas industry, the corrosion attributed to hydrogen sulfide (H2S) is one of the most significant challenges. This review paper systematically investigates the diverse facets of H2S corrosion, including its sources, corrosion locations, mechanisms, and resultant corrosion products. Understanding different forms of H2S corrosion, such as stress-oriented hydrogen-induced cracking (SO-HIC), sulfide stress cracking (SSC), and hydrogen-induced cracking (HIC), provides a thorough comprehension of these phenomena. The paper discusses critical factors influencing H2S corrosion, such as temperature, flow rate, pH, and H2S concentration, highlighting their implications for sustainable practices in the oil and gas sector. The review emphasizes the significance of monitoring and mitigation strategies, covering continuous monitoring, applying corrosion inhibitors, selecting materials, and conducting thorough data analysis and reporting. Furthermore, the role of training in fostering a sustainable approach to H2S corrosion management is highlighted. This exploration advances the overarching goal of sustainable development in the oil and gas industries by providing insights into understanding, monitoring, and mitigating H2S corrosion. The findings presented here offer a foundation for developing environmentally conscious strategies and practices to guarantee the long-term viability and flexibility of refinery operations.

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Key parameters affecting sweet and sour corrosion: Impact on corrosion risk assessment and inhibition

Cited by 23 publications

References 92 publications

Analysis of Causes and Protective Measures against Corrosion Perforation in the Shell-Side Outlet Flange of a Sour Water Steam Heater

Analysis of Causes and Protective Measures against Corrosion Perforation in the Shell-Side Outlet Flange of a Sour Water Steam Heater

Principles and theories of green chemistry for corrosion science and engineering: design and application

Addressing Hydrogen Sulfide Corrosion in Oil and Gas Industries: A Sustainable Perspective

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