Cause analysis and prevention measures of fire and explosion caused by sulfur corrosion

Yang, Rui; Wang, Zhirong; Jiang, Juncheng; Shen, Shuoxun; Sun, Peipei; Lu, Yawei

doi:10.1016/j.engfailanal.2019.104342

Cited by 36 publications

(9 citation statements)

References 29 publications

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“…Yang [33] proposed that the difference of wall materials has a certain influence on spontaneous combustion accidents. The effect of the material was confirmed in the accident investigation [34]. The heat preservation and heat dissipation of wall materials affect the heat transfer process, resulting in different times when the heat source temperature is transferred to the outer wall.…”

Section: Variation Of Temperature Of Tank Under Different Wall Materialsmentioning

confidence: 65%

Numerical Analysis of the Spontaneous Combustion Accidents of Oil Storage Tanks Containing Sulfur

Cai

2021

Processes

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In order to study various influencing factors of spontaneous combustion accidents of sulfur-containing oil storage tanks, this paper constructed a two-dimensional model of the storage tank wall by COMSOL Multiphysics software. The proposed model takes temperature change trend as an observation index to explore the heat transfer process of the tank wall. By fitting the function curve of heat release with oxidation reaction temperature of sulfur corrosion products and comparing with constant heat sources, it is found that heat source intensity will affect the temperature growth trend of tank spontaneous combustion. In addition, the air convection heat transfer coefficient represents the interference degree of external environment to the spontaneous combustion heating process, and the wall heating rate decreases with the increase of air convection heat transfer coefficient. The different heat release rates in varying oxidation stages will lead to distinct temperature growth trends. The larger the air convection heat transfer coefficient, the greater the temperature difference between the inner and outer walls of the tank, which is not conducive to the detection of the abnormal temperature of the heat source. The difference of thermal insulation and thermal conductivity of tank materials also affects the wall heat transfer, so the material properties should be considered comprehensively in actual production. The research results can provide a research basis and a theoretical basis for monitoring, prevention, and control of spontaneous combustion of sour oil storage tanks.

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Section: Variation Of Temperature Of Tank Under Different Wall Materialsmentioning

confidence: 65%

Numerical Analysis of the Spontaneous Combustion Accidents of Oil Storage Tanks Containing Sulfur

Cai

2021

Processes

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“…The SRB substrates may be recoverable after the biocides have degraded. Pipeline corrosion and other unfavourable effects might be avoided with the help of sulphide treatment, which was necessary for safety reasons [8]. At each stage of a well's lifecycle, SRB degradation poses a hazard that must be identified and counteracted [9].…”

Section: Introductionmentioning

confidence: 99%

Impact of Bio-Competitive Exclusion on Nitrate-Reducing Bacteria in Oil Reservoir Water Treatment

2023

Global NEST: The International Journal

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<p>In the presence of nitrogen oxides, nitrate-reducing bacteria (NRB) may use nitrate as an electron acceptor, reduce nitrate to nitrite, and finally convert nitrite to nitrogen or ammonium (NO and N2O). Studies have shown that BCX (Bio-Competitive Exclusion) is a viable , ecologically benign, and low-cost technique for regulating NRB in its first phases of study and application. More precisely, Pseudomonas sp. to isolate nitrate-reducing bacteria from oil-field wastewater using 16S rDNA sequencing and selection (NRB). Including NO3 and NO2 as bio-activators has helped researchers get a deeper understanding of the processes that govern NRB activation. The potential for molybdate and NRB to inhibit Sulfate-Reducing Bacteria (SRB) was also investigated. The results showed that NO2 was more effective than NO3. The effect was greatest at a 1:4 ratio of NO3 to NO2. NRB activation synergized with low molybdic acid solution concentrations (5%). Static corrosion model experiments demonstrated the importance of SRB in the corroding process. Biological inhibitors were shown to have the lowest corrosion rates, proving their effectiveness. Scanning electron microscopy was used to examine the corroded steel sheet's surface morphology. In addition, there was almost no surface corrosion or pitting on the steel sheet.</p>

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“…The numerous sulfuric acid plants existing in Brazil were the inspiration for selecting the accident at Motiva Enterprises 8 . In general, they are considerably old plants, some operating for more than 30 years, where numerous problems related to the mechanical equipment integrity and management within organizations are observed 9 . As a result, there was a need to address the issue of mechanical integrity in mature process plants in order to help organizations manage mature assets by providing a tool to predict failure and avoid loss of containment and major accidents of any magnitude 10 …”

Section: Introductionmentioning

confidence: 99%

Asset integrity management in mature process plants

Matheus

Correia

Morais

et al. 2023

Process Safety Progress

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Several plants in Brazil have mature assets or use equipment that comes from decommissioned facilities. In addition, the culture of process safety in Brazil is an under‐researched topic that has only recently begun to attract corporate attention. Since catastrophic accidents are not very common, any accident related to the process can result in very large losses in terms of damage to equipment and loss of human and social capital. In mature process plants, these issues are even more sensitive because their organization may not yet have developed an effective integrity management program. Nevertheless, it is a proven fact that the assets of these plants are often nearing the end of their residual lifetime. Therefore, the present work aims to develop a high‐level checklist to evaluate the mechanical integrity and identify possible failures in the integrity management of vessels and tanks, based in good engineering practices, Regulatory Standard 13 (NR 13), API 579‐1/ASME FFS‐1, API RP 580, API RP 581, HSE (Health and Safety Executive) requirements, and other relevant standards as references. The checklist ts divided into six sections, namely (1) Brazilian Regulatory Standard 13 (NR 13); (2) Design and manufacturing; (3) Operation; (4) Management systems; (5) Deterioration mechanism; and (6) Risk‐based inspection, as the most relevant criteria for evaluating the integrity of mature pressure vessels and tanks.

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Cause analysis and prevention measures of fire and explosion caused by sulfur corrosion

Cited by 36 publications

References 29 publications

Numerical Analysis of the Spontaneous Combustion Accidents of Oil Storage Tanks Containing Sulfur

Numerical Analysis of the Spontaneous Combustion Accidents of Oil Storage Tanks Containing Sulfur

Impact of Bio-Competitive Exclusion on Nitrate-Reducing Bacteria in Oil Reservoir Water Treatment

Asset integrity management in mature process plants

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