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Title: A CASE STUDY OF A SYNTHESIS GAS SYSTEM (H2) FAILURE IN AN AMMONIA PRODUCTION FACILITY
A CASE STUDY OF A SYNTHESIS GAS SYSTEM (H2) FAILURE IN AN AMMONIA PRODUCTION FACILITY

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Laurentiu Munteanu; Gheorghe-Daniel Florea; Bogdan-Adrian Simon-Marinica; Ligia-Ioana Tuhut; Marius-Simion Morar
10.5593/sgem2023/1.1/s06.74
10.5593/sgem2023/1.1
1314-2704
978-619-7603-56-9
English
23
1.1
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE 
•    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
Oil and Gas Exploration
The effect of pressurized hydrogen on pipeline walls is an important phenomenon that can cause damage to the integrity of the pipeline structure during transport and storage of gases. Hydrogen can penetrate the wall of metallic pipelines (alloy steel or carbon steel) and cause cracking or rupture of the material, which can lead to pressure loss or even serious effects (explosions, fires).
The embrittlement of the metal by hydrogen is a phenomenon of degradation of the mechanical properties of the metal, as a result of the penetration of hydrogen into the crystalline structure of the metal, by diffusion, leading to the weakening of the atomic bonds, and then to the decrease in the ductility of the material, manifested by cracking or breaking it in areas exposed to mechanical stress or vibrations.
The article aims to present a case study, starting from a recent failure of a synthetic gas (H2) system within an ammonia production facility at a chemical plant in Romania, consisting of an explosion followed by a fire, the support being synthesis gas (mainly H2, 70%), gas escaping through the crack created in a pipe in the welding joint area, where the working pressure was about 140 bar.
The mechanism of the event was elaborated on the basis of the material made available by the research bodies, the results obtained by the expertise of the material samples at the scene and in the laboratory, as well as the relevant technical-scientific reasoning.
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This work was carried out through the “Nucleu” Program within the National Plan for Research, Development and Innovation 2022-2027, with the support of the Romanian Ministry of Research, Innovation and Digitalization, project no. 23 32 02 02, title: Numerical modeling on the ignition and propagation of explosions generated by airhydrogen mixtures – H2Model.
conference
https://doi.org/10.5593/sgem2023/1.1/s06.74
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Proceedings of 23rd International Multidisciplinary Scientific GeoConference SGEM 2023
23rd International Multidisciplinary Scientific GeoConference SGEM 2023, 03 - 09 July, 2023
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference-SGEM
SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Russian Acad Arts; Turkish Acad Sci.
619-626
03 - 09 July, 2023
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hydrogen, hydrogen embrittlement, synthesis gas, explosion