Sulfide Corrosion
Mostrando 1-12 de 12 artigos, teses e dissertações.
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1. Films Formed on Carbon Steel in Sweet Environments - A Review
Corrosion of carbon steel pipelines in sweet environments has been extensively researched on oil and natural gas exploration and production in order to obtain efficient corrosion mitigation methods. Although the consequences of corrosion are known, the cause and mechanism by which a certain phenomenon occurs are still not well understood. Sweet corrosion is
J. Braz. Chem. Soc.. Publicado em: 04/07/2019
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2. UM ESTUDO TERMODINÂMICO DA CORROSÃO DOS AÇOS CARBONO PELO SULFETO DE HIDROGÊNIO - EXPLORANDO CONCEITOS DE EQUILÍBRIO QUÍMICO
This study addresses an inherent problem to the oil and natural gas exploration and production industry, the corrosion of pipes and tanks by H2S. H2S with water emulsified in the oil or H2S with the water vapor mixed in the gas, they make the acid environment leading to corrosion. This is commonly manifested by the formation of insoluble sulfides on the surf
Quím. Nova. Publicado em: 2018-05
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3. Corrosion resistance of rolled and rerolled super martensitic steel in media containing chlorides and hydrogen sulfide
ABSTRACT In the oil and gas industry, super matensitic steels have been used primarily in the manufacture of seamless steel pipe for use in drilling oil and gas. The objective of this work is to evaluate the corrosion resistance of rolled and rerolled super martensitic steels in electrolytes of aqueous solution of NaCl 35 g/L, and aqueous solution of NaCl 12
Matéria (Rio J.). Publicado em: 02/10/2017
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4. Evaluation of hydrogen-Induced cracking resistance of the In625 laser coating system on a C-Mn steel substrate
Abstract The corrosion of C-Mn steels in the presence of hydrogen sulfide (H2S) represents a significant challenge to oil production and natural gas treatment facilities. The failure mechanism induced by hydrogen-induced cracking (HIC) in a Inconel 625 coating / C-Mn steel has not been extensively investigated in the past. In the present work, an API 5CT ste
REM, Int. Eng. J.. Publicado em: 2017-06
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5. Evaluation of Corrosion Caused by the use of In Natura Biogas in Steam Generator Boilers of Carbon Steel Structural Elements
This work evaluates the corrosion process caused by the presence of hydrogen sulfide in the biogas in natura, in steels commonly used in the construction of steam generator boilers, simulating conditions close to those found on the real application of these materials, exposing the test bodies directly to biogas in natura, flame of combustion and gases result
Mat. Res.. Publicado em: 10/04/2017
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6. Carbon steel corrosion induced by sulphate-reducing bacteria in artificial seawater: electrochemical and morphological characterizations
ABSTRACT In this work, the corrosion behavior of carbon steel AISI 1020 was evaluated in artificial seawater in the presence of mixed sulfate-reducing bacteria (SRB) culture isolated from the rust of a pipeline. The corrosion evaluation was performed by electrochemical techniques (open circuit potential (Eocp), polarization curves and electrochemical impedan
Matéria (Rio J.). Publicado em: 2016-12
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7. Evaluación De La Influencia De Las Condiciones De Fondo De Pozo En El Deterioro De Un Acero API P110, En Ambientes Simulados Del Proceso De Combustión In Situ, Por Gravimetría Y EIS
ABSTRACT Given the large amount of consumption of oil as an energy source, is resulting in a diminution in the existing world oil, the exploitation of heavy oil emerges as new alternative extraction is left aside because of the difficulties associated to processing. Therefore the in situ combustion process is an extraction method that facilitates production
Matéria (Rio J.). Publicado em: 2016-09
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8. Corrosão-erosão da liga Cu10Ni-3Al-1, 3Fe em presença de íons cloreto, sulfeto e sulfato. / Corrosion-erosion of Cu10Ni-3Al-1, 3Fe alloy in the solution with chloride, sulfide or sulphate ions.
O presente trabalho teve como objetivos determinar a resistência à corrosão e as propriedades mecânicas da liga Cu10Ni-3Al-1,3Fe, nas condições solubilizada e envelhecida a 550°C. Foi também objetivo do trabalho identificar a microestrutura nestas condições de tratamento térmico. As propriedades mecânicas foram avaliadas a partir de ensaios de tr
Publicado em: 2010
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9. Estudo da corrosão do aço ao carbono em meio de sulfeto
This work presents a study of the 1020 and 1040 carbon steel corrosion in aqueous solution containing dissolved H2S in order to investigate the effect of H2Saq and HSaq species. Some different electrolytes were used: acetic acid buffer and phosphate buffer in presence or absence of 3.5 wt% NaCl solution containing 10, 25, 50, 100, 200, 500, 1000 and 2000 ppm
Publicado em: 2009
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10. BIOFILM FORMATION ON SUPERDUPLEX STAINLESS STEEL UNS S32750 IN DYNAMIC FLOW SYSTEM / FORMAÇÃO DE BIOFILMES EM AÇO SUPERDUPLEX UNS S32750 EM SISTEMA DINÂMICO
The goal of this work is to determine the biofilm colonization on the surface of superduplex stainless steel S32750 by Sulfate Reducing Bacteria (SRB) in a flow loop at constant flow rate and room temperature, exposed to artificial sea water. The duplex stainless steel has been widely used as material for offshore applications due to their excellent corrosio
Publicado em: 2008
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11. Influência do tamanho de grão austenítico na resistência à corrosão sob tensão de aços para aplicação sour service
In this work, was studied the influence of prior austenite grain size on the susceptibility of some steels on sulfide stress corrosion cracking in sour environments with high H2S content. The base of the work will be two steels with a range of carbon equal a 0,24 and 0,34% containing chromium, molybdenum, vanadium, niobium and titanium. It was varied the hea
Publicado em: 2007
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12. Importance of Hydrogen Sulfide, Thiosulfate, and Methylmercaptan for Growth of Thiobacilli during Simulation of Concrete Corrosion
Biogenic sulfuric acid corrosion of concrete surfaces caused by thiobacilli was reproduced in simulation experiments. At 9 months after inoculation with thiobacilli, concrete blocks were severely corroded. The sulfur compounds hydrogen sulfide, thiosulfate, and methylmercaptan were tested for their corrosive action. With hydrogen sulfide, severe corrosion wa