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There is evidence of significant physical fouling of crude units from polymerization of MEA triazine scavenger in the presence of hydrogen sulfide. This paper highlights this new impact.
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Summarizes results from Phase III of the joint industry program (JIP) on refinery alkaline sour water (ammonium bisulfide) corrosion. Phase III included a comprehensive engineering analysis of data from all three phases of the Sour Water JIP.
Materials qualification testing of corrosion resistant alloys (CRAs) typically involves the use of simple pass/fail tests. Modification of existing standards is recommended for environments in which pit initiation is statistically improbable but pit propagation is rapid, e.g. low chloride/high H2S.
检测、修补和缓解炼厂压力容器在湿H2S环境下发生开裂的
DOWNLOADABLE HISTORICAL DOCUMENT. Detection, repair, and mitigation of cracking of carbon steel pressure vessels, including columns, heat exchangers, drums, reboilers & separators in wet H2S petroleum refinery environments.
High performance protective coatings are often failing in the severe headspace environments of wastewater environments. These failures are attributed to many factors including glow permeability properties to resist H2S and other corrosive gasses present within these environments. Although the chemical and physical properties of coating systems can be determined in the lab, this is not the case for application variables and the effects of environmental factors.
Methodology to simulate actual oil and gas field condition in laboratory tests. A sulfide stress cracking test is carried out on 13% Cr stainless steel with various buffer solutions. Then, pH behavior was estimated. A suitable composition of the solution is proposed by using thermodynamic calculations.
The stainless steel 17-4 PH (H1150D) is a cost-effective alloy for oilfield components due to its combination of high strength, toughness, and good corrosion resistance. Plasma nitriding improves the surface strength of the 17-4 PH and this work suggests that the nitrided can the resistance to SSC.
The decomposition process of ancient marine species in the seabed for millions of years coupled with the presence of specific geological conditions such as high pressures and temperatures led to the formation of what is known today as fossil fuels. For this reason, they can be found either on the earth's surface where ancient seas were located or beneath the seabed. Considering that the ocean covers three-quarters of the Earth's surface the offshore oil and natural gas exploration entail an enormous economic and strategic benefit.1
The formation of greigite and/or pyrite seems to correlate with onset of localized corrosion Experiments involving deposition of pyrite on the steel surface were conducted to investigate if localized corrosion occurs when pyrite is deposited on mild steel in an aqueous H2S environment.