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This paper discusses the chemistry and fate of two commonly used triazine H2S scavengers and their reaction by-products with respect to their impact on crude unit overhead corrosion and fouling.
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The purpose of this paper will be to: (a) review published literature to characterize and classify speciation related to the types of impurities encountered in opportunity crudes; and (b) describe and categorize published case studies of corrosion in crude unit overhead operations.
This paper is presented as a practical guide to identifying the causes of corrosion in different sections of gas sweetening trains and ways to control and minimize corrosion in amine plants.
This paper will review the features and benefits of a new epoxy coating technology that allows for true epoxy-amine curing in a single-pack product. Performance versus traditional two-component epoxy products will be compared, and environmental and convenience benefits of single-pack versus two-component packaging will be discussed.
The effect of monoethanolamine (MEA), diethanolamine (DEA) and N-methyldiethanolamine (MDEA) on the corrosion behavior of N80 steel in water-saturated supercritical CO2 phase and supercritical CO2-saturated aqueous phase with impurities (SO2, NO2 and O2).
Brief descriptions of the mechanisms of common types of corrosion attacks in petrochemical and refinery environments viz. Wet H2S, Caustic, Amine, Carbonate corrosion and cracking.
Five case studies of corrosion related failures in alkanolamine acid gas removal systems including the following types of corrosion: Uniform, Pitting, Chloride Induced Crevice, Cavitation, and Microbiologically Induced Corrosion (MIC).
Gas flaring is often a frequent occurrence in the oil and gas industry, where significant unrecovered gas is flared to the atmosphere with wide ranging negative environmental implications such as increased greenhouse emission, and other pollutants that have negative health implications on local populations. However, recent environmental awareness, drive to lower emission and economic benefits associated with flare gas recovery has seen a shift in flaring practice. The recovery of flared gas reduces noise and thermal radiation, operating and maintenance costs, air pollution and gas emission and reduces fuel gas and steam consumption.
Thermal and/or hydrolytic stability behavior of solutions of carboxylic acids. This work thermally stressed aqueous solutions of carboxylic acids and analyzed the resulting solution and headspace. Expected corrosion impact on distillation overheads and brine rundown systems.
Carbon capture and storage (CCS) or utilisation (CCU) of the captured carbon dioxide (CO2) are tools for reducing global carbon emissions, and to combat climate change both are required. According to the IEA1, in 2021, the global capacity of CCS grew by 48%i, showing that this technology is becoming more popular to meet sustainability targets.
Two component spray polyurea systems are fast reacting and provide quick return-to-service coatings. Aromatic polyurea coatings have good physical properties but discolor upon exposure to UV light due to the aromatic content. Some of these aromatic systems have been coated with an aliphatic topcoat to provide the desired color stability.
This twin train Condensate Splitting Unit (CSU) is basically an atmospheric distillation unit processing predominantly Middle Eastern condensate along with other non-system condensate. The products from this unit are Light/Heavy Naphtha, Kerosene, Light/Heavy Gas Oil and Atmospheric residue. There is no desalter in this unit and preheated feed is flashed in Pre-flash column to separate out light and medium naphtha.