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Corrosion Study Of Austenitic Stainless Steels During HDO Upgrading Process By Supercritical Ethanol Under Different Hydrogen Resource Conditions

Corrosion Study Of Austenitic Stainless Steels During HDO Upgrading Process By Supercritical Ethanol Under Different Hydrogen Resource Conditions
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Biofuels are renewable energy resources to replace fossil fuels since the latter are depleting and their application lead to serious environmental impacts.1 Fast pyrolysis is an industrial approach to convert a larger amount of raw biomass into bio-oils in a timely fashion. However, their poor qualities, such as low thermal stability, high water and acid contents, and low heating value, make them not ready f to be as transportation fuels directly.2,3 Moreover, their high water content and acidity can introduce corrosion concern during handling, storage , transportation and upgrading.4 

Product Number: 51322-18031-SG
Author: Mingyuan Zhanga, Kaiyang Lib, Xue Hanb, Yimin Zengb, Chunbao Xua
Publication Date: 2022
Industries: Corrosion Monitoring and Control , Coatings
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$20.00
$20.00

Crude pyrolysis bio-oils are recognized as a potential source to replace conventional fuels and chemicals. However, their high water content, viscosity and acidity significantly hinder industrial applications. Hydrodeoxygenation Upgrading (HDO) of pyrolysis bio-oil, can remarkably improve their quality and advanced the application of being as an alternative fuel or chemical. During the upgrading, the high contents of water and acids in of the crude bio-oil may introduce unwanted corrosion damage to the processing equipment. This paper investigated the corrosion performance of two candidate constructional steels (UNS S31603 and UNS S30400) under the HDO processes using supercritical ethanol solvent, NiMoW/Al2O3 catalyst and different hydrogen resources (hydrogen gas or formic acid) at 325 °C.

Crude pyrolysis bio-oils are recognized as a potential source to replace conventional fuels and chemicals. However, their high water content, viscosity and acidity significantly hinder industrial applications. Hydrodeoxygenation Upgrading (HDO) of pyrolysis bio-oil, can remarkably improve their quality and advanced the application of being as an alternative fuel or chemical. During the upgrading, the high contents of water and acids in of the crude bio-oil may introduce unwanted corrosion damage to the processing equipment. This paper investigated the corrosion performance of two candidate constructional steels (UNS S31603 and UNS S30400) under the HDO processes using supercritical ethanol solvent, NiMoW/Al2O3 catalyst and different hydrogen resources (hydrogen gas or formic acid) at 325 °C.

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Corrosion Under Insulation Performance Of Insulation Stand-Offs And Non-Metallic Membranes

Product Number: 51322-17618-SG
Author: Ahmad Raza Khan Rana, Graham Brigham, Omar Chaar,George Jarjoura
Publication Date: 2022
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Corrosion under thermal insulations namely CUI (Corrosion under insulation) is among the key damage mechanisms which poses integrity risk to the hydrocarbon facilities. CUI is reportedly known as the reason behind 40-60% of failures in the facility piping whereas small bore piping (i.e., NPS < 4”) are even more sensitive to CUI failures, where up to 81% of reported failures in small-sized piping are known to be from CUI.  Monetary spending to inspect and fix CUI-related failures cost 10% of overall maintenance budget in a typical medium-sized oil refinery.  CUI risk is influenced by numerous operational and environmental factors which impedes its management in a typical AIM (Asset integrity management) program.
Corrosivity Laboratory Investigations Of Streams Associated With Gas Compression Plants And Liquid Separation Stations
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Corrosivity Laboratory Investigations Of Streams Associated With Gas Compression Plants And Liquid Separation Stations

Product Number: 51322-17911-SG
Author: Yahya T. AlJanabi
Publication Date: 2022
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The design packages are being optimized for the construction of gas transmission lines associated with nine (9) Gas Compression Plants (GCPs) and six (6) Liquid Separation Stations (LSSs). The objective of this study was to assess the service corrosivity of all gas transmission lines associated with these GCPs and LSSs.  The results of the study will assist in selecting a cost-effective and efficient corrosion management program in terms of both materials and corrosion control options. To address this objective, the study involved conducting laboratory tests simulating the conditions in these lines.  Three types of corrosion attacks were investigated, namely, general corrosion, pitting corrosion, and gas phase corrosion.  
Cracked High Pressure Steam Superheater Alloy 800 Piping Of A Thermal Oxidizer From A Gas Plant SRU
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Cracked High Pressure Steam Superheater Alloy 800 Piping Of A Thermal Oxidizer From A Gas Plant SRU

Product Number: 51322-17922-SG
Author: Yousif A. Al Rabie, Iyad Al-Buraiki
Publication Date: 2022
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Caustic soda (sodium hydroxide) is one of the most widely used inorganic chemicals in water treatment process. Improper injection rate or concentration have led to many failures in the industry. These failures have been mostly identified as Caustic Stress Corrosion Cracking (CSCC).

Caustic Stress Corrosion Cracking (CSCC) is a form of Environment Assisted Cracking (EAC), characterized by surface-initiated cracks that occur in materials exposed to caustic environment. EAC is defined as a cracking process caused by the synergistic effects of stress, and environment on a specific material. All three factors–stress, aggressive environment, and susceptible material are necessary for EAC. The environment aggressiveness escalates with increase of caustic concentration and metal temperature, in case of CSCC. 
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