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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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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
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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.
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Corrosion Testing Of Graphene-Oxide-Polymer Coatings For Geothermal Drilling Applications

Product Number: 51322-17732-SG
Author: Erlend Oddvin Straume, Gifty Oppong Boakye, Baldur Geir Gunnarsson, Arna María Ormsdóttir, Beatriz Alonso Rodriguez, Sigrun Nanna Karlsdottir
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The high temperature and chemical composition of the geothermal fluid results in corrosion damage of drilling equipment, well casing and other components made of steel and iron alloys used in geothermal power production. This corrosive nature of the geothermal environment decreases the service life and increases the need for maintenance of geothermal power plants and geothermal wells. The main reasons for the corrosion of components are hydrogen sulfide (H2S) and carbon dioxide (CO2) present in geothermal system.
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Corrosion Under Insulation And Atmospheric Corrosion In The Refinery Industry. An Accurate Approach To Estimate Corrosion Growth Rates, A Texas Refinery Case Study

Product Number: 51322-17751-SG
Author: Bernardo Cuervo, Mark McQueen
Publication Date: 2022
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External corrosion in uninsulated pipelines is normally able to be prevented by cathodic protection (CP). Generally, external corrosion on buried pipelines cannot occur if CP current is getting onto the pipe. CP is an electrochemical means of corrosion control in which the oxidation reaction in a galvanic cell is concentrated at the anode and suppresses corrosion of the cathode (pipe) in the same cell. For instance, to make a pipeline a cathode, an anode is attached to it.
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