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Laboratory Testing To Investigate If Coated Pipelines Are Safe For Transportation Of Hydrogen Gas

icture for Laboratory Testing To Investigate If Coated Pipelines Are Safe For Transportation Of Hydrogen Gas
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Governments and energy companies are increasingly looking at hydrogen as an alternative to fossil fuels, and it is considered that without hydrogen the world cannot aim to be a net zero carbon economy by 2050. Consequently, hydrogen is currently enjoying unprecedented political and business momentum, with the number of policies and projects around the world expanding rapidly. Combustion of hydrogen does not produce greenhouse gases such as carbon dioxide and methane, particulates, sulfur oxides or ground level ozone. Thus, hydrogen offers ways to decarbonize a range of sectors, as well as help improve air quality and strengthen energy security.

Product Number: 51322-17832-SG
Author: Amal Al-Borno, Jeffrey Rogozinski, Jigar K. Mistry, Yuan Li, Moavin Islam
Publication Date: 2022
Industries: Gas/Liquid Pipelines , Pipelines, Tanks, and Underground Systems , Corrosion Monitoring and Control , Coatings
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$20.00

Hydrogen is gaining momentum as the centerpiece of clean energy initiatives in many countries and may hold the key to the inevitable and needed transition from fossil fuels to renewable energy. It is estimated by various sources that the global economic impact would be about $1T (one trillion dollars) by the year 2035. Hydrogen can be extracted from natural gas and other fossil fuels commonly known as “blue” hydrogen, or from renewable energy sources or from water by electrolysis, termed “green” hydrogen.

The known deleterious effects of H2 on high strength pipeline steel (embrittlement, decrease in ductility, acceleration of fatigue crack growth, etc.) makes it a potential challenge for economic and safe transportation of hydrogen gas from the production source to the end user.

This study presents the test protocol designed to investigate if internal coatings can help mitigate the deleterious interaction between pipeline steel and hydrogen. Test results of six coating systems vs bare (uncoated) metal are presented and discussed based on their impact on mechanical properties of X-80 pipeline steel (yield strength, ultimate tensile strength, % elongation, and % reduction of area).

Hydrogen is gaining momentum as the centerpiece of clean energy initiatives in many countries and may hold the key to the inevitable and needed transition from fossil fuels to renewable energy. It is estimated by various sources that the global economic impact would be about $1T (one trillion dollars) by the year 2035. Hydrogen can be extracted from natural gas and other fossil fuels commonly known as “blue” hydrogen, or from renewable energy sources or from water by electrolysis, termed “green” hydrogen.

The known deleterious effects of H2 on high strength pipeline steel (embrittlement, decrease in ductility, acceleration of fatigue crack growth, etc.) makes it a potential challenge for economic and safe transportation of hydrogen gas from the production source to the end user.

This study presents the test protocol designed to investigate if internal coatings can help mitigate the deleterious interaction between pipeline steel and hydrogen. Test results of six coating systems vs bare (uncoated) metal are presented and discussed based on their impact on mechanical properties of X-80 pipeline steel (yield strength, ultimate tensile strength, % elongation, and % reduction of area).

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Key Points Specifically For Transmission Pipeline Coating

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The bulk of a pipeline coating is shop applied and those processes are typically automated. Because
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Product Number: 51322-17633-SG
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As onshore pipeline rights-of-way become more congested and urban sprawl increases, the number of horizontal directional drills (HDDs) will likely increase. HDD is a trenchless pipeline installation method that requires drilling a larger pilot hole where the mainline pipe can be subsequently pulled through the drilled hole. However, HDDs have an increased probability for coating damage, even when coated with traditional mill or field applied abrasion resistant overcoat (ARO). This coating damage includes abrasion, impact, gouging, denting, tearing, bending, etc. and that damage may exist for the life of the pipeline due to an HDD being inaccessible for future maintenance.
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Laboratory Evaluation Of Corrosion Inhibitor And The Performance Requirements In Gas Gathering And Transportation Pipelines

Product Number: 51322-17856-SG
Author: Chen Wen, Tian Yuan, Yu Hua-li, Chang Hong_gang
Publication Date: 2022
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At present, with the increasing in demand for natural gas, all gas production companies are increasing their efforts in natural gas exploration and development. Corrosion is one of the problems during the wet gas transporting, and this can be solved by adding corrosion inhibitor(CI) in most case. However, there are no standards for the Cis performance used in gas gathering and transportation pipelines, which may lead to some gapsbetweentheR&Dscientistsandtheneedsofcorrosioninhibitorusers. Based on the demand of some gas production companies for the CIs, this paper puts forward the performance requirements and corresponding indexes of Cis for natural gas gathering and transportation system, and given some advice on the evaluation method.
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