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1391 total products found.
Picture for Methodology for Threat Assessment and Mitigation Planning for Pipeline Integrity
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51316-7573-Methodology for Threat Assessment and Mitigation Planning for Pipeline Integrity

Product Number: 51316-7573-SG
ISBN: 7573 2016 CP
Author: Graham Adams
Publication Date: 2016
$20.00
Picture for Effects of nitride precipitation in duplex stainless steel
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Picture for High Sensitive Sensors for Collection of Cathodic Polarization Data and Determination of Protection Potential Criteria of Buried Structures
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High Sensitive Sensors for Collection of Cathodic Polarization Data and Determination of Protection Potential Criteria of Buried Structures

Product Number: 51319-12896-SG
Author: Erwan Diler
Publication Date: 2019
$20.00

The installation of metallic coupons in the vicinity of buried pipes under cathodic protection (CP) allows theoretically to measure the potential and the current density through the simulated coating defect. Nevertheless this type of monitored coupon does not provide direct information on the actual efficiency of the CP and corrosion rates that could be caused by a CP failure over time or not adapted CP design. According to the soil resistivity and the corrosion potential in absence of CP a protection potential is generally targeted following the standard recommendations. However the soil resistivity as well as the corrosion potential might depend on the seasonal fluctuations and the protection potential might vary as function of the considered standard. Moreover all soils parameters cannot be considered in recommendations from standards and cathodic protection criteria can be sometimes debatable.In this study very sensitive electrical resistance (ER) sensors allowing obtaining precise corrosion data in real-time were adapted for soil applications. They were used in the selected soils and conditions to determine the off potential and current density corresponding to a corrosion rate of 10 µm/year which corresponds to the maximal corrosion rate of buried structures considered as protected according the standard ISO 15589-1:2015. The adapted ER sensors appeared to be particularly suitable for determining the protection potential and CP criteria in a relatively short time. For the tested soils and conditions the results showed that the cathodic protection criteria recommended in ISO 15589-1: 2015 are conservative compared to those measured experimentally. This method therefore seems particularly relevant for the determination of the protection potential in complex or polluted media in the absence of data in the literature.

Picture for Effect of Steel Surface Roughness on Coating Performance
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Effect of Steel Surface Roughness on Coating Performance

Product Number: 51319-12830-SG
Author: Russell Draper
Publication Date: 2019
$20.00

This paper describes experimental work investigating the influence of steel surface roughness on the adhesion performance of fusion bonded epoxy (FBE) pipeline coatings. The paper begins with a summary of the standards and methods that can be used to measure surface roughness. Several parameters are used to characterize the roughness of a blast cleaned steel including profile peak height and peak count. Tortuosity and rugosity indicate the proportional increase in steel surface area developed by roughening the surface. Normal pipeline coating industry practice is to specify and control a single roughness parameter termed “surface profile”. It is measured with replica tape and corresponds to the maximum peak-to-valley height.In the experimental work steel panels were abrasive blast cleaned with various steel shot and grit abrasives and the roughness characteristics of the blast cleaned surface were measured with stylus profilometers conventional replica tape and 3D imaging of replica tape.A FBE pipeline coating was applied to the prepared steel panels. The adhesion performance of the FBE coating was evaluated using the following test methods.<ul><li>Hot water immersion adhesion rating per CSA Z245.20 section 12.14 </li><li>Pull-off adhesion strength after hot water soak exposure per ASTM 4541 </li><li>Cathodic disbondment radius at 65 and 80 °C per CSA Z245.20 section 12.8 </li><li>Time before blisters were observed in Atlas Cell per NACE TM0174 modified </li><li>Average blister diameter in Atlas Cell </li><li>Pull-off adhesion strength after Atlas Cell exposure per ASTM 4541 </li></ul>The experimental data were analyzed using statistical techniques to investigate the relationship between the measured surface roughness and the adhesion test results. The adhesion results were found to be positively and linearly correlated with substrate tortuosity and rugosity. Profile peak height and peak count were found to contribute to tortuosity.

Picture for Enabling Decarbonization through Conversion of Natural Gas Pipelines to Blended Hydrogen Service through a Nanocomposite Surface Treatment
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Enabling Decarbonization through Conversion of Natural Gas Pipelines to Blended Hydrogen Service through a Nanocomposite Surface Treatment

Product Number: 51324-21204-SG
Author: Ganesh Kumar Arumugam; Sumil Thapa; Venkat Kamavaram; Andrea Mansfeld; Ramiro Maldonado
Publication Date: 2024
$40.00
The next phase of a global energy transition is hinging closely on finding fuel sources with substantially reduced carbon footprint. One way of doing so is to enable the use of Hydrogen (H2) rather than natural gas while still maintaining the existing legacy transport pipeline infrastructure. The presence of hydrogen in natural gas blend has been shown to cause weakening of steel even at extremely low concentrations and steps must be taken to mitigate the presence of hydrogen. Although embrittlement can be mitigated using specific metal alloys, the extensive cost of such retrofitting (up to $4.7M per mile) has made this economically unfeasible. One option that could substantially reduce this cost by as much as 90% is the use of new liners or barrier materials to limit the ability of hydrogen to diffuse into the steel. One such material coating that claims a unique combination of a “low-surface energy,” chemical- and abrasion-resistant topcoat material combined with a highly gas-impermeable and corrosion-resistant but physically fragile base layer is evaluated in this paper. This composite structure allows for the material to have sufficient mechanical strength to be field deployable in a typical pipeline environment. This work describes the establishment and use of a new experimental laboratory setup designed to test the effect of a nanocomposite material deposited onto legacy steel grades such as X52 and X70. The high-pressure, high-temperature mechanical testing bed could simulate all environmental conditions that a future pipeline would face hydrogen/methane blends anywhere from 0 – 100% temperature exceeding 200°C and pressures between up to 2000psi. Facilities capable of safely and controllably testing how metals react in the presence of hydrogen fuel blends will be essential to the industry as the demand for establishing new standards for hydrogen energy transport grows. This case study demonstrates how one might go about designing and testing a novel coating or surface treatment material, and will discuss whether such coatings are viable solutions, and where improvements need to be made.
Picture for Stray Current Guidebook for Rail Transit and the Lessons Learned
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Stray Current Guidebook for Rail Transit and the Lessons Learned

Product Number: 51319-13221-SG
Author: Saud Memon
Publication Date: 2019
$20.00

Stray current is a major concern for the track utility and infrastructure owners in the vicinity of thedirect current (dc) powered rail transit system.Stray current leakage and the corrosion caused by these currents is more of an issue in low resistivity soils and embedded tracks which typically run through major traffic areas city centers and tread between utility lines that require the rail to be continuously isolated to provide superior track-to-earth resistance.The absence of specific national stray current control and/or mitigation standard or guideline in the U.S necessitates the need to produce contemporary standards and guiding principles for the transit providers and corrosion consultants to match the advancements made in other sectors of the rail transit system. The author thus prepared a guidebook for the Transit Cooperative Research Program (TCRP) documenting best practices for those seeking guidance on design maintenance and testing of stray current control for dc powered rail transit systems. The guidebook is a resource that can be put into use immediately by stray current corrosion consultants transit agency owners and corrosion testing and maintenance providers.This guidebook includes the study of both national and international transit agencies. It is formatted as a reference guide to provide a user-friendly framework of consolidated guidelines and recommendations that will help in mitigating and/or eliminating stray current leakage from dc operated rail tracks using the data collected from transit agency and corrosion consultant interviews stray current corrosion survey questionnaires and field testing of a mix of 30 transit agencies (21 national and 9 international).This paper discusses “Lessons Learned” on the problems of surveying the transit industry how they were overcome and the results of a case study on issues related to stray current effects from one of the transit agencies that were used in preparing these consolidated guidelines and recommendations.

Picture for Unveiling the Mechanical Feasibility of Glass Reinforced Plastic for Post Combustion CO2 Capture Amine Service: A Thorough Examination
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Unveiling the Mechanical Feasibility of Glass Reinforced Plastic for Post Combustion CO2 Capture Amine Service: A Thorough Examination

Product Number: 51324-20710-SG
Author: Arun Kumar Sharma; Sukanta Ghosh; Rajiv Srinivasan; Anupom Sabhapondit; Karl Stephenne
Publication Date: 2024
$40.00
Mitigating global warming and reducing CO2 emissions from the environment necessitates the implementation of carbon capture, sequestration, and storage (CCS) as an immediate and feasible solution. Amines are widely employed to capture CO2 gas from industrial exhaust streams. To enhance the cost-effectiveness of amine services, the incorporation of glass-reinforced plastic material holds immense potential for substantial cost benefits. The primary aim of this study is to assess the feasibility of utilizing glass-reinforced plastic (GRP) as a construction material for vessels, piping, and ducting in the cold section of the carbon capture and storage (CCS) system. The research examined the potential of completely replacing metallic equipment and piping (such as carbon steel (CS), stainless steel (SS) or SS cladded CS) with GRP materials. The investigation revealed that complete substitution of GRP for certain CO2 service components, including the scrubber, pre-scrubber, tanks, piping, and ducting, may be feasible under specific process conditions. These process conditions encompassed temperatures below 100°C, pressures below 10 bar for piping, and pressures below 0.2 bar for the remaining components. Two fabrication methods, filament winding and contact molding, were employed throughout the design calculations and utilizing corresponding material properties. A chemical compatibility study by Shell, presented at the 2023 AMPP conference and expo (Paper # AMPP-2023-18832), confirmed that the selected resins used to prepare the GRP material are chemically compatible with the commercial amine formulation used for CO2 capturing at the same application limit identified for the present work. The study unequivocally confirmed that glass-reinforced plastic can be incorporated with confidence, adhering to the safety limits prescribed by international standards. This resounding validation strengthens the viability and applicability of GRP in the given context, bolstering its position as a reliable and suitable construction material.
Picture for 97352 FIELD FABRICATION TECHNOLOGY FOR
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97352 FIELD FABRICATION TECHNOLOGY FOR FRP EQUIPMENT UNDER REAL PLANT CONDITIONS WITH EPOXY VINYL ESTER RESINS

Product Number: 51300-97352-SG
ISBN: 97352 1997 CP
Author: D.E. Poland
$20.00