AMPP Store - Products tagged with 'chemical inhibitors'

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51317-9586- Polymer and Nanomaterial Based Inhibitors: Stimuli-Responsive

Product Number: 51317-9586-SG

ISBN: 9586 2017 CP

Author: Rigoberto C. Advincula

Publication Date: 2017

$20.00

Principles and work investigating various corrosion and scaling inhibitors for the production and process industries. The use of block-copolymers and hyperbranched oligomeric design in inhibitors is of a high interest. Also involved are a number of analytical and testing methods

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Evaluation of Seawater Treatments to Mitigate the Corrosion Rate of Carbon Steels and CRAs Rigid Pipeline During Pre-Commissioning Operations and Long-Term Wet Storage

Product Number: 51324-21050-SG

Author: Charles Leballeur; Quang-Tung Tran; Krystel Pélissier; Nicolas Larché

Publication Date: 2024

$40.00

Once installed at the seabed, subsea rigid pipes in Carbon steel (CS), Low Alloys Steels (LAS) or in Corrosion Resistant Alloys (CRAs) can be wet stored for various durations. During this idle period, the lines can be filled with natural seawater generally treated with different types of chemicals, to mitigate localized corrosion initiation of stainless steel or the general corrosion of carbon steel. The chemicals are usually oxygen scavengers combined with or without biocides and corrosion inhibitor. Field experiences show that satisfying efficiency is obtained with some chemical’s combination. However, only few data are available in the literature to quantify separately the actual benefit of these chemicals and their combination. The needs to investigate sustainable alternative chemicals for these wet storage operations are also anticipated. In order to quantify the individual and synergistic effects of the selected chemicals, API 5L X65 carbon steel and UNS S31603 stainless steel were exposed for one year in seawater treated by different available combinations of oxygen scavenger, biocides, and corrosion inhibitors. Environmental-friendly chemicals have also been assessed as possible alternatives to conventional biocides. The corrosion rate of carbon steel coupons immersed in specific exposure cells, that simulate the confined exposure conditions during the wet storage, have then been determined by weight loss measurements after 3 weeks, 2, 6, and 12 months. The impact of the treatments on the corrosion rate and the bacterial activity have also been studied by Dissolved Oxygen Content (DOC) and Open Circuit Potential (OCP) monitoring, Electric Resistance (ER) measurements, and bacterial analysis. The current investigation shows that low DOC levels have been achieved which inhibited the so-called “biofilm ennoblement” of stainless steel. Thus, no corrosion occurred for UNS S31603. Such results are also applicable to most CRAs under similar exposure environment. The synergic effects of oxygen scavenger, biocides and corrosion inhibitor on the corrosion rate of carbon steel are also discussed.

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Intellisyn™ - A New Class Of Multifunctional Smart Particles For Advanced Corrosion Protection

Product Number: 51322-17959-SG

Author: Benjamin Pearman, Xuejun Zhang, Dillon Campbell, Victoria Scarborough, Stephen Dickey

Publication Date: 2022

$20.00

Left unprotected, metals corrode quickly which over time contributes to the loss of structural integrity and the failure of buildings, bridges, oil & gas platforms, airplanes, cars and many other metal assets, all of which pose a risk to human safety and the surrounding environment. In 2016, the National Association for Corrosion Engineers (NACE) – now known as AMPP – published a landmark study, well-known to those attending this conference, that estimated the direct cost of corrosion to the world economy as $2.5T per year, equivalent to 3.4% of the Gross World Product (1). In the United States, the annual cost of corrosion is estimated at 3.1% of gross domestic product (2), equivalent to $635B (2018). When including indirect costs, such as asset downtime, ship dry-docking and the impact of bridge collapses, the cost of corrosion is estimated at twice that amount.

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Long Distance, Long Duration Case Study of Successful Inhibitor Application on a Very Light Hydrocarbon Pipeline

Product Number: 51324-21214-SG

Author: Trevor Place; Tyler Markowski; Jennifer Sargent; Hitesh Bagaria

Publication Date: 2024

$40.00

The operating mileage of North American pipelines transporting low density, high API gravity hydrocarbon liquids has increased significantly over the past two decades. This trend began in the early 2000’s because of increasing oil sands production in Canada, where light hydrocarbons are used to reduce the viscosity of bitumen to achieve practical ‘heavy oil’ specifications suitable for pipeline transport. The light tight oil boom of the 2010’s continued this trend, as multistage fracking unlocked high API gravity liquids from previously low permeability shale and sandstone formations. While different in origin and composition, light tight oils (LTOs), diluents used for bitumen transportation, and some refined products are similar in terms of density (density 680-800 kg/m3, or API 35-70), viscosity (<1cSt), and steel surface wetting behavior (hydrophilic). In previous works, the use of the NACE TM0172 ‘spindle test’ was demonstrated as an effective screening tool to assess the performance of corrosion inhibitors1 and led to the recommendation of hydrocarbon soluble inhibitors. Digital coupon analysis was used to provide unbiased quantification of results allowing better discrimination of inhibitor performance.2 The authors also provided an exploration of parasitic inhibitor consumption by fluid borne particulate.3 This work completes a decade-long pipeline case history where effective corrosion inhibition was used to solve a myriad of particulate related issues in a long-distance diluent carrying pipeline. Significant learnings about the performance and longevity of inhibitor (successfully applied at only one location of a 2500 km pipeline), the measurement of dissolved and particulate adsorbed inhibitor, the effect of maintenance pigging on the inhibitor film, and unexpected learnings about the ability of the inhibitor to disperse accumulated particulate is presented.

Products tagged with 'chemical inhibitors'

51317-9586- Polymer and Nanomaterial Based Inhibitors: Stimuli-Responsive

Evaluation of Seawater Treatments to Mitigate the Corrosion Rate of Carbon Steels and CRAs Rigid Pipeline During Pre-Commissioning Operations and Long-Term Wet Storage

Intellisyn™ - A New Class Of Multifunctional Smart Particles For Advanced Corrosion Protection

Long Distance, Long Duration Case Study of Successful Inhibitor Application on a Very Light Hydrocarbon Pipeline

Association for Materials Protection and Performance