AMPP Store - Products tagged with 'critical micelle concentration'

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51312-01289-Flow Loop Trial of Corrosion Inhibitor Dose Optimisation by Micelle Detection

Product Number: 51312-01289-SG

ISBN: 01289 2012 CP

Author: Cameron Mackenzie

Publication Date: 2012

$20.00

Initial investigations described at Corrosion 2011. This paper reports on development of a micelle detection instrument. Criteria for interpreting the presence of micelles will be reported and results of a simulated field study to investigate the link between inhibitor micelle presence and corrosion rate. Together with results from real field samples, this data will be presented as development of a new tool for field analysis of brines

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51317--9721-Use of Micelle Detection for Corrosion Inhibitor Screening

Product Number: 51317--9721-SG

ISBN: 9721 2017 CP

Author: Melanie Reid

Publication Date: 2017

$20.00

This paper describes a method of exploiting the critical micelle concentration (CMC) of the corrosion inhibitors to show that the use of CMC can be used as a laboratory screening method for corrosion inhibitor selection.

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51318-11184-Advances in on-site corrosion inhibitor management

Product Number: 51318-11184-SG

Author: Fiona Mackay / Andrew Osnowski / Emma Perfect / Scott Rankin

Publication Date: 2018

$20.00

On-site personnel can now be trained to gather and test samples. Development of this on-site testing kit is described and a case study presented on its use in the field. Feedback provided from on-site personnel, and further development of the method are discussed.

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51318-11476-Critical Micelle Concentration and CO2 Corrosion Inhibition Efficiency of Quaternary Amines

Product Number: 51318-11476-SG

Author: Xiaoji Li / Sandeep Chawla / William Durnie / Jose Vera / Richard Woollam

Publication Date: 2018

$20.00

Rotating cylinder electrode (RCE) methodology with electrochemical impedance spectroscopy (EIS) measurement was applied to study the inhibition behavior of quaternary ammonium compounds on CO2 corrosion of X65 carbon steel.

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Corrosion Inhibitor Surfactant Optimization: Part 1 - Inhibitor Efficiency Approach

Product Number: 51322-18043-SG

Author: Richard C. Woollam, Yasmin Hayatgheib, Joshua Owen, Richard Barker

Publication Date: 2022

$20.00

Corrosion inhibitors provide a critical barrier to internal corrosion, presenting the most cost-effective form of mitigation and enabling operators to use carbon steel where it would otherwise be impractical. The correct selection and validation of inhibitors is essential to ensure successful field deployment, providing safe and reliable operation. However, the selection and optimization of a corrosion inhibitor for a particular field application is not trivial.

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Corrosion Inhibitor Surfactant Optimization: Part 2 – Adsorption Kinetics Approach

Product Number: 51322-18045-SG

Author: Richard C. Woollam, Joshua Owen, Yasmin Hayatgheib, Richard Barker

Publication Date: 2022

$20.00

In the first paper, a mixture design matrix of a homologous series of alkyldimethylbenzylammonium chlorides (BAC) was used to assess the performance and facilitate optimization of a mixed surfactant corrosion inhibitor system based on surface coverage and steady state inhibited corrosion rate.¹ In this second paper, the approach is extended to include adsorption kinetic analysis, as demonstrated in Woollam and Betancourt for a first-order Langmuir kinetic model.²

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Surfactant Corrosion Inhibitor Adsorption and Desorption Kinetics in Aqueous CO2-Containing Environments

Product Number: 51324-20915-SG

Author: Ryan Abou-Shakra; Joshua Owen; Richard C. Woollam; Richard Barker; William H. Durnie

Publication Date: 2024

$40.00

Corrosion inhibitors are commonly employed to internally protect carbon steel pipelines in aqueous carbon dioxide (CO2)-saturated environments, such as those encountered in oil and gas production and geothermal operation. However, unexpected events can occur that lead to periods where corrosion inhibitor addition ceases completely, or the quantity of inhibitor added falls short of the typical concentration required for the desired level of corrosion mitigation. In these instances of interruption, there is a limited understanding of the inhibitor surface residence time, or ‘persistency’, and the associated effects on the corrosion rate of carbon steel. This study examines the influence of the substrate surface condition and inhibitor concentration on the persistency of benzyldimethyltetradecylammonium chloride (BAC-C14) corrosion inhibitor in a CO2-saturated 1 wt.% NaCl brine at 30°C. An electrochemical rotating cylinder electrode (operating at 1000 rpm) coupled with a dilution process was used to simulate persistency. Experimental results using carbon steel at 0.75x and 1x of the surfactant critical micelle concentration (CMC) showed that inhibitor efficiency and persistency improved markedly at the higher concentration. Supplementary experiments using pure iron illustrated an even stronger interaction between inhibitor and substrate, resulting in BAC-C14 failing to desorb after three days of exposure to uninhibited brine. A first-order kinetic model was assessed in its ability to predict the desorption response after dilution, based on fitting to the inhibitor adsorption response. Whilst a strong agreement was obtained between the theoretical desorption profile and experimental desorption data at 0.75xCMC on carbon steel, the model failed to predict the responses at CMC, as well as those on the pure iron substrate, necessitating consideration of other models.

Products tagged with 'critical micelle concentration'

51312-01289-Flow Loop Trial of Corrosion Inhibitor Dose Optimisation by Micelle Detection

51317--9721-Use of Micelle Detection for Corrosion Inhibitor Screening

51318-11184-Advances in on-site corrosion inhibitor management

51318-11476-Critical Micelle Concentration and CO2 Corrosion Inhibition Efficiency of Quaternary Amines

Corrosion Inhibitor Surfactant Optimization: Part 1 - Inhibitor Efficiency Approach

Corrosion Inhibitor Surfactant Optimization: Part 2 – Adsorption Kinetics Approach

Surfactant Corrosion Inhibitor Adsorption and Desorption Kinetics in Aqueous CO2-Containing Environments

Association for Materials Protection and Performance