Celebrate World Corrosion Awareness Day with 20% off eCourses and eBooks with code WCAD2024 at checkout!
Organic corrosion inhibitors (CIs) are widely employed in the oil and gas industry to protect carbon steel pipelines against internal corrosion. The high inhibition efficiency of organic CIs at extremely low concentration can be attributed to their amphiphilic molecular structures. This structure enables the formation of self-assembled films that act against corrosion via the adsorption of their hydrophilic head group on the steel substrate and the repellence of aqueous corrosive species by their hydrophobic tail. Consequently, any factors affecting the film formation of organic CIs could lead to changes in inhibition behaviors.
Having a better understanding of the effect of increased temperature on the performance of organic corrosion inhibitors (CIs) is beneficial for their usage in high temperature environments. The present work focuses on studying the effect of temperature on inhibition behaviours of an in-house synthesized CI model compound, tetradecyl phosphate ester (PE-C14), in a simulated refinery environment. Surface saturation concentrations at three temperatures (25°C, 55°C, and 80°C) are determined by exploiting corrosion rate evolution. At low temperature (25˚C), a gelatinous film formed on the rotating cylinder electrode (RCE) surface that significantly affected the limiting current, although the PE-C14 layer was poorly adherent. At elevated temperatures (55˚C and 80˚C), a thick, adherent and readily detectable by EDS and Raman spectroscopy, PE-C14 layer formed on the RCE surface to achieve much lower corrosion rate (inhibition efficiency close to 100%) with relatable surface saturation concentrations.
The drive towards renewable energy, requirement for reduction in fossil fuel consumption and emission of carbon dioxide has received substantial attention from governments and researchers worldwide during the last few decades [1]. The exploration of renewable sources of energy has been grouped into wind, geothermal, tidal and solar energy. Solar energy has shown great promise due to the abundant amount of energy reaching the Earth [2, 3]. Electricity generation from solar irradiation can be achieved by photovoltaic (PV) and photothermal conversion [4].
We are unable to complete this action. Please try again at a later time.
If this error continues to occur, please contact AMPP Customer Support for assistance.
Use this error code for reference:
Please login to use Standards Credits*
* AMPP Members receive Standards Credits in order to redeem eligible Standards and Reports in the Store
You are not a Member.
AMPP Members enjoy many benefits, including Standards Credits which can be used to redeem eligible Standards and Reports in the Store.
You can visit the Membership Page to learn about the benefits of membership.
You have previously purchased this item.
Go to Downloadable Products in your AMPP Store profile to find this item.
You do not have sufficient Standards Credits to claim this item.
Click on 'ADD TO CART' to purchase this item.
Your Standards Credit(s)
1
Remaining Credits
0
Please review your transaction.
Click on 'REDEEM' to use your Standards Credits to claim this item.
You have successfully redeemed:
Go to Downloadable Products in your AMPP Store Profile to find and download this item.
High strength low alloy (HSLA) steels are preferred for oil and gas pipelines due to their outstanding mechanical properties. Sulfide stress cracking (SSC) has been a major problem for the application of HSLA carbon steel because of the wet H2S environment which commonly presents in oil and gas industry. Several techniques are applied to the study of SSC of steels, including constant load test with smooth specimens and DCB testing.
Maintaining the integrity of oilfield equipment is essential to its safe operation and to maximize the efficiency of production. The integrity of oilfield equipment can rely on material selection and control of conditions, however, it is commonly maintained by the applications of chemical corrosion inhibitors (CI). Prior to use, these chemicals must be shown to perform as desired under the field conditions in question. To achieve this, chemicals are often evaluated using robust laboratory-based screening studies to identify potential candidates.