Server maintenance is scheduled for Saturday, December 21st between 6am-10am CST.

During that time, parts of our website will be affected until maintenance is completed. Thank you for your patience.

Menu
Search
Filters
Close
Menu

Integrated Coating System For Corrosion Protection Of Carbon Steel In Artificial Geothermal Brine

Picture for Integrated Coating System For Corrosion Protection Of Carbon Steel In Artificial Geothermal Brine
Available for download

Geothermal energy is a promising choice for alternative energy resources due to its reliability and low CO2 emissions. One way to harness this energy, is to extract hot fluid from a geothermal well. Geothermal fluids are a complex medium with different physical and chemical properties depending on the location and depth of a geothermal well. Thus, these fluids can be corrosive to the geothermal power plant depending on the corrosivity class. The geothermal power plant consists of various parts, such as pipelines and heat exchangers. For continuous power generation, this power plant should be safe and durable. Therefore, it is important to protect the infrastructure in this environment from corrosion.

Product Number: 51322-17708-SG
Author: Gabriela Aristia, Le Quynh Hoa, Ralph Bäßler
Publication Date: 2022
Industries: Corrosion Monitoring and Control , Coatings and Linings , Coatings
$0.00
$20.00
$20.00

Corrosive geothermal brines are a major challenge to geothermal power-plants. For cost reasons, plant designers prefer to use carbon and low alloyed steels, which are susceptible to uniform and localized corrosion when exposed to geothermal brines having acidic and saline properties. To solve such problem, coatings or inhibitors would be a protective solution as an alternative to the use of high alloyed materials.

This study investigated a coating system consisting of polyaniline/silicon dioxide based on resources locally available in Indonesia. Protection against corrosion of carbon steel was shown by long-term (28 day) exposure and electrochemical tests of coated carbon steels, performed in an artificial acidic and saline geothermal brine, comparable to the conditions encountered at a site in Indonesia.

Therefore, an integrated coating system is proposed for corrosion protection, combining the electrochemical functionality of polyaniline and the physical advantages of silica.

Corrosive geothermal brines are a major challenge to geothermal power-plants. For cost reasons, plant designers prefer to use carbon and low alloyed steels, which are susceptible to uniform and localized corrosion when exposed to geothermal brines having acidic and saline properties. To solve such problem, coatings or inhibitors would be a protective solution as an alternative to the use of high alloyed materials.

This study investigated a coating system consisting of polyaniline/silicon dioxide based on resources locally available in Indonesia. Protection against corrosion of carbon steel was shown by long-term (28 day) exposure and electrochemical tests of coated carbon steels, performed in an artificial acidic and saline geothermal brine, comparable to the conditions encountered at a site in Indonesia.

Therefore, an integrated coating system is proposed for corrosion protection, combining the electrochemical functionality of polyaniline and the physical advantages of silica.

Product tags
Also Purchased
Picture for Investigation Of Scale Inhibitor Interference On Sulfate Measurement And Method To Remove The Interference
Available for download

Investigation Of Scale Inhibitor Interference On Sulfate Measurement And Method To Remove The Interference

Product Number: 51322-17595-SG
Author: Ya Liu, Haiping Lu, Rebecca Vilain
Publication Date: 2022
$20.00

Seawater injection is commonly utilized for offshore wells to maintain or increase oil production; however, treatment for seawater before injection is always necessary to reduce or remove bacteria, dissolved oxygen, sulfate, and other impurities. Seawater typically has >2000 mg/L sulfate. Without proper sulfate removal, such high levels of sulfate can cause not only barium sulfate, strontium sulfate, and calcium sulfate scales, but also reservoir souring and H2S corrosion in the presence of sulfate reducing bacteria (SRB). Therefore, sulfate removal from seawater is critical before seawater injection into reservoir.
Picture for IOW Analysis With Installed UT Sensors: How Process Changes Impact Corrosion Rates
Available for download

IOW Analysis With Installed UT Sensors: How Process Changes Impact Corrosion Rates

Product Number: 51322-17611-SG
Author: Mitchell Gribi, Rebecca Henderson, Ivan Morales, Rebecca Franco, Zackary Lerch
Publication Date: 2022
$20.00

Many asset owners struggle to identify the root cause of fluctuating corrosion rates due to unreliable inspection data. Facilities worldwide are tasked with monitoring thousands of Condition Monitoring Locations (CMLs) with established NDE techniques such as manual ultrasonic testing and radiography. While these techniques can provide valuable “snapshots” of the condition of particular locations, limitations and inherent errors can compound leading to ill-advised decision making. Manually taken thickness data can vary greatly and result in unwarranted complacency or excessive and costly inspections.
Picture for Investigating Alternative Mechanisms For Metal-Silicate Scale Formation: Do Metal Hydroxides Play A Role?
Available for download

Investigating Alternative Mechanisms For Metal-Silicate Scale Formation: Do Metal Hydroxides Play A Role?

Product Number: 51322-17702-SG
Author: Michaela Kamaratou, Konstantinos D. Demadis
Publication Date: 2022
$20.00

The polycondensation of silicate to form colloidal silica is a well-known process. Silica formation takes place through an SN2-like mechanism that involves an attack of a mono-deprotonated silicic acid molecule on a fully protonated one. Thus, monomeric silicate species produce silicate dimers, and oligomers, and eventually form colloidal silica particles. Nevertheless, this straightforward silica chemistry can be profoundly affected by the presence of certain metal cations, such as calcium, magnesium, aluminum, and iron. When such cations are present in a process water they enhance the rate of polymerization of silicate ions and induce the formation of metal silicate precipitates.
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support