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Mitigation of Soil-Side Bottom Corrosion of Aboveground Storage Tanks Utilizing Volatile Corrosion

Picture for Mitigation of Soil-Side Bottom Corrosion of Aboveground Storage Tanks Utilizing Volatile Corrosion
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Electrical resistance probes monitor mitigation of corrosion. Data will be presented from multiple installations demonstrating the ability of volatile corrosion inhibitors to mitigate corrosion for soil-side bottoms of aboveground storage tanks.

Product Number: 51317--9462-SG
ISBN: 9462 2017 CP
Author: Kelly Baker
Publication Date: 2017
Industry: Pipelines, Tanks, and Underground Systems
$0.00
$20.00
$20.00

Aboveground storage tanks are mission critical assets in the chemical and petrochemical industries. Corrosion of the tanks bottom plates poses a significant challenge to maintaining the integrity of those assets. Coatings have been shown to be effective in mitigating corrosion on the product side of the bottom plates but aren’t viable for providing corrosion protection to the soil-side of the bottom plates.Volatile corrosion inhibitors have gained industry acceptance as an effective means in mitigating corrosion for the soil-side of the bottom plates and have been utilized across a wide variety of tank foundation designs including a concrete ring wall double bottom and hard pad such as concrete or asphalt. Volatile corrosion inhibitors can also mitigate corrosion for soil-side bottoms in areas where traditional cathodic protection systems are not effective such as double bottoms hard pads or when the cathodic protection system has failed.Electrical resistance probes are typically utilized to monitor the effectiveness of the volatile corrosion inhibitors in mitigating corrosion of the soil side bottom plates. Data will be presented from multiple installations demonstrating the ability of volatile corrosion inhibitors to mitigate corrosion for soil-side bottoms.

Key words: Volatile corrosion inhibitors (VCI), aboveground storage tank (AST), electrical resistance probes, soil-side bottom, cathodic protection (CP)

 

Aboveground storage tanks are mission critical assets in the chemical and petrochemical industries. Corrosion of the tanks bottom plates poses a significant challenge to maintaining the integrity of those assets. Coatings have been shown to be effective in mitigating corrosion on the product side of the bottom plates but aren’t viable for providing corrosion protection to the soil-side of the bottom plates.Volatile corrosion inhibitors have gained industry acceptance as an effective means in mitigating corrosion for the soil-side of the bottom plates and have been utilized across a wide variety of tank foundation designs including a concrete ring wall double bottom and hard pad such as concrete or asphalt. Volatile corrosion inhibitors can also mitigate corrosion for soil-side bottoms in areas where traditional cathodic protection systems are not effective such as double bottoms hard pads or when the cathodic protection system has failed.Electrical resistance probes are typically utilized to monitor the effectiveness of the volatile corrosion inhibitors in mitigating corrosion of the soil side bottom plates. Data will be presented from multiple installations demonstrating the ability of volatile corrosion inhibitors to mitigate corrosion for soil-side bottoms.

Key words: Volatile corrosion inhibitors (VCI), aboveground storage tank (AST), electrical resistance probes, soil-side bottom, cathodic protection (CP)

 

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Premature Failure of API 650 Oil Storage Tank Bottom Plates Due to Soil Side Corrosion

Product Number: 51317--9025-SG
ISBN: 9025 2017 CP
Author: Naif Abri
Publication Date: 2017
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The above ground storage tanks in the refinery are experiencing bottom plate underside (soil) corrosion at a high rate of 1mm/year. Results: Failure of 4 tanks within a period of 9 years. Observations, details of the CP survey, tests, results and forward path taken up.

 
Picture for Corrosion Protection of Soil Side Bottoms of Aboveground Storage Tanks
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51314-4337-Corrosion Protection of Soil Side Bottoms of Aboveground Storage Tanks

Product Number: 51314-4337-SG
ISBN: 4337 2014 CP
Author: Efim Lyublinski
Publication Date: 2014
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Picture for 51318-11218-A Case Study of Soil-Side Corrosion of Aboveground Storage Tanks in the Middle East
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51318-11218-A Case Study of Soil-Side Corrosion of Aboveground Storage Tanks in the Middle East

Product Number: 51318-11218-SG
Author: Hanan Farhat
Publication Date: 2018
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Soil-side corrosion of the bottom plates of aboveground storage tanks is the main cause of tank failure. A case study is discussed in this paper, in which failures of three storage tanks were investigated. Soil analysis revealed high salt content and low resistivity.
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