Corrosion Monitoring and Nondestructive Testing in Systems Containing Fuels

CATEGORY: CORROSION
Corrosion in Systems for Storage and Transportation of Petroleum Products and Biofuels, 2014,   pp 187-210 
Corrosion Monitoring and Nondestructive Testing in Systems Containing Fuels
Alec Groysman
Association of Engineers and Architects in Israel, Israeli Society of Chemical Engineers & Chemists, Tel Aviv, Israel
Abstract
Describes Nondestructive Testing (NDT) techniques used in fuel systems. These include visual examination, ultrasonic testing (UT), eddy current and their modifications, acoustic emission (AE), radiography, infrared thermography, penetrant testing, magnetic and electromagnetic methods.
On-site chemical analysis of alloys also is described. Weight Loss (WL) and electrical resistance (ER) methods are analyzed. Examination and control of the environment include chemical analytical, physico-chemical, physical, and microbiological analysis of media (crude oil, fuels, water, two-phase solution, gaseous phase, and soil) which contact surface of tanks and pipes. Control of the interphase metal–environment is based on its physico-chemical properties, and includes electrochemical methods, identification of corrosion products and deposits, and examination of the morphology of the metal surface.
On-line real-time corrosion monitoring methods including cathodic protection efficiency employed for corrosion monitoring in systems containing fuels also are described. Maximum recommended intervals between inspections of tanks containing different fuels are given. Standards for corrosion monitoring and testing are recommended.
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