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2013, vol. 54, br. 3, str. 291-296
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Inspekcija i upravljanje korozijom u rafineriji nafte OKTA
Corrosion inspection and management in OKTA crude oil refinery
Sažetak
Pojava korozije predstavlja veliki problem u naftnoj industriji. Oštećenja usled korozije su glavni razlog za pojavu defekata opreme i cevovoda, što utiče na smanjenje efikasnosti procesa i značajno uvećava troškove. Takođe, defekti prouzrokovani korozijom predstavljaju opasnost za zaposlene, kao i za okolinu. Zbog ovoga, inspekcija i upravljanje korozijom predstavljaju ključni aspekat menadžmenta svake rafinerije nafte. Tema ovog rada je analiza glavnih uzroka i najčešćih tipova korozije koji se sreću u rafineriji OKTA, kao i upravljanje korozijom. Detekcija korozije se uglavnom obavlja putem vizuelne kontrole. Stanje materijala se ispituje ultrazvučnim merenjem debljine i defektoskopijom kao i merenjem tvrdoće, dok se oprema podložena visokotemperaturnim uslovima ispituje infracrvenom kamerom. Inspekcijski izveštaji se koriste za određivanje brzine korozije, proračune preostalog vremena upotrebe opreme i ispitivanje pogodnosti za korišćenje.
Abstract
The appearance of corrosion presents a major issue in the petroleum industry. The corrosive deterioration is the main cause for the equipment and piping breakdown and failure, which reduces the process efficiency and increases the costs significantly. Also, failures due to corrosion pose a threat for the personnel, as well as for the environment. For these reasons, the corrosion inspection and management is an essential aspect of the management of every petroleum refinery. The subject of this paper is the analysis of the main causes and the most common types of corrosion present in OKTA, as well as corrosion management. The corrosion detection is primarily done by visual inspection. The condition of the material is inspected with ultrasonic thickness measurement and defectoscopy, and hardness measurement. The equipment subjected to high-temperature conditions is inspected with IR camera. The inspection reports are used for corrosion rate determination, remaining life calculations and fitness for service.
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Reference
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