Influence of H2S on degradation of 9Cr-1Mo steel in advanced stage of metal dusting process

• Autorzy: Dampc, J. , Grzesik, Z. , Hucińska, J.
• Języki publikacji: EN

Abstrakty

EN

Samples of 9Cr-1Mo steel in an advanced stage of metal dusting after 10 years' service in CCR platforming unit have been under studies to consider a decision about dosage of a sulphur compound to the feed to stop degradation process of the steel. Effects of long-term exposure of the samples in a mixture of H2-H2S at 600°C have been examined. The examinations revealed that the exposure results in some unfavourable processes: diffusion of sulphur into the subsurface layer of the steel, formation of sulphide scale and diffusion of carbon in front of sulphur inside the steel.

Słowa kluczowe

EN

CCR platforming unit; 9Cr-1Mo steel; metal dusting; sulphur

• Czasopismo: Advances in Materials Science
• Rocznik: 2007
• Tom: Vol. 7, nr 2(12)
• Strony: 7-12
• Opis fizyczny: Bibliogr. 9 poz., rys., tab.

Twórcy

autor

Dampc, J.

autor

Grzesik, Z.

autor

Hucińska, J.

• Lotos Group SA Gdańsk, Poland

Bibliografia

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