Sulphide corrosion products in carbon steel after prolonged service in low-sulphur refinery environment

• Autorzy: Hucińska J.
• Języki publikacji: EN

Abstrakty

EN

Characteristics of sulphide corrosion products in K18 carbon steel after 11 years of service in a low-sulphur refinery furnace environment have been examined in order to better understand the mechanism of sulphur-related damage to the steel. Optical microscope and scanning/transmission electron microscopes techniques have been involved in the study. Four types of the corrosion products of different morphology and origin have been presented: (1) iron sulphide scale on the steel surface, (2) sulphur-rich particles at ferrite grain boundaries, (3) degraded sulphur-enriched cementite particles at other ferrite grain boundaries and similar particles within pear-lite grains, and (4) irregular iron sulphide inclusions in the subsurface metal layer that were not-related to the boundaries of the grains.

Słowa kluczowe

EN

sulphide corrosion; steel test; carbon steel; sulphur-related damage; iron sulphide scale

• Wydawca: Politechnika Gdańska
• Czasopismo: Advances in Materials Science
• Rocznik: 2001
• Tom: Vol. 1, nr 1(1)
• Strony: 46--52
• Opis fizyczny: Bibliogr. 6 poz., 6 rys., 4 tab.

Twórcy

autor

Hucińska J.

• Faculty of Mechanical Engineering, Technical University of Gdańsk, Poland

Bibliografia

• 1. Gutzeit J., in: Process industry corrosion – the theory and practice. NACE, Houston, 1986.
• 2. Couper A.S., Gorman J.W.: Computer correlations to estimate high temperature H2S corrosion in refinery streams. Materials Protection and Performance 10 (1971), pp. 31-37.
• 3. Lai G.Y.: High-temperature corrosion of engineering alloys. ASM Int., Materials Park, OH, 1997.
• 4. McCoy J.D.: Corrosion rates for H2S at elevated temperatures in refinery hydrodesulfurization processes. Materials Performance 13 (1974), pp. 19 -25.
• 5. McCoy J.D., Hamel F.B.: Effect of hydrodesulfurizing process variables on corrosion rates. Materials Protection and Performance 10 (1971), pp. 17-22.
• 6. Couper A.S.: High temperature mercaptan corrosion of steel. Corrosion 19 (1963), pp. 396t-401t.