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- Title
Corrosion research of 3Cr steel in CO<sub>2</sub> environment.
- Authors
Zhang Renyong; Qi Yaquan; Shi Daiyan; Chen Yongbin; Zhang Jinzhong; Ju Lan
- Abstract
The corrosion behaviors of 3Cr steel in simulative CNOOC CO environment have been studied with a high-temperature and high-pressure reactor. Under the conditions that temperature was 60°C, CO2 partial pressure was 1. 5 MPa and the flow velocity of corrosive medium was 1 m/s, two kinds of 3Cr steel samples present severe uniform corrosion, the average corrosion rate of 3Cr steel are 3. 85 mm/a and 3. 24 mm/a respectively. The corrosion products of 3Cr steel in CO2 environment have been analyzed by SEM and EDS. The result indicates that the products of 3Cr steel have two layers, the outer main structure is FeCO3 with stacking loose and low adhesion, the inner layer is product film with enrichment Cr.
- Subjects
STEEL corrosion; MATERIALS at high temperatures; MATERIALS at high pressures; GAS industry; CHEMICAL engineering
- Publication
Chemical Engineering of Oil & Gas / Shi You Yu Tian Ran Qi Hua Gong, 2013, Vol 42, Issue 1, p61
- ISSN
1007-3426
- Publication type
Article
- DOI
10.3969/j.issn.1007-3426.2013.01.014