Dataset Information

Effect of CO? Partial Pressure on the Corrosion Behavior of J55 Carbon Steel in 30% Crude Oil/Brine Mixture.

ABSTRACT: The influence of CO? partial pressure on the corrosion properties, including corrosion rate, morphology, chemical composition, and corrosion depth, of J55 carbon steel in 30% crude oil/brine at 65 °C was investigated. A corrosion mechanism was then proposed based on the understanding of the formation of localized corrosion. Results showed that localized corrosion occurred in 30% crude oil/brine with CO?. The corrosion rate sharply increased as the CO? partial pressure (P co 2 ) was increased from 0 to 1.5 MPa, decreased from P co 2 = 1.5 MPa to P co 2 = 5.0 MPa, increased again at P co 2 = 5.0 MPa, and then reached a constant value after P co 2 = 9.0 MPa. The system pH initially decreased, rapidly increased, and then stabilized as CO? partial pressure was increased. In the initial period, the surface of J55 carbon steel in the CO?/30% crude oil/brine mixtures showed intense corrosion. In conclusion, CO? partial pressure affects the protection performance of FeCO? by changing the formation of corrosion scale and further affecting the corrosion rate.

SUBMITTER: Bai H

PROVIDER: S-EPMC6164131 | biostudies-other | 2018 Sep

REPOSITORIES: biostudies-other

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Effect of CO₂ Partial Pressure on the Corrosion Behavior of J55 Carbon Steel in 30% Crude Oil/Brine Mixture.

Bai Haitao H Wang Yongqing Y Ma Yun Y Zhang Qingbo Q Zhang Ningsheng N

Materials (Basel, Switzerland) 20180918 9

The influence of CO₂ partial pressure on the corrosion properties, including corrosion rate, morphology, chemical composition, and corrosion depth, of J55 carbon steel in 30% crude oil/brine at 65 °C was investigated. A corrosion mechanism was then proposed based on the understanding of the formation of localized corrosion. Results showed that localized corrosion occurred in 30% crude oil/brine with CO₂. The corrosion rate sharply increased as the CO₂ partial pressure (P co 2 ) was increased fro ...[more]

PMID: 30231549

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Dataset Information

Effect of CO? Partial Pressure on the Corrosion Behavior of J55 Carbon Steel in 30% Crude Oil/Brine Mixture.

Publications

Effect of CO₂ Partial Pressure on the Corrosion Behavior of J55 Carbon Steel in 30% Crude Oil/Brine Mixture.

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