Effect of O2 and H2S impurities on the corrosion behavior of X65 steel in water-saturated supercritical CO2 system

Sun, Jianbo; Sun, Chi‐Lu; Zhang, Guoan; Li, Xueda; Wei-min, Zhao; Jiang, Tao; Liu, Huifeng; Cheng, Xiangkun; Wang, Yong

doi:10.1016/j.corsci.2016.02.017

Cited by 102 publications

(46 citation statements)

References 33 publications

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“…It was found that the corrosion rate of carbon steel increased with the addition of O 2 to the system due to the inhibition effect of O 2 on the formation of protective FeCO 3 [9]. Sun et al also found that O 2 could inhibit the formation of FeCO 3 and dominate the corrosion process in the supercritical CO 2 -H 2 O-O 2 system [10]. Lin et al reported that in the CO 2 -O 2 environment, dissolved O 2 damaged the integrity of corrosion scale of 3Cr steel by precipitation of Fe(OH) 3 at localized area, which caused the non-uniform distribution of Cr, leading to the pitting corrosion and high corrosion rate [11].…”

Section: Introductionmentioning

confidence: 99%

“…This inhibition effect was attributed to the formation of thin FeS film on the steel surface that suppressed the anodic dissolution [13]. Sun et al pointed out that a low concentration (2000 ppmv) of H 2 S accelerated the corrosion rate of X65 steel owing to the additional cathodic reaction and the water phase precipitation promoted by H 2 S in supercritical CO 2 -H 2 O-H 2 S system [10]. …”

Section: Introductionmentioning

confidence: 99%

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The Coupling Effect of O2 and H2S on the Corrosion of G20 Steel in a Simulating Environment of Flue Gas Injection in the Xinjiang Oil Field

et al. 2018

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Flue gas injection for heavy oil recovery has received a great deal of attention, because it is more cost effective than lots of other injection methods. However, the corrosion could occur easily, because the flue gas usually contains corrosive gases such as CO2, H2S, and O2. In this work, the corrosion behaviors of G20 steel in flue gas injection environment simulating Xinjiang oil field (China) were investigated using weight loss measurement and surface characterization techniques. The effect of environments including the O2-containing environment, the H2S-containing environment, and the O2-H2S-coexisting environment on the corrosion of G20 steel in gas phase and liquid phase was discussed. The results show that the corrosion rate of G20 steel in the O2-H2S-coexisting environment is much higher than the sum of corrosion rates of the O2-containing environment and the H2S-containing environment, regardless of the gas phase and the liquid phase. This indicates that there is a coupling effect between O2 and H2S, which can further accelerate the corrosion of steel in O2-H2S-coexisting environment. The results of surface characterization demonstrate that in a typical flue gas injection environment, the corrosion products are composed of FeCO3, FeS, FeO(OH), and elemental sulfur. Elemental sulfur could obviously accelerate the corrosion of steel. Therefore, it can be considered that the coupling effect of O2 and H2S on corrosion of G20 steel in flue gas injection environment is caused by the formation of elemental sulfur in corrosion products.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Coupling Effect of O2 and H2S on the Corrosion of G20 Steel in a Simulating Environment of Flue Gas Injection in the Xinjiang Oil Field

et al. 2018

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“…Many studies indicated that when O 2 , H 2 S or SO 2 are present in supercritical CO 2 system containing NO 2 , the interactions among these impurities can promote the formation of H 2 SO 4 and elemental sulfur [32,36,39]. The solubility of H 2 SO 4 in CO 2 is very low (high dew point) due to the hydrogen bonding [15,36].…”

Section: Effect Of Sour Impurity On Corrosion Of X65 Steelmentioning

confidence: 99%

“…However, H 2 SO 4 can cause the localized corrosion due to its slow diffusivity in CO 2 [3,21,23]. In addition, the formation of elemental sulfur has significant effect on the corrosion of carbon steel, especially in the initiation of localized corrosion [32,36].…”

Section: Effect Of Sour Impurity On Corrosion Of X65 Steelmentioning

confidence: 99%

“…It is well known that H 2 S is an important factor that affects the corrosion of carbon steel in oil and gas fields [28][29][30]. Recently, Choi et al [24], Wei et al [31] and Sun et al [32] consecutively reported the effect of low concentrations of H 2 S on the corrosion of carbon steel in supercritical CO 2 system, which suggested that the H 2 S corrosion risk of supercritical CO 2 transport pipeline cannot be ignored.…”

Section: Introductionmentioning

confidence: 96%

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Effect of impurity on the corrosion behavior of X65 steel in water-saturated supercritical CO2 system

Sun

Wang

Sun

et al. 2016

The Journal of Supercritical Fluids

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Fabrication of Superhydrophobic Nickel‐Reduced Graphene Oxide Coating with Corrosion Resistance in High‐Temperature and High‐Pressure CO₂ Environment

et al. 2021

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A novel superhydrophobic nickel‐reduced graphene oxide (sNi‐rGO) coating is fabricated successfully on an N80 steel substrate using a simple electrodeposition method combined with a directly elevated current approach. The results show that the water contact angle (WCA) of the coating is 162.87° when the concentration of graphene oxide (GO) is 0.6 g L−1. The autoclave experiments indicate that the coatings still maintain superhydrophobic and corrosion resistance under high‐temperature and high‐pressure CO2 condition. The density functional theory calculations are employed to investigate the adsorption models of carbonate (CO32−) on the surfaces of iron (Fe), nickel (Ni), and rGO to further verify the CO2 corrosion resistance mechanism of the sNi‐rGO coating.

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Effect of O2 and H2S impurities on the corrosion behavior of X65 steel in water-saturated supercritical CO2 system

Cited by 102 publications

References 33 publications

The Coupling Effect of O2 and H2S on the Corrosion of G20 Steel in a Simulating Environment of Flue Gas Injection in the Xinjiang Oil Field

The Coupling Effect of O2 and H2S on the Corrosion of G20 Steel in a Simulating Environment of Flue Gas Injection in the Xinjiang Oil Field

Effect of impurity on the corrosion behavior of X65 steel in water-saturated supercritical CO2 system

Fabrication of Superhydrophobic Nickel‐Reduced Graphene Oxide Coating with Corrosion Resistance in High‐Temperature and High‐Pressure CO₂ Environment

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Effect of O2 and H2S impurities on the corrosion behavior of X65 steel in water-saturated supercritical CO2 system

Cited by 102 publications

References 33 publications

The Coupling Effect of O2 and H2S on the Corrosion of G20 Steel in a Simulating Environment of Flue Gas Injection in the Xinjiang Oil Field

The Coupling Effect of O2 and H2S on the Corrosion of G20 Steel in a Simulating Environment of Flue Gas Injection in the Xinjiang Oil Field

Effect of impurity on the corrosion behavior of X65 steel in water-saturated supercritical CO2 system

Fabrication of Superhydrophobic Nickel‐Reduced Graphene Oxide Coating with Corrosion Resistance in High‐Temperature and High‐Pressure CO2 Environment

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Product

Resources

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Fabrication of Superhydrophobic Nickel‐Reduced Graphene Oxide Coating with Corrosion Resistance in High‐Temperature and High‐Pressure CO₂ Environment