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Influence of Carbon Dioxide and Gas Condensate on the Corrosion Rate of 20 Steel in Deaerated NACE Solutions

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We investigate the influence of gas condensate on the corrosion rate of 20 steel in deaerated and CO2 - saturated NACE solutions. It is shown that, as a result of the removal of oxygen by blowing-through the solution with nitrogen under the conditions of stirring at 50°С, the corrosion rate of steel decreases by 11.5% as compared with its corrosion rate in naturally aerated solutions. As a result of the saturation of the deaerated solution with carbon dioxide, the corrosion rate becomes 2.5 timed higher and, as a result of the addition of 20 vol.% gas condensate and 20 vol.% methanol, decreases by a factor of 8.5 in the deaerated NACE solution and by a factor of 8.8 in the NACE solution saturated with CO2, which guarantees the degree of corrosion protection of steel equal to 88–89%.

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Authors and Affiliations

  1. Karpenko Physicomechanical Institute, Ukrainian National Academy of Sciences, Lviv, Ukraine

    Z. V. Slobodyan, L. A. Mahlatyuk & R. B. Kupovych

Authors
  1. Z. V. Slobodyan
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  2. L. A. Mahlatyuk
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  3. R. B. Kupovych
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Correspondence to L. A. Mahlatyuk.

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Translated from Fizyko-Khimichna Mekhanika Materialiv, Vol. 49, No. 3, pp. 34–38, May–June, 2013.

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Slobodyan, Z.V., Mahlatyuk, L.A. & Kupovych, R.B. Influence of Carbon Dioxide and Gas Condensate on the Corrosion Rate of 20 Steel in Deaerated NACE Solutions. Mater Sci 49, 311–317 (2013). https://doi.org/10.1007/s11003-013-9616-0

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  • DOI: https://doi.org/10.1007/s11003-013-9616-0

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