Sour Top-of-the-Line Corrosion in the Presence of Acetic Acid

被引:2
|
作者
Singer, M. [1 ]
Camacho, A. [2 ]
Brown, B. [1 ]
Nesic, S. [1 ]
机构
[1] Ohio Univ, Inst Corros & Multiphase Technol, Athens, OH 45701 USA
[2] Lloyds Register Capstone, Houston, TX USA
关键词
acetic acid; carbon dioxide; hydrogen sulfide; top-of-the-line corrosion;
D O I
暂无
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Under stratified flow and dewing conditions, internal corrosion can occur at the top of horizontal pipelines where continuous injection of corrosion inhibitors does not have a mitigating effect. This research work presents an experimental study of the influence of the presence of hydrogen sulfide (H2S; up to 0.13 bars) and acetic acid (HAc; up to 1,000 ppm) on carbon dioxide (CO2) top-of-the-line corrosion. The study was performed in a 10 cm (4 in) internal diameter flow loop with system conditions constant at 70 degrees C. 2 bars partial pressure CO2. 3 bars total pressure, 5 m/s gas velocity, and a water condensation rate of 0.25 mL/m(2)/s. A comprehensive analysis on the effect of these parameters (partial pressure of H2S and concentration of acetic acid) on the type of corrosion product film formed at the top of the line is performed.
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页数:16
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