Investigation of Pipeline Corrosion in Pressurized CO2 Containing Impurities

Abstract Transmission of captured CO2 in pipelines is an essential part of the carbon capture and sequestration process chain. Dependent of the fuel, the combustion process and the capture technology the resulting gas contains impurities that might cause corrosion effects in pipelines constructed of low alloyed steels. Corrosion testing under simulated conditions therefore is a prerequisite for the installation of reliable and safe CCS systems. Sulfur and nitrogen oxides together with water vapor form corrosive acids. Their behaviours and corrosive effects in static pressurized experiments were critically investigated in the present study. The results indicate that experimental limitations might influence the predictive capability of corrosion tests with sulfur dioxide. The limited supply of corrosive constituents in static test might lead to an underestimation of the corrosion risk.

[1]  Aki Sebastian Ruhl,et al.  Corrosion Behavior of Various Steels for Compression, Transport and Injection for Carbon Capture and Storage , 2012 .

[2]  L. Johansson,et al.  The corrosion of unprotected steel in an inert-gas atmosphere containing water vapour, oxygen, nitrogen and different amounts of sulphur dioxide and carbon dioxide , 1981 .

[3]  Aki Sebastian Ruhl,et al.  Corrosion behavior of various steels in a continuous flow of carbon dioxide containing impurities , 2012 .

[4]  Yoon-Seok Choi,et al.  Effect of impurities on the corrosion behavior of CO2 transmission pipeline steel in supercritical CO2-water environments. , 2010, Environmental science & technology.

[5]  Marion Seiersten,et al.  Baseline Experiments for the Modeling of Corrosion at High CO2 Pressure , 2004 .

[6]  Arne Dugstad,et al.  Corrosion of transport pipelines for CO2–Effect of water ingress , 2011 .

[7]  Arne Dugstad,et al.  Transport of Dense Phase CO2 In C-steel Pipelines - When is Corrosion an Issue? , 2011 .

[8]  Aki Sebastian Ruhl,et al.  Corrosion in supercritical CO2 by diffusion of flue gas acids and water , 2012 .

[9]  Yoon-Seok Choi,et al.  Determining the corrosive potential of CO2 transport pipeline in high pCO2-water environments , 2011 .

[10]  Marion Seiersten,et al.  Materials Selection for Separation, Transportation and Disposal of CO2 , 2001 .

[11]  Chao Xu,et al.  Impact of SO2 concentration on the corrosion rate of X70 steel and iron in water-saturated supercritical CO2 mixed with SO2 , 2011 .

[12]  N. Sridhar,et al.  Effect Of Impurities On Corrosion Of Steel In Supercritical CO2 , 2010 .

[13]  N. Robert Sorensen,et al.  Corrosive effects of supercritical carbon dioxide and cosolvents on metals , 1996 .

[14]  Marion Seiersten,et al.  Materials Selection for Capture, Compression, Transport and Injection of CO 2 , 2005 .

[15]  N. Birbilis,et al.  State of the aqueous phase in liquid and supercritical CO2 as relevant to CCS pipelines , 2012 .

[16]  S. Oesch.  The effect of SO2, NO2, NO and O3 on the corrosion of unalloyed carbon steel and weathering steel—The results of laboratory exposures , 1996 .