TY - CONF A1 - Le, Quynh Hoa A1 - Bäßler, Ralph A1 - Yevtushenko, Oleksandra A1 - Kratzig, Andreas A1 - Bettge, Dirk T1 - Synergistic effects of impurities in the condensate on the corrosion of CO2 transport pipeline N2 - For the reliability of transport pipelines the corrosion resistance of the materials used needs to be determined in conditions, which are possible during the transport process. In some situations condensation of components out of the CO2 stream can occur. To study the effect of condensate on transport pipeline steel, a “worst-case scenario” gas mixture, containing 2.5 % H2O, 1.8 % O2, 1000 ppmv NO2, and 220 ppmv SO2, was proposed, fed (1.5 L/min) into a glass reactor containing coupon-shaped specimens for 120 600 h at 278 K (to simulate the underground pipeline transport), and resulted in the condensate containing 0.114 M H2SO4 and 0.0184 M HNO3 (pH 2.13). Basing on this “original” condensate, exposure tests and electrochemical characterization together with pH and conductivity in CO2 saturated condition at the same temperature were carried out. The role of each gas impurity and the combination of them, when the condensate is formed, was studied by investigating the role of individual and varying combination of acidic components in the condensate on the corrosion behaviors of the commercial pipeline-steel (L360NB). It can be concluded that although the condensation of NOx in form of HNO3 causes faster corrosion rate, it is the condensation of SOx or the combination of SOx and NOx that may cause much more severe problems in form of localized and pitting corrosions. Different to the corrosion products formed in CO2 atmosphere without impurities (mainly iron carbonate) the corrosion products resulted from these acidic condensation have no protectability, indicating the need of controlling gas quality during the transportation within the pipeline network. T2 - EUROCORR 2017 - PRAG CY - Prague, Czech Republic DA - 03.09.2017 KW - CCUS KW - CO2 corrosion KW - Carbon steels KW - Condensate PY - 2017 SP - Paper 75636,.1 EP - 4 AN - OPUS4-41874 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Bäßler, Ralph A1 - Yevtushenko, Oleksandra A1 - Carrillo Salgado, I. T1 - Corrosion behavior of highly alloyed steels in artificial saline aquifer fluids containing carbon dioxide KW - Highly alloyed steels KW - Carbon dioxide KW - Pitting corrosion PY - 2012 SN - 0430-6252 VL - 9 IS - 2 SP - 393 EP - 396 CY - L'viv, Ukrainian national academy of science AN - OPUS4-26056 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Yevtushenko, Oleksandra T1 - Elektrochemische Untersuchungen in Nitratsalzschmelzen T2 - GfKorr Arbeitskreissitzung Korrosion und Korrosionsschutz von Eisen und Stahl CY - Duisburg, Germany DA - 2013-12-03 PY - 2013 AN - OPUS4-29686 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bäßler, Ralph A1 - Le, Quynh Hoa A1 - Yevtushenko, Oleksandra A1 - Bettge, Dirk T1 - Corrosion Aspects for Materials to be Used in CC(U)S Applications N2 - This contribution provides current findings regarding materials susceptibility for carbon capture, utilization and storage (CCUS) applications. Basing on results gathered in 2 German long-term projects (COORAL and CLUSTER) suitable materials are introduced as well as dominating impurities of the CO2-stream and corrosion mechanisms. Investigations cover the whole CCUS process chain and provide material recommendations for certain parts. T2 - 1st International Conference on Corrosion Protection and Application CY - Chongqing, China DA - 09.10.2019 KW - Carbon KW - Capture KW - Storage KW - Utilization KW - CCS KW - CCU KW - CO2 KW - Corrosion KW - Steel PY - 2019 SP - Paper 31 PB - Chinese Society for Corrosion and Protection CY - Chongqing/China AN - OPUS4-49301 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Le, Quynh Hoa A1 - Bäßler, Ralph A1 - Yevtushenko, Oleksandra A1 - Bettge, Dirk T1 - On the corrosion mechanism of CO2 transport pipeline steels caused by impurities: roles of each impure components and benchmarks N2 - Carbon Capture, Utilization and Storage (CCUS) has been proposed as a promising technology for the mitigation of CO2 emissions into the atmosphere from fossil-fuel-operated power generation plants. As the reliability and cost effectiveness of the pipeline transport network is crucial to the overall operability and resilience of the CCUS system, it is vital to realize the possible corrosion risks of the employed pipeline steels corresponding to the impurity level of the gas source. Recent studies have shown that even the high alloyed materials might be susceptible to general and/or localized corrosion by the condensates forming from the impurities such as SOx, NOx, CO, O2 and water [1]. Up to now, however, there is no regulation procedure which defines the maximum acceptable level of impurities and the combination of them for each employed pipeline steels. Herein, systematic experiment series were conducted by mixing pure CO2 gas with varying concentration of each impurity and with the varying combination of them. Each time, the mixture was then fed (1 L/min) into the reactor containing 12 specimens for 120-600 h at 5°C (to simulate the sub-level pipeline transport). The resulted condensate was collected and analyzed by ionic chromatography and atomic absorption spectroscopy to determine the chemical composition. In this study, the “worst-case scenario” gas mixture, containing 2.5 % H2O, 1.8 % O2, 1000 ppm NO2, and 220 ppm SO2 as impurities, resulted in the condensate containing H2SO4 0.114 M and HNO3 0.0184 M (pH 2.13). This “original” condensate was then re-produced to carry out exposure tests and electrochemical characterization including corrosion potentials and impedance spectroscopy in CO2 saturated condition for 7-14 days at the same temperature. The corrosion rate was also measured by mass loss method. We can conclude that, at the initial stage, HNO3 plays the dominant role in Fe dissolution process, while H2SO4 is responsible for the pit initiation followed by pitting corrosion. Future studies will be focused on the combination effect from the impurities and the exposure test under the regularly changing condensate to mimic the real CO2 pipeline system. T2 - Eurocorr 2016 CY - Montpellier, France DA - 11.09.2016 KW - Carbon capture utilization KW - CO2 KW - Pipeline transport KW - Condensation KW - Corrosion PY - 2016 SP - paper 69810, 1 EP - 2 PB - EFC CY - Montpellier AN - OPUS4-37747 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Yevtushenko, Oleksandra T1 - Material challenge for CCS - crevice corrosion susceptibility of alloy 31 and duplex steel S32101 in CO2 saturated saline brine T2 - NACE 2013 CY - Orlando, FL, USA DA - 2013-03-17 PY - 2013 AN - OPUS4-27066 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Yevtushenko, Oleksandra T1 - Corrosion of pipeline steels due tot the condensation effects caused by SO2 and NO2 impurities in CO2 T2 - EUROCORR 2012 CY - Istanbul, Turkey DA - 2012-09-09 PY - 2012 AN - OPUS4-27064 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Yevtushenko, Oleksandra T1 - Corrosion stability of piping steels in a circulating supercritical impure CO2 environment T2 - NACE 2013 CY - Orlando, FL, USA DA - 2013-03-17 PY - 2013 AN - OPUS4-27065 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Yevtushenko, Oleksandra T1 - Corrosion resistance of piping steels in circulating supercritical impure CO2 environment due to moisture, SO2 and NO2 impurities T2 - EUROCORR 2013 CY - Estoril, Portugal DA - 2013-09-01 PY - 2013 AN - OPUS4-28968 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Yevtushenko, Oleksandra A1 - Bäßler, Ralph A1 - Carrillo Salgado, I. T1 - Material challenge for carbon capture and storage - Crevice corrosion susceptibility of super austenitic stainless steel UNS NO8031 (alloy 31) and duplex stainless steel S32101 in CO2 saturated saline brine N2 - Corrosion resistance of duplex stainless Steel UNS S32101 and super austenitic stainless Steel UNS NO8031 (alloy 31) was investigated in crevice conditions in a corrosive environment (saline brine, T = 60 °C, C02-flow rate 3-5 L/h, normal pressure) using electrochemical and metallographic techniques. Rectangular rubber was used to form a metal/non-metal-crevice configuration. Potentiodynamic measurements have been carried out in order to determine critical pitting and repassivation potentials. Potentiostatic measurements at different Potentials have been performed and the dependence of pit depth on the potential applied in crevice conditions was investigated. It was shown that the repassivation potential of duplex stainless Steel S32101 coincides with its corrosion potential. Strang pitting corrosion occurred after potentiodynamic measurements with pit depths up to 100 pm. Otherwise, stainless Steel UNS NO8031 shows about 0.5 V difference between the free corrosion potential and the repassivation potential and did not show any signs of pitting corrosion after polarization measurements. Slight rouging effects have been observed. By potentiostatic measurements on duplex stainless Steel S32101 potentials slightly more positive than the corrosion Potentials causing strong pitting corrosion, and pit depths up to 650 pm were measured. Super austenitic stainless Steel UNS NO8031 did not exhibit any signs of pitting corrosion even by applying potentials much more positive than the corrosion potential. T2 - NACE International Corrosion Conference 2013 CY - Orlando, FL, USA DA - 17.03.2013 KW - CO2 KW - Saturated saline brine KW - Crevice corrosion KW - Pitting corrosion KW - Electrochemical measurements PY - 2013 SN - 978-1-627-48145-8 SP - 1 EP - 8 (Paper 2427) PB - Curran CY - Red Hook, NY AN - OPUS4-28964 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -