TY - CONF A1 - Pfennig, Anja A1 - Kranzmann, Axel T1 - Impact of saline aquifer water on surface and shallow pit corrosion of martensitic stainless steels during exposure to CO2 environment (CCS) N2 - Pipe steels suitable for carbon capture and storage technology (CCS) require resistance against the corrosive environment of a potential CCS-site, e.g. heat, pressure, salinity of the aquifer, CO2-partial pressure. Samples of different mild and high alloyed stainless injection-pipe steels partially heat treated: 42CrMo4, X20Cr13, X46Cr13, X35CrMo4 as well as X5CrNiCuNb16-4 were kept at T=60 °C and ambient pressure as well as p=100 bar for 700 h - 8000 h in a CO2-saturated synthetic aquifer environment similar to possible geological on-shore CCS-sites in the northern German Basin. Main corrosion products are FeCO3 and FeOOH. Corrosion rates obtained at 100 bar are generally much lower than those measured at ambient pressure. Highest surface corrosion rates are 0.8 mm/year for 42CrMo4 and lowest 0.01 mm/year for X5CrNiCuNb16-4 in the vapour phase at ambient pressure. At 100 bar the highest corrosion rates are 0.01 mm/year for 42CrMo4, X20Cr13 (liquid phase), X46Cr13 and less than 0.01 mm/year for X35CrMo4 and X5CrNiCuNb16-4 after 8000 h of exposure with no regard to atmosphere. Martensitic microstructure offers good corrosion resistance. T2 - 8th International Conference on Future Environment and Energy (ICFEE 2018) CY - Phuket, Thailand DA - 10.01.2018 KW - CCS KW - CO2 corrosion KW - Pipeline PY - 2018 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:b43-465896 VL - 150 SP - 81 EP - 90 PB - IOP Publ. AN - OPUS4-46589 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Pfennig, Anja A1 - Kranzmann, Axel T1 - Local Corrosion of Martensitic Stainless Steels during Exposure to Saline Aquifer Water and CO2 Environment N2 - Carbon Capture and Storage (CCS) is well acknowledged to mitigate climate change. Therefore, pipe Steels suitable for CCS technology require resistance against the corrosive environment of a potential CCS-site, e.g. heat, pressure, salinity of the aquifer, CO2-partial pressure. Samples of different mild and high alloyed stainless injection-pipe Steels partially heat treated: 42CrMo4, X20Cr13, X46Cr13, X35CrMo4 as well as X5CrNiCuNb16-4 were kept at T=60 °C and ambient pressure as well as p=100 bar for 700 h - 8000 h in a CO2-saturated synthetic aquifer environment similar to possible geological on-shore CCS-sites in the northern German Basin. Main corrosion products analysed on pits are FeCO3 and FeOOH. The carbon content does not show significant influence on the pitting behaviour. Generally, higher chromium Content results in better corrosion resistance. Although X35CrMo17-1 and X5CrNiCuNb16-4 show low surface corrosion rates, their resistance against local corrosion in CCS environment is not significantly better compared to the much less costly Steels X20Cr13 and X46Cr13. KW - Corrosion KW - CCS KW - Carbon storage KW - Aquifer KW - Heat treatment PY - 2018 U6 - https://doi.org/10.18178/ijcea.2018.9.1.694 SN - 2010-0221 VL - 9 SP - 26 EP - 31 PB - International Association of Computer Science and Information Technology Press CY - Singapore AN - OPUS4-46627 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bettge, Dirk A1 - Kratzig, Andreas A1 - Peetz, Christoph A1 - Kranzmann, Axel T1 - Interaction of Oxidizing and Reductive Impurities in CO2 Streams with Transport Pipeline Steel N2 - A main goal of CLUSTER CCS project at BAM was to study the corrosion behaviour of pipeline steel with dense phase carbon dioxide containing impurities. Depending on the kind of impurities specific corrosion mechanisms and corrosion rates were determined. T2 - CO2 and H2 Technologies for the Energy Transition CY - BAM, Berlin, Germany DA - 28.11.2018 KW - Carbon capture KW - Carbon dioxide KW - Corrosion KW - CCS PY - 2018 AN - OPUS4-47016 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kratzig, Andreas A1 - Bettge, Dirk A1 - Peetz, Andreas A1 - Kranzmann, Axel T1 - Interaction of Reactive Components in CO2 Streams with Transport Pipeline Steel X70 N2 - In context of CLUSTER project, impacts of impurities (SO2, NO2, O2, CO, H2S, H2, N2, Ar and H2O) in CO2 streams captured from different sources in a regional cluster on transport, injection and storage were investigated. Corrosion studies of oxidizing, reductive or mixed atmospheres towards transport pipeline steel X70 were carried out applying high pressure (10 MPa) at low temperatures (278 K or 313 K). T2 - GHGT-14 Conference CY - Melbourne, Australia DA - 22.10.2018 KW - Carbon capture KW - CCS KW - Carbon dioxide KW - Corrosion PY - 2018 AN - OPUS4-47017 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -