Dokument-ID Dokumenttyp Autoren/innen Persönliche Herausgeber/innen Haupttitel Abstract Auflage Verlagsort Verlag Herausgeber (Institution) Erscheinungsjahr Titel des übergeordneten Werkes Jahrgang/Band ISBN Veranstaltung Veranstaltungsort Beginndatum der Veranstaltung Enddatum der Veranstaltung Ausgabe/Heft Erste Seite Letzte Seite URN DOI Lizenz Datum der Freischaltung OPUS4-28964 Beitrag zu einem Tagungsband Yevtushenko, Oleksandra; Bäßler, Ralph; Carrillo Salgado, I. 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 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. Red Hook, NY Curran NACE International 2013 NACE International corrosion conference 2013 (Proceedings) 978-1-627-48145-8 NACE International Corrosion Conference 2013 Orlando, FL, USA 17.03.2013 21.03.2013 1 8 (Paper 2427) 2016-02-20 OPUS4-28965 Beitrag zu einem Tagungsband Yevtushenko, Oleksandra; Bäßler, Ralph; Carrillo-Salgado, I. Corrosion stability of piping steels in a circulating supercritical impure CO2 environment Within the project COORAL (German acronym for ''C02 purity for capture and storage") studies on pipeline steels exposed to circulating supercritical impure C02 have been carried out. For this purpose, a loop consisting of compressors, flow meter and two autoclaves was constructed. In order to simulate the real conditions in pipelines, impurities such as H20, CO, S02, N02 and 02 were added to the C02 stream before compression. Exposure experiments were carried out with Steel specimens placed in the autoclaves. Carbon Steel L360NB, pure iron X20Cr13, X46Cr13, X2CrMnNiN22-5-2 and alloy 31 have been exposed to circulating (flow rate 4 L/min) supercritical impure C02 for one week at 60 °C and 10 MPa Surface analysis and weight loss experiments in order to determine the corrosion products and the corrosion rates showed that the impurities cause corrosion problems. Slight general corrosion by L360NB and soft iron was observed. The initiation of pitting corrosion was observed at the surfaces of the materials X20Cr13, X46Cr13, X2CrMnNiN22-5-2. No visible signs of corrosion have been observed on alloy 31. Red Hook, NY Curran NACE International 2013 NACE International corrosion conference 2013 (Proceedings) 978-1-627-48145-8 NACE International Corrosion Conference 2013 Orlando, FL, USA 17.03.2013 21.03.2013 1 11 (Paper 2372) 2016-02-20 OPUS4-28966 Zeitschriftenartikel Yevtushenko, Oleksandra; Bettge, Dirk; Bohraus, Stefan; Bäßler, Ralph; Pfennig, A.; Kranzmann, Axel Corrosion behavior of steels for CO2 injection The process chain for Carbon Capture and Sequestration (CCS) includes tubing for injection of CO2 into saline aquifers. The compressed CO2 is likely to contain specific impurities; small concentrations of SO2 and NO2 in combination with oxygen and humidity are most harmful. In addition, CO2 saturated brine is supposed to rise in the well when the injection process is interrupted. The material selection has to ensure that neither CO2 nor brine or a combination of both will leak out of the inner tubing. In this comprehensive paper the investigated materials range from low-alloy steels and 13% Cr steels up to high-alloy materials. Electrochemical tests as well as long term exposure tests were performed in CO2, in brine and combination of both; pressure was up to 100 bar, temperature up to 60 °C. Whereas the CO2 stream itself can be handled using low alloy steels, combinations of CO2 and brine require more resistant materials to control the strong tendency to pitting corrosion. The corrosion behavior of heat-treated steels depends on factors such as microstructure and carbon content. For different sections of the injection tube, appropriate materials should be used to guarantee safety and consider cost effectiveness. Amsterdam Elsevier Institution of Chemical Engineers 2014 Process safety and environmental protection 92 1 108 118 10.1016/j.psep.2013.07.002 2016-02-20 OPUS4-28968 Vortrag Yevtushenko, Oleksandra Corrosion resistance of piping steels in circulating supercritical impure CO2 environment due to moisture, SO2 and NO2 impurities 2013 EUROCORR 2013 EUROCORR 2013 Estoril, Portugal 2013-09-01 2013-09-05 2016-02-20 OPUS4-27064 Vortrag Yevtushenko, Oleksandra Corrosion of pipeline steels due tot the condensation effects caused by SO2 and NO2 impurities in CO2 2012 EUROCORR 2012 EUROCORR 2012 Istanbul, Turkey 2012-09-09 2012-09-13 2016-02-19 OPUS4-27065 Vortrag Yevtushenko, Oleksandra Corrosion stability of piping steels in a circulating supercritical impure CO2 environment 2013 NACE 2013 NACE 2013 Orlando, FL, USA 2013-03-17 2013-03-21 2016-02-19 OPUS4-27066 Vortrag Yevtushenko, Oleksandra Material challenge for CCS - crevice corrosion susceptibility of alloy 31 and duplex steel S32101 in CO2 saturated saline brine 2013 NACE 2013 NACE 2013 Orlando, FL, USA 2013-03-17 2013-03-21 2016-02-19 OPUS4-26056 Zeitschriftenartikel Bäßler, Ralph; Yevtushenko, Oleksandra; Carrillo Salgado, I. Corrosion behavior of highly alloyed steels in artificial saline aquifer fluids containing carbon dioxide L'viv, Ukrainian national academy of science 2012 Physicochemical mechanics of materials 9 2 393 396 2016-02-19 OPUS4-27393 Beitrag zu einem Sammelband Yevtushenko, Oleksandra; Bäßler, Ralph Lexow, J.; Kishi, T.; Kitagawa, M.; Böllinghaus, T. Electrochemical studies on pitting corrosion on Cr13 steel exposed to CO2 and artificial brine with high chloride concentration Within the project COORAL (German acronym for 'CO2 purity for capture and storage') first studies on piping steels exposed to CO2 and artificial brine with high chloride concentration have been carried out. Corrosion behavior of martensitic Cr13 steel (1.4034) was investigated in a corrosive environment (artificial saline brine, T = 60 °C, CO2-flow rate 3 - 5 L/h, atmospheric pressure, exposure times from 1 h up to 14 days) using electrochemical and metallographic techniques. Different corrosion kinetics were observed as a function of exposure times and chloride concentration in the artificial brine. In CO2-saturated brine pitting corrosion was observed at free corrosion potential, whereas in the brine without addition of NaCl a stable passive layer built up. Predictions about corrosion mechanism are made and verified by means of surface analytical techniques. Berlin Heidelberg Springer 2012 Materials challenges and testing for supply of energy and resources 978-3-642-23347-0 45 53 2016-02-20 OPUS4-29686 Vortrag Yevtushenko, Oleksandra Elektrochemische Untersuchungen in Nitratsalzschmelzen 2013 GfKorr Arbeitskreissitzung Korrosion und Korrosionsschutz von Eisen und Stahl GfKorr Arbeitskreissitzung Korrosion und Korrosionsschutz von Eisen und Stahl Duisburg, Germany 2013-12-03 2013-12-03 2016-02-20 OPUS4-30036 Zeitschriftenartikel Yevtushenko, Oleksandra; Bettge, Dirk; Bäßler, Ralph; Bohraus, Stefan Corrosion of CO2 transport and injection pipeline steels due to the condensation effects caused by SO2 and NO2 impurities Condensates from the gas stream in simulated CO2 transport pipelines have been identified during the experiments in the laboratory. Because of their acidic origin the corrosion resistance of pipeline steels used for CCS (carbon capture and storage) technology might be limited. Over the last years it has become clear that the amount of water and acid building constituents in the CO2 stream has to be controlled very well. In this work, condensates formed in experiments using gaseous CO2 containing high amounts of water, NO2 and SO2 were analyzed, replicated, and used for extensive electrochemical experiments. These highly acidic condensates were enriched with CO2 and then applied to characteristic steels planned to use in the CCS transport chain. Even high alloy steels are susceptible to localized corrosion under these conditions. The results implicate that condensation of aggressive acid droplets has to be avoided or the locations where condensation takes place have to be controlled extensively. Weinheim Wiley-VCH Gesellschaft für Korrosionsschutz 2015 Materials and corrosion 66 4 334 341 10.1002/maco.201307368 2016-02-20 OPUS4-53460 Beitrag zu einem Tagungsband Bäßler, Ralph; Yevtushenko, Oleksandra; Le, Quynh Hoa; Bettge, Dirk Suitability of Metallic Materials in CC(U)S Applications Carbon Capture Utilization and Storage (CCUS) is a promising technology to reach the target for reduction of CO2 emissions, e.g. from fossil-fuel operated power plants or cement mills. Crucial points for a sustainable and future-proof CCUS procedure are reliability and cost efficiency of the whole process chain, including separation of CO2 from the source, compression of CO2, its subsequent transportation to the injection site and injection into geological formations, e.g. aquifers. Most components that are in contact with CO2-stream consist of steel. Depending on the operating conditions (e.g. temperature, pressure, and CO2-stream composition) specific suitable steels should be used. The compressed CO2-stream is likely to contain process specific impurities; small amounts of SO2 and NO2 in combination with oxygen and water are most harmful. One approach, as currently preferred by pipeline operators, is to clean the CO2-stream to such levels, acceptable for carbon steel, commonly used as pipeline material. Another consideration would be, to use more corrosion resistant alloys for CO2-streams with higher amounts of impurities. Due to the absence of certified benchmarks for upper limits, systematic experiments with impurities in the CO2-stream were carried out reflecting mainly transport and injection conditions. Within the COORAL project (German acronym for "CO2 purity for capture and storage") levels of impurities in the CO2-stream, being acceptable when using specific steels, were evaluated. Material exposure to dense or multiphase carbon dioxide (CO2) containing specific amounts of water vapor, oxygen (O2) sulfur dioxide (SO2), nitrogen dioxide (NO2), carbon monoxide (CO) can be a challenge to steels. In some situations, condensation of impurities and reaction products from the CO2 stream can occur. CO2 saturated brine is supposed to rise in the well when the injection process is interrupted. The material selection shall ensure that neither CO2 nor brine or a combination of both will leak out of the inner tubing. This COORAL-work was extended by a follow-up project, called CLUSTER. Here the additional influence of impurities was investigated when merging CO2 streams from different sources, combined within a "so-called" cluster. Results are summarized within the following table regarding suitability for different parts of the process chain. EFC 2021 Proceedings EUROCORR 2021 EUROCORR 2021 Online meeting 20.09.2021 24.09.2021 1 2 2021-10-06 OPUS4-36988 Beitrag zu einem Tagungsband Bäßler, Ralph; Yevtushenko, Oleksandra; Hattendorf, H. Suitability of high alloyed materials in molten salts at 600 °C Within the last years the use of feasible alternative energy sources has risen and is going to replace fossil resources more and more. Nevertheless, service conditions in solar facilities are due to the chemical composition of heat transmission media and temperatures, in many cases, extreme in terms of corrosion. Since the construction of power plants shall be economical with maximum life service, materials selection based on preliminary material qualification is essential to guarantee a secure and reliable operation of those facilities. The materials selection depends on the operation temperature of a power plant on the chemical composition of the transmission fluid used. In high corrosive environments Ni-based alloys are often used as an all-round solution for the construction of corrosion resistant parts, because of their good corrosion properties. However, there might be limits for their use regarding their corrosion behavior, with which this contribution deals. By means of electrochemical measurements and exposure tests the suitability of two high alloyed materials X8NiCrSi38 18 and NiCr25FeAlYB in molten nitrate salt (60 % NaNO3/40 % KNO3) was characterized at 600 °C. Houston, USA NACE International 2016 Proceedings NACE International Corrosion Conference NACE International Corrosion Conference Vancouver, BC, Canada 06.03.2016 10.03.2016 7363-1 7363-9 2016-07-29 OPUS4-30633 Zeitschriftenartikel Yevtushenko, Oleksandra; Bäßler, Ralph; Carrillo-Salgado, I. Material challenges for stainless steel in carbon capture and storage Corrosion resistance of duplex stainless steel (SS) (UNS S32101) and super austenitic SS (UNS NO8031) (Alloy 31) was investigated in crevice conditions in a saline brine. Rubber was used to form a metal/non-metal-crevice confguration. UNS NO8031 did not exhibit any signs of pitting corrosion even by applying potentials much more positive than the corrosion potential. Houston, Tex. National Association of Corrosion Engineers (NACE) 2014 Materials performance 53 5 2 5 2016-02-20 OPUS4-23057 Zeitschriftenartikel Yevtushenko, Oleksandra; Bäßler, Ralph; Pfennig, A. Corrosion behaviour of Cr13 steel in CO2 saturated brine with high chloride concentration The corrosion behaviour of martensitic stainless injection-pipeline steel X46Cr13 exposed to CO2 saturated artificial saline brine with high chloride concentration similar to onshore CCS-site at Ketzin, Germany has been investigated by means of electrochemical technique and microscopic observations at short exposure times (up to 24?h) and by mass loss and metallographic observations at exposure times up to 17520?h. Pitting corrosion kinetics has been characterised and the predictions about the corrosion mechanism are made. Weinheim Wiley-VCH Verl. Gesellschaft für Korrosionsschutz 2010 Materials and corrosion 61 9999 1 5 10.1002/maco.201005932 2016-02-19 OPUS4-23076 Posterpräsentation Yevtushenko, Oleksandra Corrosion studies on piping steels exposed to CO2 and artifical brines 2010 EUROCORR 2010 EUROCORR 2010 Moscow, Russia 2010-09-13 2010-09-17 2016-02-19 OPUS4-23077 Vortrag Yevtushenko, Oleksandra Electrochemical studies on pitting corrosion on Cr13 piping steel exposed to CO2 and artifical brine with high chloride concentration 2010 2. Young Materials Scientist Workshop des World Material Research Institue Forums (WMRIF), BAM 2. Young Materials Scientist Workshop des World Material Research Institue Forums (WMRIF), BAM Berlin, Germany 2010-08-30 2010-09-03 2016-02-19 OPUS4-24250 Beitrag zu einem Tagungsband Bettge, Dirk; Ruhl, Aki Sebastian; Bäßler, Ralph; Yevtushenko, Oleksandra; Kranzmann, Axel Corrosion aspects of materials selection for CO2 transport and storage The geological storage of carbon dioxide (Carbon Capture and Storage, CCS) in depleted gas reservoirs or in saline aquifers is a widely discussed issue. Carbon dioxide may induce corrosion on the piping steels during compression, transportation and injection. Therefore, selection of appropriate piping steels is a key factor in order to increase the safety and reliability of the CCS technology, and to keep the processes cost-effective. The here described subproject of the COORAL project (German acronym for "C02 purity for capture and storage") deals with the levels of impurities in the C02 stream that will be acceptable when using specific steels. Material exposure to carbon dioxide (C02) containing specific amounts of water vapor, oxygen (02) sulfur dioxide (S02), nitrogen dioxide (N02), carbon monoxide (CO) can be a challenge to steels. Within this subproject 13 different Steels are tested for suitability as materials used for compression, transportation and injection Units within the CCS chain. DECHEMA 2011 2nd ICEPE International conference on energy process engineering - Efficient carbon capture for coal power plants 2nd ICEPE International conference on energy process engineering - Efficient carbon capture for coal power plants Frankfurt/M., Germany 20.06.2011 22.06.2011 76 78 2016-02-19 OPUS4-37747 Beitrag zu einem Tagungsband Le, Quynh Hoa; Bäßler, Ralph; Yevtushenko, Oleksandra; Bettge, Dirk On the corrosion mechanism of CO2 transport pipeline steels caused by impurities: roles of each impure components and benchmarks 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. Montpellier EFC EFC 2016 Proceedings Eurocorr 2016 Eurocorr 2016 Montpellier, France 11.09.2016 15.09.2016 paper 69810, 1 2 2016-10-13 OPUS4-34748 Beitrag zu einem Tagungsband Bäßler, Ralph; Yevtushenko, Oleksandra; Hattendorf, H. Electrochemical characterization of high alloyed materials in molten salts for solar energy applications Within the last years the use of feasible alternative energy sources has risen and is going to replace fossil resources more and more. Nevertheless, service conditions in solar facilities are due to the chemical composition of heat transmission media and temperatures, in many cases, extreme in terms of corrosion. Since the construction of power plants shall be economical with maximum life service, materials selection based on preliminary material qualification is essential to guarantee a secure and reliable operation of those facilities. The materials selection depends on the operation temperature of a power plant on the chemical composition of the transmission fluid used. In high corrosive environments Ni-based alloys are often used as an all-round solution for the construction of corrosion resistant parts, because of their good corrosion properties. However, there might be limits for their use regarding their corrosion behavior, with which this contribution deals. Experiences from the electrochemical characterization of materials in aqueous solutions are transferred to molten salts, providing a good addition to common exposure tests at temperatures from 450 0C to 600 0C. By means of electrochemical measurements and exposure tests the suitability of high alloyed materials in molten nitrate salt (60 % NaNO3/40 % KNO3) can be characterized. The method was verified on different Ni-based alloys (UNS N08810, UNS N06600) and Titanium (UNS R50250). NACE International 2015 NACE International corrosion conference 2015 (Proceedings) NACE International Corrosion Conference 2015 Dallas, TX, USA 15.03.2015 19.03.2015 paper 5659, S. 1 9 2016-02-20