caa a22 4500 463227980 CHVBK 20180405153233.0 cr unu---uuuuu 170326e20071201xx s 000 0 eng 10.1007/s10853-007-2076-x doi (NATIONALLICENCE)springer-10.1007/s10853-007-2076-x Passivity breakdown of carbon steel in hot potassium carbonate solutions [Elektronische Daten] [S. Harjac, A. Atrens, C. Moss, V. Linton] This research studied passivity breakdown of carbon steel in conditions typical of hot potassium carbonate (HPC) acid gas processing plants. The pitting potential, evaluated from polarisation curves, indicated resistance to pitting increased with increasing equivalent carbonate concentration. The pitting potential was much more positive than the free corrosion potential for uninhibited concentrated carbonate solutions with pH values of 8.5 to 9.5. Therefore pitting is not an issue in these solutions. However, the carbon steel was susceptible to pitting corrosion in the dilute 1.0% bicarbonate solution of pH 8.0 for chloride concentrations in excess of 0.5 wt%. The critical chloride concentration was considerably above the maximum concentration of 0.1 wt% recorded in a typical HPC plant. Consequently chlorides should not usually be of concern to plant integrity. Springer Science+Business Media, LLC, 2007 Harjac S. Materials, School of Engineering, The University of Queensland, 4072, Brisbane, QLD, Australia aut Atrens A. Materials, School of Engineering, The University of Queensland, 4072, Brisbane, QLD, Australia aut Moss C. Santos Ltd, Santos House, 91 King William Street, 5000, Adelaide, South Australia aut Linton V. School of Mechanical Engineering, The University of Adelaide, 5005, Adelaide, South Australia aut Journal of Materials Science Springer US; http://www.springer-ny.com 42/24(2007-12-01), 9940-9946 0022-2461 42:24<9940 2007 42 10853 https://doi.org/10.1007/s10853-007-2076-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-007-2076-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Harjac S. Materials, School of Engineering, The University of Queensland, 4072, Brisbane, QLD, Australia aut NATIONALLICENCE 700 1- Atrens A. Materials, School of Engineering, The University of Queensland, 4072, Brisbane, QLD, Australia aut NATIONALLICENCE 700 1- Moss C. Santos Ltd, Santos House, 91 King William Street, 5000, Adelaide, South Australia aut NATIONALLICENCE 700 1- Linton V. School of Mechanical Engineering, The University of Adelaide, 5005, Adelaide, South Australia aut NATIONALLICENCE 773 0- Journal of Materials Science Springer US; http://www.springer-ny.com 42/24(2007-12-01), 9940-9946 0022-2461 42:24<9940 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer