Corrosion evaluation of MEA solutions by SEM-EDS, ICP-MS and XRD

Fytianos G., Ucar Ş., Grimstvedt A., Svendsen H. F., Knuutila H.

8th Trondheim Conference on CO2 Capture, Transport and Storage (TCCS), Trondheim, Norway, 16 - 18 June 2015, vol.86, pp.197-204, (Full Text) identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 86
  • Doi Number: 10.1016/j.egypro.2016.01.020
  • City: Trondheim
  • Country: Norway
  • Page Numbers: pp.197-204
  • Keywords: corrosion, MEA degradation, SEM, ICP-MS, DEGRADATION
  • Middle East Technical University Affiliated: No

Abstract

The target of this work is to evaluate three analytical techniques, ICP-MS, SEM-EDS and XRD, which can be applied in corrosion monitoring of ethanolamine based post-combustion CO2 capture plants. The work is based on analyses of the solvent and 316 SS cylinders used in thermal degradation experiments. ICP-MS is used for the determination of total Fe, Cr and Ni of the solutions as an indication of corrosivity. Additionally, the cylinder surface was examined with SEM-EDS and XRD was used for the identification of corrosion products. Finally, a discussion is given on the various techniques, their limitations and advantages. (C) 2016 The Authors. Published by Elsevier Ltd.