Hydrogen Uptake of Steels at H2 Partial Pressures up to 100 bar

Activity: Talk or presentation Oral presentation

Participants

Date

11 Sep 2019

Anton Trautmann - Speaker

Gregor Karl Mori - contributor

Wolfgang Siegl - contributor

Mathias Truschner - contributor

Josefine Pfeiffer - contributor

Markus Oberndorfer - contributor

Stephan Bauer - contributor

Marianne Kapp - contributor

Andreas Keplinger - contributor

An ongoing research project is investigating microbiological methanation in an underground natural gas reservoir. Since H2 is involved in the process, hydrogen embrittlement of steel must inevitably be considered. Therefore, a routine for testing has been developed and a unique autoclave test bench was designed to simulate field conditions. The low-alloyed steels L80, P110 (according to API 5CT) and 42CrMo4 (UNS G41400) as well as the 2205 duplex stainless steel (UNS S31803) were investigated.
Constant load tests (CLTs) and immersion tests with subsequent hydrogen analyses were performed. The specimens were exposed to different partial pressures of H2 under both dry and wet conditions (with brine). Additionally, the influence of CO2 under wet conditions was covered.
Tests were performed at two different temperatures (25 °C and 80 °C) and lasted for 30 days. In general, the examined steel grades show a good resistance to hydrogen embrittlement, but significant differences in hydrogen uptake were measured.
11 Sep 2019

Event (Conference)

TitleEurocorr 2019
Period9/09/1913/09/19
LocationBarcelo Sevilla Renicamento
CitySevilla
CountrySpain
Degree of recognitionInternational event