| About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Advances in Materials and Systems for a Hydrogen Economy
|
| Presentation Title |
Assessment of Hydrogen Embrittlement of Natural Gas Pipeline Steels |
| Author(s) |
Irina Pushkareva, Taylor Martino, Nick Senior |
| On-Site Speaker (Planned) |
Irina Pushkareva |
| Abstract Scope |
Molecular Hydrogen is widely proposed as an important energy carrier in the future sustainable energy society. This increased use of hydrogen requires an extensive distribution system. For this reason, transport of molecular hydrogen and natural gas mixtures via existing and refurbished gas pipelines is currently being explored.
However, there exists material durability concerns over pipeline storage and distribution of hydrogen. The main materials of natural gas transmission pipelines are carbon steels which are susceptible to hydrogen embrittlement. Thus, hydrogen embrittlement can cause irreparable damage and serious consequences to natural gas pipelines which are long-lived and hard to replace infrastructures.
In this work, hydrogen embrittlement is studied in model pipeline steels (X42 and X70) in order to predict material durability. Susceptibility of pipeline steels to hydrogen embrittlement is reported for the hydrogen concentrations in the range of 2-30 vol.% and total pressures of 5 to 15 MPa. |