| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Surface Engineering II
|
| Presentation Title |
Mitigation of Asphaltene Deposition on Pipeline Alloy Steel Using Low-temperature Pack Aluminization |
| Author(s) |
Soheil Daryadel, Pralav Shetty, Velu Subramani, Paul V. Braun, Jessica A. Krogstad |
| On-Site Speaker (Planned) |
Soheil Daryadel |
| Abstract Scope |
Carbonaceous deposition is an undesirable phenomenon in the petroleum refineries, which causes significant structural degradation and production downtime. Recently, different methods have been proposed to remove or prevent the deposition. However, they are often expensive and require constant intervention. This work focuses on an innovative industrial-scale surface engineering technique to inhibit asphaltene deposition on pipeline alloy steels. Low-temperature pack aluminization is used on steel substrates to form an aluminide intermetallic layer to bias the native oxide to a protective alumina chemistry. High-temperature fouling experiment with a model sulfur containing asphaltene was conducted on bare and aluminized steel surfaces. Alloys with modified surface chemistry demonstrated significant less mass gain during the fouling test. Results show that the continuous passivating oxide scale acts as a protective barrier against undesirable environment and inhibits the asphaltene deposition. The proposed technique can yield important enhancement in the performance of pipeline steels, particularly in downstream applications |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |