Prospective well-to-wake emission assessment of hydrogen fuel pathways: A case study of Duqm as a future bunkering hub

Zincir B. A., Zincir B.

10th International Hydrogen Technologies Congress (IHTEC-2026), İstanbul, Türkiye, 10 - 13 Mayıs 2026, ss.1-4, (Tam Metin Bildiri)

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Basıldığı Şehir: İstanbul
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.1-4
  • Galatasaray Üniversitesi Adresli: Evet

Özet

Maritime decarbonization efforts increasingly require the consideration of well-to-wake (WtW) greenhouse gas emissions under emerging regulatory frameworks such as the International Maritime Organization’s Greenhouse Gas Fuel Intensity (GFI) regulation. In this context, hydrogen has attracted attention as a potential low-carbon marine fuel; however, its environmental performance strongly depends on production pathways and supply chain characteristics. This study evaluates green, blue, and pale blue hydrogen pathways using a location-specific WtW assessment, with the Port of Duqm (Oman) considered as a prospective hydrogen bunkering hub. Well-to-tank emissions are calculated using the GREET 2025 model, while tank-to-wake emissions are derived from the IMO LCA Guidelines. The results indicate that hydrogen production pathways have a substantially greater influence on WtW emissions than transport distance. Green and pale blue hydrogen comply with GFI targets up to 2035, whereas blue hydrogen meets compliance only until 2031, highlighting its role as a transitional option. The findings underline the importance of location-specific assessments when evaluating hydrogen fuels under future maritime emission regulations.