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Processus de reliquéfaction de l'hydrogène pour le traitement des gaz d'évaporation sur un transporteur d'hydrogène liquide à grande échelle.

Hydrogen re-liquefaction process for boil-off gas handling on a large-scale liquid hydrogen carrier.

Numéro : 132

Auteurs : KIM D., TRAEDAL S., BERSTAD D., NEKSA P., YUM K. K.

Résumé

With the recent focus on hydrogen, seaborne shipping is considered an option for the large-scale transport of liquid hydrogen (LH2). For efficient shipping, boil-off gas (BOG) from the cargo tanks needs to be optimally utilized. This work suggests a BOG handling system (BHS) producing fuel for an LH2 carrier and liquefying excess BOG in a hydrogen Claude cycle. The process offers a simple configuration that does not require a refrigerant makeup facility. The simulation results of the BHS also show relatively low specific power consumption (5.7 to 2.6 kWh/kgLH2) with a good utilisation of cold energy in BOG. The sensitivity analysis with the BOG to fuel (BtF) ratio shows that a higher BtF gives a simpler configuration and a smaller size liquefier, saving capital costs. However, the optimal capacity of the BHS needs to be determined based on the techno-economic performance of the entire system of the LH2 carrier. 

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Format PDF

Pages : 7 p.

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Hydrogen re-liquefaction process for boil-off gas handling on a large-scale liquid hydrogen carrier.
  • Identifiant de la fiche : 30031055
  • Langues : Anglais
  • Source : Proceedings of the 17th IIR International Conference on Cryogenics, Dresden, Germany, april 25-28 2023
  • Date d'édition : 25/04/2023
  • DOI : http://dx.doi.org/10.18462/iir.cryo.2023.0132

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