Autothermal reforming of methanol for on-board hydrogen production in marine vehicles

Tomy Hos, Gal Sror, Moti Herskowitz

Research output: Contribution to journalArticlepeer-review

Abstract

The current systems for air independent propulsion systems are based on hydrogen stored in a limited number of cylinders for the continuous operation of the fuel cells in marine vehicles. Hydrogen generation by on-board steam reforming of methanol could extend the air-independent period. This study presents an autothermal reactor for the coupled endothermic (methanol steam reforming) and exothermic (oxidation) reactions in a compact reactor. A commercial Cu-based catalyst (ReforMax® M) was used. The kinetics of both reactions were evaluated over a wide range of conditions. This catalyst was found to be very stable under moderate operating conditions (<270 °C and O2/CH3OH <0.03), obtained by injecting oxygen at four different points along the reformer. Based on the catalytic performance, an integrated process was developed by a simulation program. The system was designed to operate for a long time (>500h). The combined process provides operational advantages, high energy efficiency (84.2%) and hydrogen yield (75.2%).

Original languageEnglish
Pages (from-to)1121-1132
Number of pages12
JournalInternational Journal of Hydrogen Energy
Volume49
DOIs
StatePublished - 2 Jan 2024

Keywords

  • Autothermal reformer
  • Hydrogen production
  • Kinetics
  • Marine vehicle
  • Methanol steam reforming
  • Process modeling

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

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