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Effects analysis of hydrogen production from methanol reforming of dual-U reactor for fuel-cell hybrid electric vehicles

Author

Listed:
  • Shi, Zhiwei
  • Tian, Xinghua
  • Peng, Qingguo
  • Huang, Zhixin
  • Teng, Peng
  • Yin, Ruixue

Abstract

With the advancement of energy transition and microfabrication technologies, the integration of microreactors and scaling-up techniques has provided significant support for the application of hydrogen production from methanol reforming in new energy vehicles. Therefore, a methanol autothermal reforming reactor with dual-U channels is proposed for the on-site hydrogen supply. Effects of methanol flow rate v, methanol to water ratio MWR and reaction temperature T on conversion ratio η and CO2 selectivity SCO2 are discussed. The results indicate that the combustion as a heat source is demonstrated to be feasible, and η increases and SCO2 decreases to varying degrees with increased v and T. Effects of MWR on hydrogen production performance exhibits an irregular trend, that is, a high MWR promotes the methanol decomposition and reduces the hydrogen production. It indicates that SR and DE are the main reactions, while the reaction rate of WGS is low and its impacts on working performance can be neglected. Furthermore, the reaction rate of SR reaction exhibits a higher sensitivity to the reactants compared with DE reaction. The optimal operating conditions are obtained by orthogonal analysis, that is, the highest η of 0.98528 and SCO2 of 0.72043 are obtained at η > 0.9 and SCO2>0.65.

Suggested Citation

  • Shi, Zhiwei & Tian, Xinghua & Peng, Qingguo & Huang, Zhixin & Teng, Peng & Yin, Ruixue, 2025. "Effects analysis of hydrogen production from methanol reforming of dual-U reactor for fuel-cell hybrid electric vehicles," Energy, Elsevier, vol. 318(C).
    • Handle: RePEc:eee:energy:v:318:y:2025:i:c:s0360544225003755
    DOI: 10.1016/j.energy.2025.134733
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