Optimization of a counter-flow microchannel reactor using hydrogen assisted catalytic combustion for steam reforming of methane

Seung Won Jeon, Won Jae Yoon, Min Woo Jeong, Yongchan Kim

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

The objective of this study is to optimize a microchannel reactor using hydrogen assisted catalytic combustion for steam reforming of methane. Hydrogen assisted catalytic combustion does not require preheating because the catalytic combustion of hydrogen occurs at room temperature. After start-up by hydrogen catalytic combustion, fuels of hydrogen and methane were changed to methane. The geometric configuration of the counter-flow reactor was optimized by the simulation model under steady state condition. The hydrogen flow rate in the counter-flow reactor was also optimized by transient simulations using the response surface methodology. As a result, the counter-flow reactor showed extremely short start-up time because of the optimized configuration and the optimized hydrogen flow rate. Hot spots were avoided because of the hydrogen shut-off after start-up. The operating characteristics of the counter-flow reactor were compared with those of the co-flow reactor.

Original languageEnglish
Pages (from-to)6470-6478
Number of pages9
JournalInternational Journal of Hydrogen Energy
Volume39
Issue number12
DOIs
Publication statusPublished - 2014 Apr 15

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Keywords

  • Catalytic combustion of hydrogen
  • Heat exchanger reactor
  • Hydrogen assisted combustion
  • Response surface methodology
  • Start-up
  • Steam reforming of methane

ASJC Scopus subject areas

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

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