Syngas methanation for substitute natural gas over Ni-Mg/Al2O3 catalyst in fixed and fluidized bed reactors

  • Liu J
  • Shen W
  • Cui D
 et al. 
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A comparative study was conducted for laboratory syngas methanation over a self-made Ni-Mg/Al2O3 catalyst to demonstrate the technical advantages of fluidized bed over fixed bed reactor. At different reaction temperatures, gas velocities and pressures, the CO conversion and selectivity to CH4 in fluidized bed were shown to be higher than in fixed bed, and much closer to the thermodynamic equilibriums. The spent catalysts from fluidized bed methanation had distinctively low and easy-oxidizing deposited carbon in comparison with that from fixed bed. The results were attributed to the bigger effective catalytic surface, better heat and mass transfer in fluidized bed reactor. ?? 2013 Elsevier B.V. All rights reserved.

Author-supplied keywords

  • Fixed bed
  • Fluidized bed
  • Methanation
  • Ni catalyst
  • SNG
  • Syngas

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  • Jiao Liu

  • Wenlong Shen

  • Dianmiao Cui

  • Jian Yu

  • Fabing Su

  • Guangwen Xu

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