Catalytic Combustion of Ventilation Air Methane in a Reverse-Flow Reactor(PDF)

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• Date:2025-04-30
• Title of Paper:Catalytic Combustion of Ventilation Air Methane in a Reverse-Flow Reactor(PDF)
• Journal:Energy Fuels
• Summary:This paper describes an experimental study on the catalytic combustion of ventilation air methane in a
  vertical reactor. The mixture of natural gas and compressed air was used in the experiments, and the
  combustion products were analyzed by the Fourier transform infrared (FTIR) gas analyzer. The effects of
  the initial temperature, cycle time, feed gas concentration, and space velocity were studied. The
  experimental results show that the reactor could run under a wide range of operating conditions with
  self-sustaining operation and high methane conversion. Besides, it could even run with a feed gas
  concentration as low as 0.13 vol % without generation of CO and NOx, which has not been achieved in
  previous studies. The optimization of operating parameter combination increases the stability and
  efficiency of combustion. Different from the previous studies, the present research shows that the
  temperature profile of the cyclic steady state is not affected by the initial temperature. In addition, the
  methane conversion and reaction zone change during the process of the reaction. Thus, there is a limitation
  about the employment of a gas chromatograph (GC) to measure the methane concentration. Moreover,
  the presence of natural convection makes the temperature profiles of the cycle steady state asymmetrical.
• Co-author:Yikun Wang,Chengbo Man, and Defu Che
• Volume:24
• Page Number:4841-4848
• Translation or Not:No
• Date of Publication:2010-07-06