Catalytic decomposition of propane over carbon black for CO2 free hydrogen production

  • Yong Hee Yun, Department of Chemical Engineering, Sungkyunkwan University, Korea
  • Seung Chul Lee, Department of Chemical Engineering, Sungkyunkwan University, Korea
  • Ki June Yoon, Department of Chemical Engineering, Sungkyunkwan University, Korea
  • Gui Young Han, Department of Chemical Engineering, Sungkyunkwan University, Korea

    • The objective of this study is production of hydrogen from propane decomposition. Catalytic decomposition using carbon black has been reported to produce hydrogen with reduced CO2 emissions. Propane decomposition exhibited stable C3H8 conversion in spite of carbon deposition on carbon black surface in a fluidized bed reactor. This paper discusses about the effect of experimental conditions such as reaction temperature(from 873 to 1073K), gas velocity(2-4Umf ; minimum fludizing velocity) and catalyst loading(100-200g) under atmospheric pressure. The surface morphology of carbon black was observed by FE-TEM. The catalytic activity of carbon black was maintained nearly stable, in spite of increasing size because of deposited carbon. The variation of specific surface area and the secondary particle size before and after the reaction were characterized.