Catalytic partial oxidation of methane to syngas in a fixed-bed reactor with an O 2-distributor: The axial temperature profile and species profile study

Abstract

Catalytic partial oxidation of methane (CPOM) to syngas has been investigated in a fixed-bed reactor with an O 2-distributor (FR-OD). The axial temperature profile and species profile along the Ni or Rh-based catalyst bed have been measured at different conditions. As the O 2 was distributed radially into the catalyst bed through several rows of holes arranged at the special zone of the OD, a microenvironment maintaining a low O 2/CH 4 ratio (0.10–0.22) was provided in the catalyst bed. The hotspot phenomena appeared at the entrance of the catalyst bed have been effectively controlled. A more uniform temperature profile along the catalyst bed has been given, which is beneficial to the stability of catalyst and the safety of reactor operation.