Mass and heat transfer at a helical coil imbedded in a fixed bed of cylinders with upward cocurrent gas-liquid flow

Rates of mass and heat transfer (by analogy) at the surface of a helical coil imbedded in a fixed bed of inert cylindrical packing were measured under upward two-phase (gas-liquid) flow by the electrochemical technique. The effects of geometrical and hydrodynamic parameters were considered. The performance of cylindrical packing was compared with that of Raschig rings and spheres. The analogy between heat and mass transfer was discussed and the importance of the present study for the design and operation of heterogeneous reactors that need rapid cooling in case of highly exothermic reactions was highlighted.

Automated summary

This study measured the rates of mass and heat transfer on the surface of a helical coil embedded in a fixed bed of inert cylindrical packing under upward two-phase flow. The effects of geometrical and hydrodynamic parameters were taken into consideration, and the performance of cylindrical packing was compared with that of Raschig rings and spheres. The analogy between heat and mass transfer was discussed, highlighting the importance of the present study for the design and operation of heterogeneous reactors that require rapid cooling for highly exothermic reactions.