Catalytic radiant burner with energy recuperation


Background:Homogeneous and catalytic combustion are widely used in radiant burners to replace electric heaters for many industrial applications such as the curing and drying of paints, the drying of paper and pulp, and the transforming of plastics. While homogeneous combustors must operate near the stoichiometric ratio and have different efficiencies, catalytic burners can operate over a wide range of fuel/air ratios, at lower temperature, and at higher radiant efficiencies than homogeneous burners. Additionally, operation at relatively low temperature and without flames prevents the formation of nitrogen oxides and other pollutants.

Project: An efficient catalytic radiant burner design has been developed incorporating several advantageous design features such as short contact time and energy recuperation. Design and optimization are supported by detailed numerical simulation of the burner. This simulation becomes rather complex due to the interaction off all the heat transfer processes such as external and internal surface-to-surface thermal radiation, heat conduction in the gas-phase and in the solid buner walls, and chemical heat released, which additionally is combined with detailed reaction schemes.

Co-workers: J. Redenius (now McKinsey)

Collaboration: L.D. Schmidt (University of Minnesota)

Further information:

  • J.M. Redenius, L.D. Schmidt, O. Deutschmann. Millisecond Catalytic Wall Reactors: I. Radiant Burner AIChE J. 47(2001) 1177-1184.