Background: Extensive experimental and theoretical attention has been given to catalytic combustion in the past decade. The potential of catalytic combustion and catalytically supported combustion in reducing emissions of pollutants, improved ignition, and enhanced stability of flames has been recognized.

Project: Oxidation of hydrogen, carbon monoxide, and light alkanes on noble metal foils and wires have been studied experimentally and numerically to achieve an improved understanding of the elementary physical and chemical processes in catalytic combustion systems. This work includes the investigation of catalytic ignition, extinction and the transition from heterogeneous to homogeneous combustion.

 

 

Flame in front of the catalytic foil after homogeneous ignition of a methane/air mixture and sketch of the experimental setup.


Collaboration: L. Ciossu, O. Inderwildi, J. Warnatz, H.-R. Volpp, J. Wolfrum (University of Heidelberg)

Further information:

  • F. Behrendt, O. Deutschmann, R. Schmidt, and J. Warnatz. Investigation of Ignition and Extinction of Hydrogen-Air and Methane-Air Mixtures over Platinum and Palladium., Chapter 4 in: Heterogeneous Hydrocarbon Oxidation, p. 48-57, ACS Symposium Series, 1996.
  • O. Deutschmann, R. Schmidt, and F. Behrendt. Interaction of Transport and Chemical Kinetics in Catalytic Combustion of H2/O2 Mixtures on Pt. Proc. of the 8th International Symposium on Transport Phenomena in Combustion, p. 166-175, Taylor and Francis Publ., 1996.

  • O. Deutschmann, F. Behrendt, and J. Warnatz. Modelling and Simulation of Heterogeneous Oxidation of Methane on a Platinum Foil. Catalysis Today 21 (1994), 461-470.