Porous Burner


The combustion concept of a porous burner is based on the reactions of a combustible gas / air mixture in the open volume of a porous body (foam ceramic). A premixed fuel gas / air mixture passes through a flame trap before entering the combustion zone. The porous burner technology is therefore fundamentally different from other combustion technologies that are based on a flame stabilized in free space.

The hot exhaust gas convectively transfers heat to a porous solid, which in turn contributes to an intensive heat exchange within the combustion zone through thermal conduction and thermal radiation. The combustion zone reaches temperatures of up to 1350 ° C during operation and gives off a large part of the converted heat to the environment in the form of infrared radiation. The maximum radiation intensity of the pore burner depends on the surface temperature and lies in the wavelength range between 1.8 - m - 2.7 µm.

The good heat transfer properties of the pore structure avoid hot spots within the matrix and can ultimately be measured in a homogeneous temperature profile. Due to the good heat transfer properties, the output can be varied over a wide range. In order to ensure stable combustion at all times, the burner consists of at least 2 different ceramic zones

Main Features

  • Low emissions
  • High combustion stability
  • Fuel gases: natural gas, LNG, biogas, lean gas
  • Power modulation range up to 1:20
  • High power density up to 2 MW / m²
  • Radiation efficiency up to 47%
  • Surface temperatures up to 1400 ° C
  • Adjustable surface temperature
  • Adjustable radiant power
  • Low exhaust gas speeds
  • Very high power density and therefore compact design (smaller required space and lower heat losses)
  • Short start-up times to stationary operation, low start-up emissions.

Pore burner technology is patented by Promeos (www.promeos.com).