Dall Energy Biomass System

 

 

 

 

Summary of the Dall Energy Biomass System View

Dall Energy Biomass System

The Dall Energy biomass furnace combines updraft gasification and gas combustion. Hereby several advantages are achieved: The plant becomes simpler and cheaper, the emissions are reduced and the furnace can regulate between 10-100%. In the bottom part, the solid fuel is converted into a burnable gas and fine ash. In the top layer, the fuel is dried and pyrolyzed. The heat for the drying and pyrolysis process is a combination of convective heat from the gasification gases below and radiation heat from the gas combustion part above. The gas velocity in the bottom part is very low. Consequently, particles remain here and the dust emission of the furnace is very low. The Dall Energy biomass furnace has been implemented in 3 plants: 2 district heating plants in Denmark and 1 industrial plant in USA. The project owners has hereby been able to reduce cost of fuel and CO2, NOx, Dust emissions. See also Feature

in CNN International: https://www.youtube.com/watch?v=5QssvQqXAqA 

from the European Patent Office: http://www.epo.org/learning-events/european-inventor/finalists/2011/bentzen.html

an article describing the industrial project : http://www.e-pages.dk/dbdh/45/ (page 16-18).