ENERGY FROM RECYCLED WOOD

Given the important development of wood energy, it is necessary to diversify the exploitable biomass resources. In this context, energy production from recycled wood has a major advantage given the large quantities available.


These wastes are grouped into three categories namely:

Valorisation énergétique des broyats de palettes par gazéification

Class A : pallets, boxes and crates untreated

Class A wood can be used with the same facilities as forest wood. No treatment is needed to meet exhaust gas emissions requirements.

Valorisation énergétique des déchets industriels banals (DIB) par gazéification

Class B : furniture, demolition wood …
(poorly adjuvanted wood)

Class B wood requires a specific treatment of exhaust gases and the installation does not follow the same administrative classification than a boiler using clean wood.

Valorisation énergétique des traverses de chemin de fer grâce au brûleur à gazéification COGEBIO®

Class C : railway sleepers, telephone poles,…

Class C wood must be incinerated in specific installations.

Wood waste have a high energy value. However, the potential presence of pollutants require the implementation of appropriate technologies to control emissions.

In this context, the main advantages of COGEBIO® process compared to direct combustion are:

  • Combustion efficiency increase
  • Reduction of dioxin emissions, VOC and unburnt hydrocarbons
  • Lower fine particle emissions
  • Concentration of metal pollutants in the ash
  • Proven efficiency technology, even with limited size installations

The preparation of recycled wood for energy production includes the following steps:

  • Sorting
  • Grinding
  • Metals removal
  • Screening

Thus prepared, recycled wood can participate fully in a circular economy and allows to operate COGEBIO® facilities with the same ROI as forest wood, saving this resource.