Alternative fuels

With energy costs rising, reduced availability of typical fossil fuels and ever stricter regulations on environmental limits, alternative fuel co-processing has become a necessity for cement plant operators

Alternataive fuels solutions

Wood powder firing

Tailored to reduce operational costs and lower the carbon footprint

Wood powder firing

A bio-fuel solution

Rising fuel prices and a growing emphasis on reducing CO2 emissions from fossil fuels make bio-fuels and other alternative fuels an attractive solution for many cement and minerals.

One particularly promising bio-fuel solution is wood powder firing (WPF), which is well proven for lime reburning kilns and also directly applicable to any pyroprocessing plant that has a kiln or a calciner.

Key benefits

  • ATEX-approved solution 
  • Accurate particle size control with separator improves flame control 
  • Separator lowers specific power consumption and reduces maintenance of the system 
  • Accurate weighing and dosing with ATEX-approved feeder 
  • No storage of ground wood powder increases safety 
  • No (except small slip-stream) bag house filter improves safety and availability

Main system components

  • Hammer mill for grinding wood into powder 
  • Dynamic RTKM separator to control wood powder particle size distribution (PSD) 
  • Pfister feeder designed for very accurate dosing of low bulk-weight materials
  • Burner management system and FLSmidth Duoflex™ multifuel burner


Learn more!

Read the brochure for more in-depth information, including a flow chart that outlines the entire WPF
process; from wood pellets or chips to wood powder directly applicable to feed a kiln, calciner or hot gas generator.

Download the brochure
Wood powder firing