Solid Fuel Boilers Bubbling Fluidized Bed Combustion

SCS offers utility and industrial grade Bubbling Fluidized Bed (BFB) boilers capable of producing 35K PPH to 400K PPH of saturated or superheated steam. SCS can provide the full scope to deliver a turn-key power or cogeneration plant including engineering, design, fabrication, procurement, construction, balance of plant work and aftermarket services.





  • Reduced Fuel Costs – The inherent fuel flexibility of this combustion technology, in terms of moisture content and fuel characteristics, allows the user to opportunistically source fuel.
  • Low Capital Costs – SCS has the reputation for offering the highest quality equipment at the best possible value.
  • Lower Overall Emissions – The uncontrolled emissions due to NOx, SOx, CO, VOC’s and PM are inherently lower in a BFB system.
  • Higher Efficiencies – BFB technology offers a higher efficiency in the combustion process, due to lower unburned carbon loss in fuels, thereby reducing the overall amount of fuel used, and lowering long term fuel consumption.
  • Open Bottom Design – Reduces maintenance and operations cost as it allows for easier removal of entrained foreign material and allows for the bed material to have a longer life.

The SCS experts bring over 24 years of experience, unparalleled value and quality to the boiler marketplace.

When to Choose a BFB Combustion Solution

  • High moisture content Fuels and/or sludge with a low alkali content
  • Higher efficiences
  • Lower excess air required for combustion
  • Lower unburned carbon
  • Lower emissions with reduced backend equipment for NOx, SOx, CO, VOC’s and PM

Fuel Options in a BFB Boiler

A key benefit to the Bubbling Fluidized Bed combustion technology is the ability to burn more diverse and lower cost fuel blends with high moisture contents.

A sample of some of the available fuel sources is below.

  • Agricultural residue (bagasse, stover, rice hulls)
  • Bagasse
  • Bark
  • Biomass
  • Coal
  • Landfill gas
  • Natural gas
  • Oil
  • Paper mill sludge
  • Peat
  • Poultry litter
  • Process wastes (furniture manufacturing, construction & demolition)
  • Recycled paper facility sludge
  • Syrup from ethanol facilities with high alkali contents
  • Tire-derived fuels
  • Wood waste (forestry, pulp and paper)
  • And other fuels