Recovery Boiler Rebuild

Valmet has upgraded a significant number of power and utility boilers worldwide, with excellent results. We have all the necessary know-how and resources to provide you with expert assistance and to manage complete projects, all in the shortest possible time frame.

Increased capacity

Capacity increases of up to 40% are common, and our rebuilds are typically planned and carried out in a very short time frame. Valmet has developed long-standing relationships with pulp mills all over the globe. We have upgraded more than 200 chemical recovery boilers, with excellent results.


As with other rebuilds, the environment often comes out a winner. For instance, low-odor conversions reduce emissions of malodorous gases, while other upgrades lower emissions of NOx. Increased production by 34% and decreased levels of NOx by 30% was the result of a rebuild carried out by Valmet.

The results of our recovery boiler rebuilds are:

  • Increased capacity
  • Improved environmental performance
  • Increased safety
  • Higher availability