Customer case:

Optimize process and increase energy efficiency with Valmet’s Lime Kiln Optimizer

Oct 26, 2023

Metsä Group's Äänekoski bioproduct mill, located in Central Finland. It produces 1.3 million tonnes of softwood and birch pulp annually. Valmet's Lime Kiln Optimizer has been implemented in 2022, resulting in significant process optimization and increased energy efficiency at the mill.

Optimize process and increase energy efficiency with Valmet’s lime kiln Optimizer at Metsä Fibre Äänekoski
We are able to operate gasifier and lime kiln with lower energy consumption. Residual carbonate levels are stable and standard deviation is lower. Performance agreement enables long range development of the APC.

Hannu Loiri, Production Engineer, Recovery Line, Metsä Fibre

Location   Metsä Fibre Äänekoski Mill, Finland
  • Fuel saving
  • Stable CaO quality
  • Stable gasifier and kiln operation
  • Less process variations
  • Energy consumption reduction
  • Accurate temperature information from camera for stable residual carbonate
  • Reduce NOx emissions even at high kiln load
Keywords Pulping and fiber, Finland, Automation