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
Goal	Fuel saving Stable CaO quality Stable gasifier and kiln operation
Solution	Valmet Lime Kiln Optimizer with gasifier optimization Valmet Visible Thermal Imaging System with flame profile Performance agreement
Benefits	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

Valmet Lime Kiln Optimizer

Valmet Lime Kiln Optimizer for a better quality of reburned lime and decreased emissions.

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

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