Optimization of the impregnation circulation alkalinity at Metsä Board Kaskinen
Previously, a customized Valmet Cooking Liquor Measurement was installed to the impregnation stage of the chemi-mechanical pulping process at Metsä Board's Kaskinen mill in Finland. Now the customer targets to improve the process control and stabilize the alkalinity, resulting in more stable pulp quality, while optimizing the impregnation chemical charge.
|Customer challenge||Alkalinity levels in the wood chips impregnation circulation stage are monitored with Valmet Cooking Liquor Measurement. The customer now targeted to utilize the measurement data to improve the process control by reducing chemical consumption, costs, pulp quality variation, and environmental load.|
The impregnation circulation alkalinity control was implemented as an extension to the existing Valmet BCTMP Optimizer for more degrees of freedom to the quality control.
|Keywords||Chemi-Mechanical Pulping, Automation, Europe|