Optimisation of batch cooking pulp process reduced Kappa variations and resulted in energy and cost savings

Project title	Optimisation of batch cooking pulp process reduced Kappa variations and resulted in energy and cost savings
User company name	Billerud Karlsborg
Industry sector	Pulp and Paper
Production process type	Pulp process, cold blow batch cooking
Application area	Production Optimisation
Employees	2000+
Year the project started	2001
Supplier of service	Metso Automation
Tool(s)	metsoDNA,sequence controls, DNAcook-B batch cooking optimization, kajaaniALKALI analyzer
Vendor of the tool	Metso Automation
Pay-back time in months	N/A
Type of simulation used	Optimisation Algorithms Scheduling
Short description of the project	Digester plant automation needed to be modernised in Billerud Karlsborg pulp mill. In addition to more uniform pulp quality, energy and cost savings were looked for. The investment covered base automation featuring MetsoDNA, sequence controls, DNAcook-B batch cooking optimisation including controls for production rate and scheduling. More information http://www.metsoautomation.com/automation/home.nsf/FR?ReadForm&ATL=/Automation/communic.nsf/WebWID/WTB-021002-2256A-09EBC
Soft Benefits	The sequence control and scheduling gives extra capacity to digesters
Public quantitative benefits	The Kappa variation at Kappa 24 level was decreased by 45 %. Also 10 % savings in steam consumption was noticed.


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