- Complete pulp mills
- Chemical pulping
- Wood handling
-
Cooking and fiber line
- Cooking
- Screening
- Washing
- Oxygen delignification
- Bleaching
- Services for cooking and fiberline
- Pulp drying
-
Chemical recovery
- Evaporators
- Recovery boilers
- White liquor plant
- Process support and optimization
- Rebuilds and upgrades
- Heat and power production
- Services for chemical recovery
- Air emission control
- Other value-adding processes
- Dissolving pulping
-
Mechanical pulping
- Chip washing
- Chip treatment
- Refining and grinding
- Steam separation
- Washing
- Bleaching
- Screening and cleaning
- Services for Mechanical pulping
- Recycled fiber
-
Automation for pulp
- Analyzers and measurements
-
APC Advanced Process Controls
- Valmet WinGEMS
- Valmet Debarking Optimizer
- Valmet Batch Cooking Optimizer
- Valmet Continuous Cooking Optimizer
- Valmet Washing Line Optimizer
- Valmet Oxygen Stage Optimizer
- Valmet Bleaching Optimizer
- Valmet Evaporation Optimizer
- Valmet Recovery Boiler Optimizer
- Valmet Recovery Boiler Leak Detector
- Valmet Recovery Boiler Sootblowing Optimizer
- Valmet Causticizing Optimizer
- Valmet Lime Kiln Optimizer
- Valmet Recovery Line Management
-
AQC Advanced Quality Controls
- TMP Predictive Quality Controller
- TMP Specific Energy Optimizer
- Paper Machine Blend Controller
- Paper Brightness Optimizer
- Power Contract Optimization
- Paper Quality Software Sensors
- Paper Quality Real Time Optimizer
- Sensor Validation
- IMonitor Performance Monitor
- Ponderosa Pulp Quality Software Sensors
- IMAS Process Control Data Server
- Mill information management
- Distributed control systems
- Quality management
- Boiler Diagnostics Systems
- Services for pulp
- Fiber Technology Center
- Pulp
- Automation for pulp
- APC Advanced Process Controls
- Valmet Oxygen Stage Optimizer
Valmet Oxygen Stage Optimizer

Valmet Oxygen Stage Optimizer enhances the environmentally friendly Oxygen Delignification especially during disturbances, production rate changes, pulp grade changes, or wood species changes. This process provides a unique method for lignin removal without degrading the pulp strength. The main focus is put on the management of the Kappa number development throughout the process.
Enables higher pulp brightness at reduced cost in an environmentally friendly way
Features
Base calculations and controls to stabilize the process
- Chemical dosage (if not in base automation)
- Washing water
- Temperature
- Production rate
- Retention time calculations
Model based quality control
- Kappa reduction
Management of changes
- Production rate, pulp grade, and wood species
Management of disturbances
- Retention time estimator
- Delignification degree
- Channeling monitor
Benefits
- Lower and more even Kappa to the bleaching process
- More uniform pulp quality
- Less losses in pulp strength
- Chemical savings in the bleaching process
- Decrease in the environmental load
Related links
- Valmet WinGEMS
- Valmet Debarking Optimizer
- Valmet Batch Cooking Optimizer
- Valmet Continuous Cooking Optimizer
- Valmet Washing Line Optimizer
- Valmet Oxygen Stage Optimizer
- Valmet Bleaching Optimizer
- Valmet Evaporation Optimizer
- Valmet Recovery Boiler Optimizer
- Valmet Recovery Boiler Sootblowing Optimizer
- Valmet Causticizing Optimizer
- Valmet Lime Kiln Optimizer
- Valmet Recovery Line Management