- Complete pulp mills
- Chemical pulping
- Wood handling
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Cooking and fiber line
- Cooking
- Screening
- Washing
- Oxygen delignification
- Bleaching
- Services for cooking and fiberline
- Pulp drying
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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
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Mechanical pulping
- Chip washing
- Chip treatment
- Refining and grinding
- Steam separation
- Washing
- Bleaching
- Screening and cleaning
- Services for Mechanical pulping
- Recycled fiber
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Automation for pulp
- Analyzers and measurements
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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
- Mill information management
- Process controls
- Quality management solutions
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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
- Boiler Diagnostics Systems
- Services for pulp
- Fiber Technology Center
- Pulp
- Other value-adding processes
- Lignin extraction
- Uses of lignin
Uses of lignin
Lignin is the natural glue that holds wood fibers together. It is renewable and abundant and some of it is already being sold by pulp mills. Lignin can be used in a wide range of applications, ranging from fuels to advanced chemicals and materials.
BioChoice® lignin by Domtar
Domtar, North American producer of paper, pulp and paper-based products, markets their BioChoice lignin as a biobased alternative to petroleum products, and lists a wide range of uses for lignin.
Domtar has recently also taken another step forward in commercializing lignin-based applications by investing in Prisma Renewable Composites, which is developing advanced materials from lignin and other natural resources.
Video: BioChoice Lignin from Domtar.
Lineo™ by Stora Enso
Lineo™ by Stora Enso is a high purity kraft lignin with great dispersibility and reactivity in chemical formulations. It is a product family of different grades, known as Lineo™ Prime and Lineo™ Classic, both of which are available as a free-flowing brown powder or in humid blocks of brown powder. For more information, see Stora Enso’s web page on Lineo™.
Video: Lineo™ by Stora Enso – kraft lignin.
Lower CO2 emissions - using lignin as fuel
Stora Enso reports that up to 70 % of the natural gas for the lime kilns in the Sunila mill could be replaced with lignin. Emissions of fossil CO2 was reduced by 27 000 tonnes per year.
Lignin can also be used as fuel in power boilers. The LignoBoost demonstration plant in Bäckhammar, Sweden, has participated in long-term trials (2007-2008) to replace coal at the Fortum combined cycle heat and power plant in Stockholm.
Using lignin as fuel might currently be the quickest way a pulp mill can start getting value from the extracted lignin. A mill with a yearly production of 400 000 tons of pulp can, according to estimations, save as much as 20 000 m3 (5.2 million gallons) of fuel oil per year.