Contact person
Mats Westin
Forsknings- och utvecklingsingenjör
Contact Mats
Studies of Wood and Wood Handling
Wood is one of the most crucial factors in ensuring high-quality and efficient pulp production. The control of the wood material used in pulp mills is of paramount importance to maintain the quality and efficiency of the production process.
Purpose
At RISE, we conduct comprehensive studies on various types of wood to assess their suitability for pulp production. Our investigations focus on key areas, including the economic value of fiber materials, which involves analysing the wood's composition and quality in relation to production costs and the profitability of the resulting pulp.
We also evaluate the processability of wood, examining its chipping characteristics, ease of grinding, and impact on production efficiency and product quality. Additionally, we assess the properties of the resulting pulp and paper, ensuring they meet desired criteria such as strength and brightness.
Our batch-fed chipper produces high-quality, well-defined chips, allowing precise control over their dimensions. Before use in laboratory tests, the chips undergo thorough analysis to determine their physical and chemical properties, ensuring reliability and consistency in results.
By utilising rigorously analysed mill chips, we can effectively understand how chip parameters affect production and product quality. This capability is essential for our research and development efforts in the pulp and paper industry, enabling us to offer tailored solutions and advice to our clients.
Examples of Studies
Wood and wood storage
Barking
Chipping
Chip storage
Chip screening
Lignin
Hemicellulose
Peeling
Alkaline hydrolysis
Real-time chip impregnation
Continuous cooking
Batch cooking
Hazardous malodorous pollutants
Washing
Screening
Kappa number
Viscosity
pH
ISO brightness
Cooking liquor
Extractives
Delivery
RISE offers a report that includes data in Excel format, relevant images, and diagrams. It is compiled using standard methods and includes an assessment of measurement uncertainty to ensure result reliability. All significant parameters are included for a comprehensive overview, along with detailed comments for further insight.
Standard Report (Quotation):
RISE provides a clear report with concise sections, diagrams, and tables, allowing customers and stakeholders to quickly understand the results without extensive reading.
In-depth Report (Quotation):
RISE can create a more detailed scientific report based on customer-provided results and background information. This may include in-depth data analysis, discussions on methodology and results, and a thorough assessment of relevant factors. Leveraging the latest research and expertise, RISE offers a comprehensive understanding of the results and their implications.
More information
Wood costs represent the largest expense for pulp mills, making it crucial to minimise wood losses during debarking. If debarking is done too quickly, it can lead to a higher bark content in the chips when they reach the digester, so balancing economy and quality is essential.
Rinsing studies are an effective tool for this, where expertise and proximity to the mill are key. By optimising the rinsing process, significant savings can be achieved; for instance, a facility with a wood cost of one billion kronor could save ten million kronor by reducing wood losses by just one percent.
Regular management of timber from various sources or sizes can both lower costs and provide a more consistent quality of pulp through a more uniform blend of wood for the debarking drum.