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Pulp technology

The pulp production plays a central role in the bioeconomy, the transition to a fossil-free society and circular processes. The main part of fiber line is the cooking, where wood is treated with chemicals in order to liberate the fibers from each other and for some applications subsequently bleached.

The pulp technology team at RISE supports research and development with respect to the industry’s changing needs and challenges as well as the stricter regulation and increased client demands. The focus is on developing sustainable and cost-effective process solutions in the entire value chain from various raw- and recycled materials to pulp for different purposes.

RISE works both to improve existing cooking processes, oxygen delignification, bleaching and to develop new pulping processes. Optimization of the processes for maximum utilization of raw materials; saving chemicals, energy, water and constantly reducing the environmental footprint is the core of the research and development work. RISE has solid knowledge and experience in chemical pulping (cooking and bleaching), access to modern equipment and qualified specialists, which facilitates testing of ideas, demonstration in lab and pilot scale and speeding up the implementation and trouble-shooting on industrial scale. We can provide the answers and the information you need within the following areas:

  • The suitability of wood species and other biomass for use in various paper and special cellulose grades
  • Woodyard, debarking and chipping
  • Pretreatment of wood chips
  • Cooking and bleaching conditions
  • New cooking and bleaching agents, including enzymes
  • Brightness and its stability
  • Pulp reactivity
  • Pulp and fiber properties
  • Environmental impact

 

We work with both long-term research to improve existing processes for cooking, oxygen delignification and bleaching as well as handling emergency process problems on the fiber line. Some examples of what RISE offers in the pulp technology area are:

  • Optimized cooking and bleaching strategies with respect to pulp quality and process economy
  • New sustainable pulp processes with reduced environmental impact
  • Tweak the process with respect to raw materials and/or end product
  • Fractionation of cellulose, hemicellulose and lignin from different raw materials according to the biorefinery needs
  • Integration of biorefinery processes in chemical pulp mills
  • Special cellulose for the production of e.g. textile and nanocellulose.

Ask us about chemical pulp – we have the answers for pulping and bleaching

Galya Simeonova

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Galya Simeonova

Forskare

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Lars Sundvall

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Lars Sundvall

Gruppchef Processteknik

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