The project is about the development of new knowledge regarding the transport of chemical retention aids and fines in flocculated pulp suspensions. Specifically, we have developed a method to study the diffusion of polyelectrolytes in model fiber flocs and to quantify the transport on the micrometre to millimetre scale.
This project focuses on developing a cellulose-assisted aqueous carbonation system for permanent and safe CO₂ utilization and storage. Conventional CO₂ absorbents, such as high-temperature molten salts, often require large energy input, while aqueous absorption systems involve complex mass transfer and multi-step chemical reactions. To achieve a energy and uptake-efficient strategy and create financial value, in
This project sets out to elucidate mass transport characteristics during delignification of wood chips as a means of understanding and controlling non-uniform delignification effects, associated to low efficiency and poor property control in the current pulping processes. To obtain information on local variations of delignification effect in a wood chip, the treated chips will be
Improved uniformity of the fibers liberated in the kraft pulp digester Läs mer »