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Valmet

A new XRF analysis develops high yield pulp with even sulfonate distribution at fiber level for improved renewable packaging

This project addresses the main challenges of using environmentally friendly, renewable packaging materials due to the widespread use of plastic in the packaging industry. This interdisciplinary project aims to address the uneven distribution of fiber sulfonation and softening in wood chips, which is currently poorly understood at a micro-level. After impregnation, the distribution of sulfonation […]

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NeoPulp – New perspective to the development of pulp fibre properties

Heterogeneity is one of the fundamental scientific and technological challenges of all bio-based materials. The research area of NeoPulp is pulping and papermaking processes. We plan to study the heterogeneity between fibres that affects both process performance and the properties of current and new fibre-based materials. This is a largely unexplored research area where the

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Improved uniformity of the fibers liberated in the kraft pulp digester 

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

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Energy efficiency and modelling of vacuum dewatering in modern tissue machines

The project is a research coproduction between the research environment Pro2BE at Karlstad University, Valmet and Albany International about energy efficiency of tissue production. The project is aimed at acquiring deeper knowledge about tissue vacuum dewatering and at modelling vacuum dewatering during tissue production, both with a conventional tissue manufacturing method (DCT) and with Through

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Preparation and use of lignocellulose nanomaterials in energy storage devices

Cellulose nanomaterials (CNs) obtained from fully-bleached (lignin-free) chemical fibers, such as cellulose nanoparticles (CNPs), cellulose nanofibers (CNFs), microfibrillated cellulose (MFC) have been a topic of extensive research during last decades since they constitute a biodegradable, renewable and naturally abundant resource with an important scientific and technological potential. However, the bleaching process is an energy-intensive process

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Efficient Washing of Paper grade pulp in the kraft process

The project contributes to strengthened Swedish competitiveness through its expected research results and new fundamental knowledge for the development of an efficient pulp washing process and thus through an increased pace of innovation in the transition to a circular economy. After pulping the wood chips, the resulting pulp fibres and cooking liquor are separated in a

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