Fractionation and Screening
Fractionation is a unit operation for separating a fibre stream into two or more flows (fractions) on the basis of fibre properties. Fractionation makes selective purification, treatment and utilisation of fractions possible, which can be useful where multiple or stratified products are at issue.
 
The fractionation expertise at Innventia extends to both screen- and hydrocyclone-based systems. We can assist our customers in assessing performance and optimising processes.
 
The fractionation system at the FEX pilot plant allows studies to be carried out at industrial scale. Fractionated pulp can be fed into the FEX paper machine to produce single- and multi-layered products under commercially relevant conditions.
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Anna Tubek-Lindblom

+46 8 676 7393

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The FEX fractionation system »

Projects

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Publications

Flow field and fibre fractionation studies in hydrocyclones
Bergström, J. (2006)
Doctoral dissertation, TRITA-FPT Report 2006:40, KTH, Stockholm.

Potential benefits by separate bleaching of pulp fractions enriched in earlywood and latewood fibres
Brännvall, E. et al. (2005)
International pulp bleaching conference, pp. 269-271, SPCI, Stockholm.

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