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Use of Dry Wood Chips for ermomechanical Pulping


April 1, 2010
By Pulp & Paper Canada

Utilisation des copeaux de bois schs pour la mise en pte thermomcanique

Utilisation des copeaux de bois schs pour la mise en pte thermomcanique

Abstract: The consequences of using dry chips for producing TMP from black spruce and balsam fir have been explored in pilot scale. The results confirm that chip solids content up to about 77% in itself should not be detrimental to the properties of TMP. At around 90% solids, however, the pulp quality suffered. It was possible to rewet the over-dry chips and to recover the pulp properties to a large degree. The residual negative effect was around 2 Nm/g tensile index at CSF = 100 mL.

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Paper presented at the International Mechanical Pulping Conference in Sundsvall, Sweden, June 1-4, 2009.

Keywords: DRY CHIPS, TMP, BLACK SPRUCE, BALSAM FIR, PILOT TRIALS, REWETTING, HANDSHEET STRENGTH

Full manuscript available at www.paptac.ca.


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