New technology reduces pulping energy consumptionPre-treatment of wood chips by electron-beam irradiation enables energy savings in mechanical pulping. In tests with different wood species in TMP-refining the potential reduction in specific energy consumption varied between 25 and 40%.
Together with Prof. Grossmann’s group at Technical University of Dresden VTT has explored the potential of electron-beam irradiation of wood chips and of wood discs as a pre-treatment for mechanical pulping. In TMP-refining the specific energy consumption was reduced by 25% (spruce) or even by 40% (aspen). In atmospheric grinding the effect was clearly smaller, but still detectable (-7%).
The experiments and results have been published at Austrian Paper Conference and at the PTS Paper Symposium. With the promising results to date VTT is preparing a continuation project with industrial partners. Source: VTT
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