组织压缩精炼.pdf

1、CONFIDENTIAL property of CTP Tissue World-April 8 10 2025Compression refining:a promising new approach to refiningApplication to bleached kraft pulps for tissue manufacturingBruno CarrCentre Technique du Papier(France)Tissue World 8-10 April 2025DsseldorfCONFIDENTIAL property of CTP Tissue World-Apr

2、il 8 10 2025Development of know-how(50%)Improvements to existing products/technologiesDevelopment of new products/technologiesWho are we?CTPs mission is to create value within the industryTransmission activities(50%)Project steering committees/transfer meetings,Specific R&D contracts,Consulting and

3、expertise,studies,training,Standardization.2CONFIDENTIAL property of CTP Tissue World-April 8 10 2025The role of refiningRefining has a key role in:Increasing strengthHelping to reduce use of strength additivesBoosting strength properties of recovered papersHelping to reduce grammagesAllowing inclus

4、ion of more fillersDrawbacks:Energy consumption,to be minimizedReduction of machine speed due to reduction of dewateringIncrease in consumption of other additives 3CONFIDENTIAL property of CTP Tissue World-April 8 10 2025The role of refiningFrom the beginning to nowRefining has made technological le

5、aps over the centuries to optimize its performanceBut there are still challenges to be faced!4CONFIDENTIAL property of CTP Tissue World-April 8 10 2025CTPs compression refiningNew concept to manage compression refining as a new pulp treatment in order to increase paper performance and process effici

6、encyby favouring compression forces and avoiding excessively high shearingIt is covered by a new patent following several years of research at CTP,the Technical Centre based in France dedicated to the pulp and paper industry5CONFIDENTIAL property of CTP Tissue World-April 8 10 2025The forces involve