Essays about: "Pulp fibre"

Showing result 21 - 25 of 27 essays containing the words Pulp fibre.

  1. 21. Correlations between fibre properties and paper properties

    University essay from KTH/Träkemi och massateknologi

    Author : Anna Johansson; [2011]
    Keywords : Fibre properties; Paper properties; Softwood pulp; Crill; Refining; Fiberegenskaper; pappersegenskaper; barrvedsmassa; krill; malning;

    Abstract : The understanding of what properties the fibre should have in order to give the right end-product paper properties, along with the type of processing, is a subject for a lot of research and development. Today the ability to measure fibre properties on-line is widely used for pulps. READ MORE

  3. 22. Inverkan av årstid för förstagallring på avverkningsskador i contorta och tall

    University essay from SLU/Dept. of Forest Ecology and Management

    Author : Karin Nolén; [2009]
    Keywords : gallring; mekaniska skador; contorta; tall;

    Abstract : SCA har idag cirka 280 000 hektar beskogad med contortatall (Pinus contorta Dougl. ex Loud. var. latifolia Engelm). READ MORE

  4. 23. The effect of water chemistry and fibre-size distribution on dissolved air flotation efficiency

    University essay from Institutionen för fysik, kemi och biologi

    Author : Anna Sjölander; [2009]
    Keywords : Dissolved air flotation; DAF; micro flotation; removal efficiency; factorial design; thermomechanical pulp; white water;

    Abstract : The purpose of this diploma work was to investigate the problem of insufficient fibre recovery in the dissolved air flotation-cell at the new thermomechanical pulping-line at Braviken Paper Mill. An investigation of the effect of process parameters on the removal efficiency in the micro-flotation process was undertaken. READ MORE

  5. 24. High consistency refining of mechanical pulps during varying refining conditions : High consistency refiner conditions effect on pulp quality

    University essay from Institutionen för fysik, kemi och biologi; Institutionen för fysik, kemi och biologi

    Author : Dino Muhic; [2008]
    Keywords : Thermomechanical pulping; high consistency refining; segment wear; housing pressure; feed pressure; mechanical pulping;

    Abstract :   The correlation between pulp properties and operating conditions in high consistency (HC) refiners at Holmen Paper AB were studied. Two types of HC refiners were investigated: the Andritz RTS refiner at the Hallstavik Mill and the Sprout-Bauer Twin 60 refiner at the Braviken Mill. READ MORE

  6. 25. Förbränning av pellets framställda av defibrerad granråvara

    University essay from SLU/Dept. of Forest Resource Management

    Author : Gunnar Henriksson; [2008]
    Keywords : biobränsle; defibrering; pelletering; partikelstorlek;

    Abstract : Fuel pellets are in Sweden mainly produced from sawdust and cutter shavings. Before the pelletising process the raw material is dried to attain consistent moisture content and ground up in a hammer mill. In the densification process (pelletising) the ground material is forced through holes in a rotating die. READ MORE