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Kraft, BCTMP, and TMP dewatering behaviour along the axis of a screw press

Bioresources, 2020-02, Vol.15 (1), p.1282-1297 [Peer Reviewed Journal]

2020. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms available at https://bioresources.cnr.ncsu.edu/about-the-journal/editorial-policies ;ISSN: 1930-2126 ;EISSN: 1930-2126 ;DOI: 10.15376/biores.15.1.1282-1297

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  • Title:
    Kraft, BCTMP, and TMP dewatering behaviour along the axis of a screw press
  • Author: El idrissi, Bouchaib ; Loranger, Éric ; Lanouette, Robert ; Bousquet, Jean Pierre ; Martinez, Mark
  • Subjects: Biomass ; Bleaching ; Compression ; Compression zone ; Dewatering ; Drainage ; Filtrate ; Filtration ; Flow rates ; Flow velocity ; Kraft pulp ; Lignocellulose ; Pulp ; Pulp & paper industry ; Resource recovery ; Wood fibers
  • Is Part Of: Bioresources, 2020-02, Vol.15 (1), p.1282-1297
  • Description: The drainage- and dewatering-controlling mechanisms in a screw press were detailed in this work. Three pulps (kraft pulp, bleached chemi-thermomechanical pulp, and thermomechanical pulp) were studied to compare a wide range of wood fibre types. The dewatering was controlled by the screw press parameters and the pulps’ properties. Filtration was found to be the controlling mechanism in the first part of the screw press for the three pulps, and it was less important when the fines content was greater. In the compression zone, the degree of compression was affected by the pulp flexibility and the fibres’ tendency to entangle. Filtrate flow rate monitoring along the screw press could be a good indicator of where the transition from filtration to consolidation occurs. The pressure along the screw press did not change much in the filtration zone, and it notably increased near the discharge end. When the drainage was very high, the pulp feed increased, causing the pulp axial velocity in the end part to be greater than the screw’s linear advance.
  • Publisher: Raleigh: North Carolina State University
  • Language: English
  • Identifier: ISSN: 1930-2126
    EISSN: 1930-2126
    DOI: 10.15376/biores.15.1.1282-1297
  • Source: Geneva Foundation Free Medical Journals at publisher websites
    AUTh Library subscriptions: ProQuest Central
    Directory of Open Access Journals
    ROAD: Directory of Open Access Scholarly Resources
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