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The effect of process conditions on pulp quality development at low consistency refining of mechanical pulp - TMP
RISE., STFI-Packforsk.
RISE., STFI-Packforsk.ORCID-id: 0000-0003-3534-1107
2009 (engelsk)Inngår i: 2009 International Mechanical Pulping Conference : proceedings: IMPC 2009, 2009, s. 182-185Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

Low consistency refining (LC) as a second refining stage, after a HC-defibration is an energy-efficient process solution. This HC-LC concept has for some time been explored in pilot scale and shown promising results. However it is clear that in order to obtain an optimal development of pulp properties the LC-refining has to be optimized with regard to process conditions. In this study the effects of temperature, pH, and specific edge load in the LC-refining on the pulp quality were investigated. For this purpose a mobile LC refiner rig placed after a primary stage HC mill refiner in the Braviken Paper mill, Holmen Paper was used. The trials show that energy savings are possible with preserved properties in the production of mechanical pulp. High temperature, high pH and low specific edge load were indicated to be preferable for both the tensile index development and for preserving the fibre length of the pulp. An increased degree of refining developed as expected the tensile index but too high specific energy resulted in some fibre shortening.

sted, utgiver, år, opplag, sider
2009. s. 182-185
Emneord [en]
Defibration, Edge loads, Effects of temperature, Energy saving, Energy-efficient process, Fibre length, High pH, High temperature, Low consistency, Optimal development, Paper mill, Pilot scale, Process condition, Pulp properties, Pulp qualities, Specific energy
HSV kategori
Identifikatorer
URN: urn:nbn:se:ri:diva-29628Scopus ID: 2-s2.0-77951120117OAI: oai:DiVA.org:ri-29628DiVA, id: diva2:1105067
Konferanse
2009 International Mechanical Pulping Conference, IMPC 2009; Sundsvall; Sweden; 31 May 2009 through 4 June 2009
Merknad

cited By 6

Tilgjengelig fra: 2017-06-02 Laget: 2017-06-02 Sist oppdatert: 2020-12-01bibliografisk kontrollert

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RefereraExporteraLink to record
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