Comparison of mechanical pulps from two stage HC single disc and HC double disc - LC refining

Andersson, StefanMittuniversitetet,Institutionen för tillämpad naturvetenskap och design (-2013) (författare)

A mechanical pulping line consisting of high consistency (HC) double disc (DD) and low consistency (LC) refining was compared with a two stage single disc (SD) high consistency twin refiner line. The purpose of this study was to evaluate specific energy consumption and pulp properties. The two different process solutions were tested running similar Norway spruce wood supply. At similar tensile index and freeness, the DD-LC concept reduced the electric energy consumption by 400 kWh/adt compared with the traditional two-stage SD-SD system. Pulp characteristics of the two refining concepts were compared at tensile index 47 Nm/g. Fibre length was reduced more after DD-LC refining than after SD-SD refining. Specific light scattering coefficient was higher after DD-LC refining than SD-SD refining, while the development in second stage refining was better for SD-SD pulp than for DD-LC pulp. Shive level was significantly lower for DD-LC pulp than for SD-SD pulp.

Sandberg, ChristerHolmen Paper AB, Braviken Paper Mill, SE-60188 Norrkoping, Sweden (författare)
Engstrand, PerMittuniversitetet,Institutionen för tillämpad naturvetenskap och design (-2013)(Swepub:miun)pereng (författare)
MittuniversitetetInstitutionen för tillämpad naturvetenskap och design (-2013) (creator_code:org_t)

Av författaren/redakt...: Andersson, Stefa ...; Sandberg, Christ ...; Engstrand, Per

Om ämnet

TEKNIK OCH TEKNOLOGIER: TEKNIK OCH TEKNO ...; och Materialteknik; och Pappers massa oc ...

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.