The prediction of pulp yield using selected fiber properties
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Dosyalar
Tarih
2005
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Walter De Gruyter Gmbh
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The present study is dealing with the question how the major yield-controlling components in pulp (i.e., hemicelluloses and lignin) alter the behavior and/or properties (e.g., dimensions, flexibility, sugar content) of the fibers. The hypothesis should be verified that certain fiber properties can be used as marker for yield information. Pine and maple wood were digested under specific conditions to produce unbleached pulps with two different lignin contents per method. Screened pulps were chemically analyzed using a new NMR technique for carbohydrates, and the fibers were fractionated using a modified Bauer McNett classification. Pulp yields were related to the pulping methods in the sequence: polysulfide > kraft > biokraft > soda. Carbohydrate analysis revealed that the glucose content (glucose method) was related to the pulping yield. Certain fiber properties (fiber width and coarseness measured directly from the screened pulps) also provided close correlations with the pulp yield. The arithmetic average fiber length and width of the R-14 Bauer McNett screen was a significant predictor of yield at the 95% confidence level, with a mean error of 0.43%.
Açıklama
Anahtar Kelimeler
Bauer McNett, Biokraft, Cell Wall Thickness, Coarseness, Fiber Basis weight, Fiber Length, Fiber Width, Kajaani, Kraft, Maple, Pine, Polysulfide, Pulping Yield, Soda
Kaynak
Holzforschung
WoS Q Değeri
Q1
Scopus Q Değeri
Q3
Cilt
59
Sayı
5
