The effect of AQ and NaBH4 on bio-kraft delignification (Ceriporiopsis subvermispora) of brutia pine chips
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Dosyalar
Tarih
2007
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Sci Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Brutia pine wood chips were pretreated with lignin degrading fungus (Ceriporiopsis subvermispora) and its effects on kraft pulping involved adding antraquinone (AQ) and NaBH4 into the white liquor were studied. The results showed that pulp rejects were lower for biokraft pulp and a significant reduction was observed when biokraft process was modified by NaBH4 compared to the control kraft method. Also, an increase on pulp yield and reduction on kappa number was noticed with biokraft pulp. Adding AQ and NaBH4 into biopulping led to positive results with regards to pulp yield and kappa number compared to biokraft pulp. The results indicated a major increase in pulp brightness when biokraft pulping was modified with 2% NaBH4. On the other hand, biopulps gave lower tear but higher burst index compared to the control kraft pulp. Tensile index of the biopulps were slightly lower; however, untreated kraft pulp was found to be easier to refine and when pulps were refined to 12,000 revs. in PFI mill, biokraft-AQ pulp showed a significant improvement on tensile index. (C) 2007 Elsevier Ltd. All rights reserved.
Açıklama
WOS: 000249110100009
Anahtar Kelimeler
antraquinone, biopulping, kappa number, kraft, pulp yield, sodium borohydrate
Kaynak
International Biodeterioration & Biodegradation
WoS Q Değeri
Q3
Scopus Q Değeri
Q1
Cilt
60
Sayı
2
