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Influence of pulping conditions on the properties of anatolian blackpine Pinus nigra Arnold ssp pallassiana kraft pulps      
Yazarlar
Prof. Dr. Saim ATEŞ Prof. Dr. Saim ATEŞ
Kastamonu Üniversitesi, Türkiye
Hüseyin Kırcı
Türkiye
Özet
Anatolian Black Pine wood chips were pulped using kraft method in laboratory scale batch digester. A series of experimental kraft pulping was carried out according to Central Composite Design (CCD) to investigate the pulping process and to study the effect of its variables (active alkali rate, sulphidity rate and Vroom's H-factor combining temperature and time) on pulp quality and yield. Second order polynomial regression equations using three independent process variables, were found to be approprite for describing kraft pulping of Anatolian Black Pine wood fibers. The derived equations were able to predict the kappa number, viscosity, yield, holocellulose and α-cellulose content of the pulp with adjusted R2 values of 96.1%, 96.8%, 86.3%, 62.5%, 96.1% and 92.2% respectively. H-factor level and the active alkali charge are the most strongly influcing all the dependent variables. In order to obtain acceptable levels of the pulp properties, high sulphidity rate (45%), medium H-factor (1600) and medium alkali concentration (18%) can be used in kraft pulping of Anatolian Black Pine woods. © 2007 Taylor and Francis Group, LLC.
Anahtar Kelimeler
Anatolian Black Pine | Kraft pulping | Modelling | Pulp Properties
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı BIOTECHNOLOGY & BIOTECHNOLOGICAL EQUIPMENT
Dergi ISSN 1310-2818
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce
Basım Tarihi 02-2007
Cilt No 21
Sayı 1
Sayfalar 117 / 122
Doi Numarası 10.1080/13102818.2007.10817427