ANTHRAQUINONE-AIDED HYDROGEN PEROXIDE REINFORCED OXYGEN DELIGNIFICATION OF OIL PALM (Elaeis guineensis) EFB PULP: A TWO-LEVEL FACTORIAL DESIGN

作者：Ng Soo Huey^*; Ghazali Arniza; Leh Cheu Peng

来源：Cellulose Chemistry and Technology, 2011, 45(1-2): 77-87.

• pe roxide reinfor ced ox ygen de lignification
• anthr aquinone
• factorial desi gns
• oil pa lm EFB
• delignification
• pulp viscosity

The st udy in vestigates the effec t of a nthraquinone tow ards h ydrogen per oxide reinforced ox ygen delignification on o il pa lm ( Elaeis gui neensis) empty fruit bu nch sod a-AQ pulp. The ind ividual and interaction effects of H(2)O(2) and an thraquinone and three other process variables the reaction temperature, time and alkaline charge were statistically examined by a two-level half factorial experimental design. The factorial models built for four responses kappa number, pulp viscosity, brightness and selectivity showed that H(2)O(2) had the greatest effect on all responses. Moreover, the re sponse surface of the fa ctorial mode Is show ed that t he add ition of a low a mount o f anthraquinone (0.02% on the ove n-dry w eight of pulp) in t he 0 p-stage, eve n w ithout improving kappa number reduction, significantly countered impairment to pulp viscosity by a relatively higher level of H(2)O(2) (2.0% on the oven-dry weight of pulp). Besides, a sufficient alkali charge was necessary for H(2)O(2) reinforced oxygen delignification and uncontrollable viscosity drop.

• 出版日期2011-2