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CELLULOSE CHEMISTRY AND TECHNOLOGY Cellulose Chem. Technol
The kappa number (K n) reduction of oil palm empty fruit bunch (EFB) soda-anthraquinone (AQ) pulp by oxygen delignification was limited to only 34% to avoid substantial cellulose degradation. Thus, a preliminary study of photo-pretreatment was performed to improve the bleaching selectivity, and its effect was compared with the AQ-aided H 2 O 2 reinforced O-stage (O p-stage). The results showed that both methods performed better selectivity than the ordinary O-stage. It was suggested that thefatcat:epotoactivdu7htilsudlkxf64