Kinetics of AOX Formation During the First Chlorine Dioxide Bleaching Stage(D0)of Eucalyptus Kraft Pulp
In order to provide theoretical basis to reduce adsorbable organic halogens(AOX)formation,the kinetic models of the first chlorine dioxide bleaching stages(D0)was presented for elemental chlorine free(ECF)bleaching eucalyptus kraft pulp.The kinetic of D0 stage could be expressed as dW/dt=314.6e-20.53/RTH+0.21ClO20.41K0.98,where the reaction order for lignin,chlorine dioxide dosage and H+concentration were 0.98,0.41 and 0.21,respectively.The reaction activation energy was 20.53 KJ.mol-1.R2 was more than 0.9,it means that the model was proved to have the ability of high prognostic and feasible.In D0 stage,lignin was mainly removed and the reaction was fast,much AOX was formed at the beginning of bleaching.
Huixia Zhu Yangmei Chen Shuangquan Yao Haitao Wang Zhiwei Wang Yuping Li Chengrong Qin
Department of light Industrial and Food Engineering,Guangxi University,Nanning,53004,China;Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control,Nanning 530004,China
国际会议
第五届制浆造纸新技术国际研讨会(ISETPP)暨第三届国际造纸与环境学术大会(IPEC)
广州
英文
1-4
2016-11-07（万方平台首次上网日期，不代表论文的发表时间）