硫酸盐蔗渣浆全无氯短序漂白生产工艺的研究  

Study on the Chlorine-free Short Sequence Bleaching Process of Kraft Bagasse Pulp

作　　者：王璐 刘明友 乐飞 李劲松[3] WANG Lu;LIU Mingyou;LE Fei;LI Jinsong(School of Light Industry and Engineering,South China University of Technology,Guangzhou,Guangdong Province,510640;Jiangsu Koner Ozone Co.,Ltd.,Yangzhong,Jiangsu Province,212212;Mudanjiang Hengfeng Paper Co.,Ltd.,Mudanjiang,Heilongjiang Province,157013)

机构地区：[1]华南理工大学轻工科学与工程学院,广东广州510640 [2]江苏康尔臭氧有限公司,江苏扬中212212 [3]牡丹江恒丰纸业股份有限公司,黑龙江牡丹江157013

出　　处：《中国造纸》2019年第7期8-13,共6页China Pulp & Paper

摘　　要：在尽可能模仿工厂实际生产条件下,采用酸处理-臭氧-过氧化氢(AZP)全无氯(TCF)短序清洁漂白生产流程对硫酸盐蔗渣浆漂白工艺参数进行研究。实验结果表明,硫酸盐蔗渣浆漂白最佳工艺条件为:Z段浆浓36%,pH值2.0,臭氧用量1.2%,臭氧浓度120 g/m3,反应时间30 min,室温下进行;P段浆浓10%,过氧化氢用量3.0%,反应时间120 min,反应温度90℃,NaOH用量0.8%。最终得到的漂白硫酸盐蔗渣浆白度85.6%、黏度559 mL/g以及卡伯值3.6。同时,与传统漂白工艺流程(OQP1P2、OP1ZP2)相比,采用AZP短序漂后废水污染负荷最低,漂后废水CODCr为760 mg/L、BOD5为90 mg/L以及色度为680 C.U.。With the conditions closely imitating the practice production of the mill,the parameters of sulfate bagasse pulp acid pretreatmentozone-hydrogen peroxide(AZP)short sequence total chlorine free(TCF)bleaching process were studied.The experimental results showed that the optimum process conditions were:pulp consistency 36%,pH value 2.0,ozone dosage 1.2%,ozone concentration 120 g/m3,reaction time 30 min,at room temperature for Z-stage;for P-stage pulp consistency 10%,the peroxidation dosage 3%,reaction time 120 min,reaction temperature 90℃,NaOH dosage 0.8%.The whiteness,viscosity and Kappa number of the bleached kraft bagasse pulp were 85.6%,559 mL/g and 3.57,respectively.At the same time,compared with the traditional bleaching processes(OQP1P2,OP1ZP2),the pollution load was the lowest when AZP short sequence bleaching was applied,CODCrvalue was 760 mg/L,BOD5 was 90 mg/L,and chroma value was 680 C.U.

关 键 词：硫酸盐蔗渣浆 高浓臭氧反应器 短序漂白 全无氧漂白 

分 类 号：TS745[轻工技术与工程—制浆造纸工程]