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一种预测速生桉木常规KP法纸浆卡伯值的新模型

A New Prediction Model for Pulp Kappa Number in Eucalyptus Kraft Pulping

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【作者】 罗小林柴欣生詹怀宇付时雨张翠

【Author】 LUO Xiao-lin1 CHAI Xin-sheng1,2,ZHAN Huai-yu1 FU Shi-yu1 ZHANG Cui1(1. State Key Lab of Pulp and Paper Engineering,South China University of Technology,Guangzhou,Guangdong Province,510640; 2. Institute of Paper Science and Technology,Georgia Institute of Technology,Atlanta,GA 30332,USA)

【机构】 华南理工大学制浆造纸工程国家重点实验室佐治亚理工大学造纸科学与技术研究院

【摘要】 研究了蒸煮温度、时间、H-因子、消耗碱的量和初始硫化度与蒸煮终点浆料卡伯值之间的关系。结果发现,卡伯值与H-因子的倒数成线性关系;与消耗的碱量平方的倒数成线性关系;与硫化物和残余碱含量之和的倒数同样成线性关系,并得出了卡伯值预测的数学经验方程,即:K=A+B/{H[(CAA-0.5S.CAA)-(0.5S.CAA+CREA)]2}。验证结果表明,该模型可以对速生桉木常规KP法蒸煮终点浆料卡伯值进行准确预测,其线性相关系数R2=0.9152。

【Abstract】 A prediction model for pulp Kappa number during eucalyptus kraft pulping was presented. Based on the relationships between the pulp Kappa number and pulping parameters such as H-factor,initial concentration of alkali and sulfide,and residual alkali in the cooking liquor,an empirical model,i.e.,K=A+B/{H[(CAA -0.5S·CAA)-(0.5S·CAA+CREA)]2} with A = 9.50 and B = 9.28×105,was proposed. The result showed that there is a good agreement (R2 = 0.9152) between the measured and predicted pulp Kappa number,indicating that the model is justifiable to be applied to predict pulp Kappa number during eucalyptus kraft pulping.

  • 【文献出处】 中国造纸 ,China Pulp & Paper , 编辑部邮箱 ,2009年08期
  • 【分类号】TS713
  • 【被引频次】9
  • 【下载频次】195
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