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。
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 ×10^5, 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.
出处
《中国造纸》
CAS
北大核心
2009年第8期6-9,共4页
China Pulp & Paper
关键词
速生桉木
硫酸盐法蒸煮
卡伯值
模型
eucalyptus
kraft pulping （KP）
Kappa number
prediction model
H-factor
