麦草蒸煮参变数定量关系的计算机辅助研究

Quantitative Relationship of Cooking Responses with Variables in Wheat Straw Cooking Processes

应用计算机辅助研究了麦草中性亚硫酸钠法(NS)、硫酸盐法(KP)和烧碱-蒽醌法(Soda-AQ)蒸煮过程中纸浆得事和木素含量(或硬度)随药品用量(Na_2SO_3或 NaOH 及 AQ).温度和升温、保温时间及药品浓度变化的定量关系.共得到21个数学模型。研究表明,三种方法的定量规律很不相同,对三种方法影响最大的因素分别为 Na_2SO_3浓度,温度以及温度和 NaOH 用量.

The quantitative relationship of pulp yield or residual lignin contents with some variables,e.g.cooking temper- ature,time to and at temperature,Na_2SO_3 or NaOH charge,and AQ addition as well as Na_2SO_3 or NaOH concentra- tion in the cooking liquor during neutral sodium sulfite pulping(NS),kraft pulping(KP)and Soda-AQ pulping of wheat straw were studied on a laboratory scale.Seven multivariate-mathematical models for each of three meth- ods were developed with a microcomputor.It revealed that the quantitative laws of three methods differred from each other much more;especially,the NS cooking.The most important variables of effect on cooking process was Na_2SO_3 concentration in the cooking liquor for NS methods and cooking temperature for KP methods,as well as cooking temperature and NaOH charge for Soda-AQ cooking precesses. Also,the mathematical models described the synergism of the factors quantitatively.