过碳酸钠热分解动力学研究(Ⅱ)-最佳实验点的确定

Research on thermal decomposition kinetics of sodium percarbonate

采用置信域容积最小为目标的实验设计方法,对过碳酸钠分解动力学实验进行了统计设计,确定了最佳实验点的位置.研究结果表明,在过碳酸钠分解率0.1及0.85两个位置做实验,能够对过碳酸钠分解动力学模型中的两参数k和t0精确估值.

Statistic design was used for the experiment on decomposition kinetics of sodium percarbonate according to experimental design method on which the volume of confidence field is minimum. The error of decomposition kinetics model was analyzed, and the optimum experiment position was determined. Results indicated that when the experiment was done at the position of fractional decomposition of sodium percarbonate being 0.1 and 0.85, estimate values of the two parameter k and to were more accurate.