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考虑了BHET缩聚过程的主反应、逆反应及热裂解反应,得到了一个动力学方程式,再对不同类型和不同工况的工业反应器的实测数据进行综合分析,从而经验地确定了动力学方程式中不易测定的乙二醇(EG)浓度与搅拌速度、比表面等的关联式,最后得到了聚合度(DP)随工艺条件(温度T、压力P、反应时间τ)及反应器结构参数(搅拌速度R、反应体系的比表面ε)变化的半经验公式:这个公式能够概括前人提出的一些公式,并能解释已经发表的许多实验曲线。可以定性和半定量地解决缩聚反应器设计中的问题。
Taking into account the main reaction, the reverse reaction and the pyrolysis reaction of the BHET polycondensation process, a kinetic equation is obtained, and then the actual measured data of industrial reactors of different types and conditions are comprehensively analyzed, thereby empirically determining the kinetic equation The relationship between the degree of polymerization (DP) and process conditions (temperature T, pressure P, reaction time τ) and reactor structural parameters (stirring Velocity R, specific surface ε of the reaction system): This formula can summarize some of the formulas proposed by the predecessor and explain many published experimental curves. Polycondensation reactor design problems can be solved qualitatively and semi-quantitatively.