用绝热测试的压力数据计算分解反应的表观活化能

绝热量热技术的广泛应用促进了绝热动力学研究的发展.至今为止，绝热动力学的研究仍是以Townsend 和 Tou在1980年提出的绝热动力学方程为基础.他们利用反应物浓度与温度的关系建立动力学模型，从而求得了反应的活化能.但这种方法在反应体系的温度效应不明显时的应用，就受到很大的限制.因此，本文通过建立用压力表示的动力学方程，充分利用绝热量热中的压力数据，提出了一种计算反应活化能的新方法.同时用这种方法计算了过氧化二叔丁基和2-甲基-5-硝基苯磺酸的绝热分解活化能值，并与文献值和其他计算方法所得结果进行了比较.

Calculating Apparent Activation Energy of adiabatic Decomposition Process Using Pressure Data

Considering the limitation of now available adiabatic kinetic analysi s, a method to calculate activation energy by dealing with pressure data obtaine d from the adiabatic measurement is proposed. New kinetic equation is establishe d and the apparent activation energies for the thermal decomposition of di-tert-butyl peroxide and 2-methyl-4-nitrobenzenesulfonic acid are calculated. The obtained apparent activation energies are compared with the values in the liter ature and the values obtained from other methods, and the difference between the m and the underlying reasons are discussed.