Abstract：In order to investigate the dynamic estimation performance of temperature oscillation calorimetry on reactor heat transfer factor (UA) and heat of reaction (Qr), a general calorimetric reactor model was established based on thermal equilibrium theory. The effects of exothermic working conditions, flow rate in jacket and reactor volume on the estimation results of this method were simulated, and the applicability of the oscillatory calorimetry method was quantitatively evaluated by using the overall time constant (τ') of the system. The results showed that the temperature oscillation calorimetry was suitable for the reaction process with a stable exothermic rate. It was recommended to apply the temperature oscillation calorimetry technique in small reactors within 5 L. However, it was necessary to increase the oil flow rate in jacket and to increase τ' for a larger reactor or a drastic change in the exothermic reaction process. The recommended value of τ' should be less than 900 s, and as this value increases, the oscillation period will gradually lengthen and the overall estimated mass of UA and Qr will gradually decrease during the reaction. The results showed the applicability of the temperature oscillation calorimetry, which is of great significance for the development of reactor system.
LIU Hui,XU Qiyue,YE Shuliang. Investigation on Reactor Temperature Oscillation Calorimetry Using a Dynamic Heat Transfer Model[J]. Chemical Reaction Engineering and Technology, 2023, 39(3): 252-264.
