| Summary: | 碩士 === 雲林科技大學 === 環境與安全工程系碩士班 === 97 === Phenol and acetone was produced by cumene oxidation which cumene was oxidated to manufacture cumene hydroperoxide (CHP), and then it would be completed via acid catalysis. Especially, over 90% of the phenol was produced by cumene oxidation worldwide. There are many researches was aimed at acid catalysis by papers reviewing. Therefore, we focused on the effects of phenol and acetone on the decomposition of CHP in this study. The vent sizing package 2 (VSP2), thermal activity monitor III (TAM III) and differential scanning calorimetry (DSC) were utilized to resolve the exothermic behaviors, such as exothermic onset temperature (T0), heat power, heat of decomposition (ΔH), adiabatic self-heat rate, pressure-rising rate, maximum temperature of reaction system, adiabatic of maximum pressure (Pmax), time to maximum rate (TMR) etc.. The various methods would be achieved for obtaining the characteristics of reaction. Fourier transform infrared (FT-IR) spectrometry was used to analyze the CHP products with phenol and acetone respectively at 150oC via 8 hours. The results revealed that thermal decomposition of CHP being mixed with acetone and phenol was more hazardous than CHP alone. Furthermore, the limited effects of phenol and acetone were due to resonance. This study will assessed and verified the hazards of CHP and incompatible reaction of CHP mixed with its products by acid catalysis that is essentially important in process safety design.
|
|---|
