tIn the present study, the Eulerian–Eulerian multiphase approach was implemented to simulate the hydrotreatingprocesses (hydrodesulfurization (HDS) and hydrodearomatization (HDA)) in the trickle bed reactor (TBR) by means ofcomputational fluid dynamics (CFD) technique. A new gas–liquid interphase heat transfer coefficient was used in theCFD model to predict the reactor performance at non-isothermal conditions. The effects of feed inlet temperature,gas and liquid velocities, operational pressure and hydrogen sulfide concentration of the gas phase were investigatedto calculate the reactions conversions and the bed temperature distribution. Also, the influence of bed porosity andadiabatic operational conditions on the reactor temperature and HDS reaction conversion was discussed. The resultsshowed at adiabatic reactor, HDS reaction conversion increased about 9% compared to constant wall temperaturecondition. Furthermore, it was found that neglecting the gas–liquid interphase heat transfer effect in the CFD modelincreases the average relative error between numerical and the experimental data at prediction of HDS conversionabout 5% and also affects the bed temperature pattern.
کلید واژگان :Computational fluid dynamics (CFD); Hydrotreating; Non-isothermal condition; Trickle bed reactor;Gas–liquid heat transfer
ارزش ریالی : 600000 ریال
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