TY - JOUR ID - 67299 TI - CFD modeling for selective formation of propylene from methanol over synthesized Mn-substituted MFI metallosilicate catalyst JO - Iranian Journal of Chemical Engineering(IJChE) JA - IJCHE LA - en SN - 1735-5397 AU - Hadi, N. AU - Niaei, A. AU - alizadeh, r. AD - Faculty of Chemical Engineering, Sahand University of Technology, Tabriz, Iran AD - Faculty of Chemical Engineering, University of Tabriz, Tabriz, Iran Y1 - 2018 PY - 2018 VL - 15 IS - 2 SP - 22 EP - 37 KW - Mn-substituted MFI metallosilicate KW - Methanol to propylene KW - CFD modeling KW - detailed reaction mechanism KW - energy equation DO - N2 - The high silica Mn-substituted MFI metallosilicate catalyst with Si/Al molar ratio of 220 and Si/Mn molar ratio of 50 was successfully synthesized by hydrothermal method. The catalyst sample was appropriately characterized by XRD, FE-SEM, EDX and BET techniques. The Mn-substituted MFI metallosilicate has not been reported as the potential catalyst for the methanol to propylene (MTP) reaction. The prepared catalyst was examined in the MTP reaction at the optimal operating conditions. Furthermore, for elucidating the flow field of the MTP fixed bed reactor, a three-dimensional (3D) reactor model was developed. A detailed reaction mechanism which was proposed for the MTP reaction over the Mn-impregnated MFI zeolite (Mn/H-ZSM-5) was properly employed. The reaction mechanism was integrated to a computational fluid dynamics (CFD) for simulating the kinetic, the energy equation and the hydrodynamics of the MTP process, simultaneously. The component distribution during proceeding of the MTP reaction was also simulated as a function of time on stream. The CFD modeling results were validated by the actual data which were obtained over the Mn-substituted MFI metallosilicate catalyst. With regard to the findings, the experimental data were in good agreement with the predicted values of the CFD modeling. UR - https://www.ijche.com/article_67299.html L1 - https://www.ijche.com/article_67299_e97757f6634f6c1895ce040af2c5d979.pdf ER -