The Physicochemical and Textural Characteristics of Catalysts in the Catalytic Aromatization Reaction of Propane- Butane Fractions

Abstract

To examine the catalytic aromatization reaction of propane-butane fraction(MoO₃)∙(ZnO)_y∙(ZrO₂)_z in the mesoporous catalyst,  this experiment was conducted under the following optimal conditions:when 1.0 mass% Zrnanopowders were added to the mesoporous catalyst (MoO₃)∙(ZnO)_y∙(ZrO₂)_zcontainingthe  flow differential reactor,V_kat = 1.0 cm³, the  size of catalyst granules 0.5-1.0 mm,  the temperature 450-650ºC, P = 0.1 MPa, volumetric rate of propane 600 h^-1.It was determined that both types of acid centers’ concentrations and strengths were increased The textural characteristics of H-bentonite and HSZwere determined as follows:  S_sol = 72.0 and 170.0 m²/g;V_porosity=0.107cm³ and 0.178 cm³ / g (V = 0.26 on water adsorption);  d_porosity = 50 and 80Å;  the distance between the planes d₀₀₁-9.8 and 17.6Å.