THE PHYSICOCHEMICAL AND TEXTURAL CHARACTERISTICS OF CATALYSTS IN THE CATALYTIC AROMATIZATION REACTION OF PROPANE- BUTANE FRACTIONS
Keywords:
propane, butane, chromatographic analysis, volumetric rate, high silicon zeolite, catalyst, textural characteristics, mesoporous, acidity center, IRspectrum, adsorption-desorption isotherm.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,Vkat = 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: Ssol = 72.0 and 170.0 m2 /g;Vporosity=0.107cm3 and 0.178 cm3 / g (V = 0.26 on water adsorption); dporosity = 50 and 80Å; the distance between the planes d001-9.8 and 17.6Å.
