MICROSPHERICAL CATALYST CARRIER Russian patent published in 2006 - IPC B01J21/04 C01F7/02 

FIELD: catalyst carrier preparation methods.

SUBSTANCE: invention has for object development of catalyst carrier based on oxygen-containing aluminum compound having specific chemical analysis, morphologic and texture properties, elevated ability of interacting with catalyst components, and also specified particle size, which catalyst allows preparation of high-strength, active, and stable catalysts. Problem is solved by means of microspherical shape of catalyst carrier including aluminum compounds of formula Al₂O₃·nH₂O having X-ray amorphous structure and prepared via fast partial dehydration of hydroargillite. Carrier represents spheroid particles consisted of hexagonal rods with system of planar parallel pores corresponding to cleavage along face (001). Carrier contains water in amount corresponding to n=0.5-1.0, has particle size 20-250 μm, specific surface 80-250 m²/g, and pore volume 0.1-0.3 cm³/g. Carrier serves for preparation of fluidized bed catalysts used in paraffin hydrocarbon dehydrogenation, oxychlorination, cracking, and other processes. Carrier may also be used as precursor for various hydroxide modifications, including pseudobauhmite, bayerite, various alumina modifications, adsorbents, fillers, fore-retardants and the like.

EFFECT: increased strength, activity, and stability of catalysts.

9 cl, 3 dwg, 2 tbl, 5 ex