Abstracts Book - IMRC 2018

• SE2-P025
PREPARATION AND CHARACTERIZATION OF THE SUPPORT FOR
COMBUSTION CATALYST OF THE FCC PLANT REGENERATOR
Arturo Pallares García 1 , José Luis Contreras 1 , Beatriz Zeifert 2 , Tamara Vázquez 1 , Griselda
Bermudez 1
1 Universidad Autónoma Metropolitana, CBI-Departamento de energía, Mexico. 2 Instituto
Politécnico Nacional - IPN - ESIQIE, UPALM, Mexico.
The characteristics of the final product and particles sizes in the alumina
powders are important for their in use various applications, such as supports or
catalysts, special refractory parts, electronic components and others. In this
work, spherical particles of boehmite (aluminum oxy-hydroxide) were obtained
by spray drying of aqueous slurries with different solids contents about 72-103
g/L of boehmite crystals. Subsequently, the dried powders are calcined to obtain
alumina powders (γ-Al 2 O 3 ). As atomization device, a pressure nozzle with a oneturn
swirlchamber was used. Some process parameters are varied: the
concentration of solids in the feed slurry, the orifice sizes of the pressure nozzle
and the atomization pressure, in order to analyze the effect of these parameters
on the maximum particle size. On the other hand, the alumina powders were
characterized by thermal gravimetric analysis (TGA), scanning electron
microscopy (SEM) and surface area (BET), the bulk density and the residual
moisture content of the powders is also measured. The experimental results
revealed that concentration of the boehmite slurries, the orifice size of the
pressure nozzle and the atomization pressure are parameters that had an effect
on the maximum particle size. The obtained alumina powders have narrow
particle size distributions that can be suitable for the combustion promoter
catalyst support of the regenerator in the catalytic cracking plant (FCC) and for
other applications.
Acknowledgment:
The present work was carried out within the framework of collaboration
between the Universidad Autónoma Metropolitana-Azcapotzalco and the
Instituto Politecnico Nacional (ESIQIE).
Keywords: alumina particles, spray drying, plant (FCC)
Presenting authors email: rotuar20@hotmail.com