Features of petrochemical cracking catalysts produced by aluminosilicate technology

2021 ◽  
Author(s):  
V.P. Doronin ◽  
O.V. Potapenko ◽  
T.P. Sorokina ◽  
P.V. Lipin ◽  
K.I. Dmitriev ◽  
...  
Keyword(s):  
Cracking Catalysts

Surface roughness measurements of vanadium-contaminated fluidized cracking catalysts by atomic force microscopy

1996 ◽  
Vol 54 ◽  
pp. 866-867
Author(s):  
H. Kinney ◽  
M.L. Occelli ◽  
S.A.C. Gould
Keyword(s):  
Surface Roughness ◽  
Zeolite Y ◽  
Atomic Level ◽  
Microporous Structure ◽  
Contact Mode ◽  
Force Microscopy ◽  
Atomic Force ◽  
Before And After ◽  
Roughness Measurements ◽  
Cracking Catalysts

For this study we have used a contact mode atomic force microscope (AFM) to study to topography of fluidized cracking catalysts (FCC), before and after contamination with 5% vanadium. We selected the AFM because of its ability to well characterize the surface roughness of materials down to the atomic level. It is believed that the cracking in the FCCs occurs mainly on the catalysts top 10-15 μm suggesting that the surface corrugation could play a key role in the FCCs microactivity properties. To test this hypothesis, we chose vanadium as a contaminate because this metal is capable of irreversibly destroying the FCC crystallinity as well as it microporous structure. In addition, we wanted to examine the extent to which steaming affects the vanadium contaminated FCC. Using the AFM, we measured the surface roughness of FCCs, before and after contamination and after steaming.We obtained our FCC (GRZ-1) from Davison. The FCC is generated so that it contains and estimated 35% rare earth exchaged zeolite Y, 50% kaolin and 15% binder.

scholarly journals Bioleaching of rare earth elements from waste phosphors and cracking catalysts

2016 ◽  
Vol 166 ◽  
pp. 34-40 ◽  
Author(s):  
David W. Reed ◽  
Yoshiko Fujita ◽  
Dayna L. Daubaras ◽  
Yongqin Jiao ◽  
Vicki S. Thompson
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Cracking Catalysts

Diffusion in Fluid Catalytic Cracking Catalysts on Various Displacement Scales and Its Role in Catalytic Performance

2005 ◽  
Vol 17 (9) ◽  
pp. 2466-2474 ◽  
Author(s):  
P. Kortunov ◽  
S. Vasenkov ◽  
J. Kärger ◽  
M. Fé Elía ◽  
M. Perez ◽  
...  
Keyword(s):  
Catalytic Cracking ◽  
Catalytic Performance ◽  
Fluid Catalytic Cracking ◽  
Cracking Catalysts

Vanadium-Zeolite Interactions in Fluidized Cracking Catalysts

1991 ◽  
Vol 33 (3-4) ◽  
pp. 241-280 ◽  
Author(s):  
Mario L. Occelli
Keyword(s):  
Cracking Catalysts

Reaction of Silica–Alumina Cracking Catalysts with Sodium Fluoride

1958 ◽  
Vol 62 (12) ◽  
pp. 1560-1563 ◽  
Author(s):  
A. L. Hensley ◽  
J. E. Barney
Keyword(s):  
Sodium Fluoride ◽  
Silica Alumina ◽  
Cracking Catalysts
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