Fluidized catalytic cracking catalyst and methods of making and using the same
AssigneeKetjen Limited Liability Company
InventorsMin Li, Edward Lee Foster, Bethzaely Fernandez-Reyes, Nataly Garcia Vargas, Shane Adam Bates
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Abstract
Processes for preparing a catalyst is provided that includes addition of a phosphorous containing component at one or more points are provided herein. The resulting catalysts are suitable for use in a fluidized catalytic cracker (FCC) or other similar chemical processing unit. Processes according to embodiments of the present technology are suitable for use in existing and commercial-scale facilities, and may result in reduced expense, while providing energy-saving and environmental benefits.
Claims20
A process for preparing a catalyst, the process comprising:
- (a) providing at least an amount of a zeolite, an amount of a silica source, an amount of an alumina source, and an amount of clay;
- (b) combining at least a portion of the zeolite, the silica source, the alumina source, and the clay with a liquid to form a slurry;
- (c) adding a monovalent acid to the slurry to provide an acid-modified slurry;
- (d) optionally adjusting the pH of the acid-modified slurry to provide a pH-adjusted slurry having a pH of at least 3;
- (e) shaping at least a portion of the acid modified slurry or pH adjusted slurry, when present, to form a plurality of catalytic particles;
- and
- (f) during at least a portion of steps (a) through (e), adding a phosphorous containing compound to at least one of the zeolite, the slurry, the acid-modified slurry, and the pH-adjusted slurry.
Dependencies are inferred from the claim text.