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US 9,433,934 B2Granted
In-situ produced Y-faujasite from kaolin-derived, pre-shaped particles and the method of preparation and the use thereof
AssigneeBASF SE
InventorsXingtao Gao, David Stockwell, Gary M. Smith
Life of this patent
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Abstract
A zeolite-containing fixed bed catalyst is formed by pre-shaping a mixture of a reactive aluminum-containing component and a matrix component into pre-shaped particles, and contacting the pre-shaped particles with a reactive liquid containing a silicate for a sufficient time and temperature to form an in-situ zeolite within the pre-shaped particles. The contacting of the pre-shaped particles and the liquid is achieved such that there is relative movement between the pre-shaped particles and the liquid.
Claims18
A process for preparing a zeolite-containing fixed bed catalyst, the process comprising:
- shaping a first mixture of a reactive aluminum-containing component and one or more matrix-forming components into pre-shaped particles having a size suitable for fixed bed catalysis, wherein said shaping comprises extrusion;
- and
- contacting said pre-shaped particles with a liquid containing a reactive silicate component for a time and a temperature sufficient to crystallize zeolite Y on said pre-shaped particles, wherein said contacting comprises providing velocity of at least one of said pre-shaped particles relative to said liquid or said liquid relative to said pre-shaped particles.
Dependencies are inferred from the claim text.