In-situ produced Y-faujasite from kaolin-derived, pre-shaped particles and the method of preparation and the use thereof

摘要

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.

主权项

1. 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.