Fluidized bed method and reactor for the treatment of catalysts and catalyst carriers

US7232551B1 · kind B1 · utility

Assignee

• Basell Polyolefine GmbH · DE

Inventors

• Paulus De Lange · Wesseling, DE
• Hendrik Schönfelder · Mannheim, DE
• Michael Kammerer · Basel, CH
• Hans Werner Siebenhandl · Rheinbach, DE
• Kaspar Evertz · Schifferstadt, DE
• Stefan Wietfeldt-Haltenhoff · Lechenich, DE
• Joachim Werther · Bad Dürkheim, DE

Key dates

• Filing date: Oct 15, 1999
• Grant date: Jun 19, 2007
• Expiry date: Oct 15, 2019

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S526/901
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A method for the treatment of catalysts or catalyst carriers by: a) introducing and distributing a gas in the lower section of a reactor containing a catalyst or catalyst carrier bulk material; b) forming a fluidized bed in the reactor; c) treating the particles in the fluidized bed while removing the fine particles an/or retaining the course particles by means of a separating organ and d) discharging the reactor. To this end, a reactor bottom which tapers downwards is used.