Patent ID: 7001573
Filing Date: 2006-02-21
Classification: B01J,C07C

Abstract:
1. A fluidized-bed reactor for the oxychlorination of ethylene using a fluidized bed of catalyst granules subjected to abrasion, resulting in the creation of dust particles, said reactor comprising: a dome part defining a dome space; a baseplate located in said dome part of the reactor; and a plurality of filter cartridges carried on the lower surface of said baseplate, said filter cartridges dipping into an upper region of the fluidized bed of catalyst granules; wherein said dome space is divided above said baseplate into at least two chambers, said at least two chambers comprising a first chamber having an outlet for a main gas stream and a second chamber having an outlet for a bypass gas stream, wherein the bypass gas stream is connected to the main gas stream, and the main gas stream is connected to a quench vessel; wherein a first group of said filter cartridges is coordinated with said first chamber and in communication with the main gas stream, and a second group of said filter cartridges is coordinated with said second chamber and in communication with the bypass gas stream; and wherein said first group of filter cartridges have a pore size differing from a pore size of said second group of filter cartridges, said first group having a pore size configured to retain dust particles in the reactor, and said second group having a pore size configured to permit the discharge of dust particles from the reactor.