Patent ID: 8578978
Filing Date: 2013-11-12
Classification: B01J

Abstract:
1. A device for loading particles of catalyst into the annular zone of a bayonet tube having an outer tube and an inner tube, said annular zone having an external diameter Dext and an internal diameter Dint, said annular zone being divided into N angular sectors by elements termed centralizers, said device comprising: a hopper for loading catalyst particles; a set of N loading tubes and a set of N chutes connected to a lower portion of the hopper and to said N loading tubes, each loading tube for supplying one angular sector and having a diameter Dt of more than 1.1 times the largest dimension of the catalyst particles, and less than 2 times the smallest dimension of the catalyst particles, the length of a loading tube initially being substantially equal to the length of said bayonet tube; a set of N flexible connection elements connecting each chute to a loading tube, thereby allowing an appropriate change of direction.