公开(公告)号：US10576443B1

公开(公告)日：2020-03-03

申请号：US16277103

申请日：2019-02-15

Applicant: UOP LLC

Inventor： Joseph Colmone ,  Michael S. Sandacz ,  Michael A. Stine ,  Richard A. Johnson, II ,  Nicholas Madonia ,  Minwoo Kim

IPC: B01J8/00 ,  B01J8/18 ,  B01J8/38 ,  B01J19/00 ,  B01J29/40 ,  B01J29/90 ,  B01J38/30

Abstract: A regenerator for an FCC apparatus. The regenerator includes an internal riser inside of a outer shell. The internal riser includes a cone and a cone skirt. An annulus is formed between the internal riser and the outer shell. A sealing apparatus for keeping catalyst out of a portion of the annulus comprises a first sealing element and a second sealing element disposed above the first sealing element. An annular trough in the annulus below the primary seal is filled with material that has a heat transfer coefficient at least as high as air to allow heat to get to the inner surface of the outer shell.