Title:
COLD REGENERATED CATALYST CIRCULATION METHOD AND DEVICE THEREFOR
Document Type and Number:
WIPO Patent Application WO/2016/110253
Kind Code:
A1
Abstract:
Provided is a method for cooling and circulating a regenerated catalyst. A regenerated catalyst from a regenerator is cooled to 200-720oC by catalyst coolers and directly enters a riser reactor without being mixed with a hot regenerated catalyst, or enters the riser reactor after being mixed with another un-cooled hot regenerated catalyst portion to obtain a mixed regenerated catalyst having a temperature lower than the regenerator temperature. The bottom of each catalyst cooler is at least provided with a fluidising medium distributer, the superficial gas velocity range being 0-0.7 m/s (preferably 0.005-0.3 m/s, optimally 0.01-0.15 m/s), the temperature of the cold regenerated catalyst mainly being controlled by adjusting the flow rate of a fluidising medium. The method for cooling and circulating a regenerated catalyst has a wide range of applications, and may be used for various fluid catalytic cracking processes and other gas-solid reaction processes.
Inventors:
LI QUNZHU (CN)
Application Number:
PCT/CN2016/070252
Publication Date:
July 14, 2016
Filing Date:
January 06, 2016
Export Citation:
Assignee:
LI QUNZHU (CN)
International Classes:
B01J38/00; C10G11/18
Foreign References:
| CN103379959A | 2013-10-30 | |||
| CN101474582A | 2009-07-08 | |||
| US5066627A | 1991-11-19 | |||
| CN101932671A | 2010-12-29 |
Other References:
See also references of EP 3243567A4
Attorney, Agent or Firm:
LIU, SHEN & ASSOCIATES (CN)
北京市柳沈律师事务所 (CN)
北京市柳沈律师事务所 (CN)
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