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Title:
FLUID CATALYTIC CRACKING REGENERATION APPARATUS, AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/098879
Kind Code:
A1
Abstract:
Disclosed are a fluid catalytic cracking regeneration apparatus, and the use thereof. The fluid catalytic cracking regeneration apparatus comprises a coke supplement device, a regenerator and an external catalyst circulation pipe, wherein an outlet of the coke supplement device is in fluid communication with an inlet of the regenerator; the external catalyst circulation pipe is in communication with a lower portion of the regenerator and the coke supplement device so as to return part of a catalyst in the regenerator to the coke supplement device; the coke supplement device is provided with a spent catalyst inlet, an oxygen-depleted gas inlet and a fuel oil inlet; the bottom of the regenerator is provided with an oxygen-enriched gas inlet; and in a direction of the flow of substances, the fuel oil inlet is arranged at a downstream position of the spent catalyst inlet. When the regeneration apparatus is used in a fluid catalytic cracking reaction with less coke generation, not only can a heat balance of a reaction-regeneration process be achieved, but the catalyst can also be uniformly heated up in a coke burning process of the regenerator without local hot spots and damage occurring to the physical and chemical properties of the catalyst.

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Inventors:
GONG JIANHONG (CN)
WEI XIAOLI (CN)
ZHANG ZHIGANG (CN)
Application Number:
PCT/CN2022/136231
Publication Date:
June 08, 2023
Filing Date:
December 02, 2022
Export Citation:
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Assignee:
CHINA PETROLEUM & CHEM CORP (CN)
SINOPEC RES INSTITUTE OF PETROLEUM PROCESSING CO LTD (CN)
International Classes:
B01J38/12; B01J38/00; B01J38/02; B01J38/30; C10G11/18
Domestic Patent References:
WO2017118301A12017-07-13
WO1993001257A11993-01-21
Foreign References:
CN102989528A2013-03-27
CN105521834A2016-04-27
CN105849235A2016-08-10
CN110240925A2019-09-17
CN104342196A2015-02-11
CN105505441A2016-04-20
CN206996619U2018-02-13
CN101063041A2007-10-31
CN102989527A2013-03-27
US5183558A1993-02-02
US4387043A1983-06-07
SE7704396L1977-11-08
US4851374A1989-07-25
US4051069A1977-09-27
Attorney, Agent or Firm:
CHINA PATENT AGENT (H.K.) LTD. (CN)
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