CATALYTIC CRACKING CATALYST REGENERATION METHOD AND SYSTEM USING BIO-BASED GAS-PHASE FUEL

WIPO Patent Application WO/2023/208083

A1

Disclosed is a catalyst regeneration method applicable to a fluidized catalytic cracker. The fluidized catalytic cracker comprises a catalytic cracking reactor and a catalyst regenerator. The regeneration method comprises the following steps: 1) providing a biomass-derived gas-phase fuel comprising hydrogen and/or methane; 2) directly feeding the gas-phase fuel into the catalyst regenerator without separation and purification; 3) introducing oxygen-containing gas into the catalyst regenerator, wherein the oxygen content of the oxygen-containing gas is 14-28% by volume; and 4) feeding a spent catalyst from the catalytic cracking reactor into the catalyst regenerator, enabling the spent catalyst therein to be in contact with the gas-phase fuel and the oxygen-containing gas, and performing coke-burning regeneration. According to the method in the present application, the biomass-derived gas-phase fuel for energy supply is introduced in a catalyst regeneration process, and a fossil fuel is replaced, so that an energy source of the catalytic cracker is fundamentally changed, carbon emission of a catalytic cracking unit can be greatly reduced, cyclic utilization of carbon elements is achieved, and energy can be provided for other process units.

XU YOUHAO (CN)
YANG WENJIE (CN)
HE MINGYUAN (CN)
WANG XIN (CN)

PCT/CN2023/091025

November 02, 2023

April 27, 2023

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CHINA PETROLEUM & CHEM CORP (CN)
SINOPEC RES INSTITUTE OF PETROLEUM PROCESSING CO LTD (CN)

B01J38/12; B01J38/00

WO2017118301A1

2017-07-13

CN102989528A	2013-03-27
CN103725309A	2014-04-16
US20120271073A1	2012-10-25

CHINA PATENT AGENT (H.K.) LTD. (CN)

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