METHOD FOR PARTIALLY REGENERATING CATALYST FOR METHANOL AND/OR DIMETHYL ETHER-TO-OLEFIN AND METHOD FOR METHANOL AND/OR DIMETHYL ETHER-TO-OLEFIN

WIPO Patent Application WO/2020/227849

A1

Disclosed is a method for partially regenerating a catalyst for methanol and/or dimethyl ether-to-olefin. The method comprises: introducing a mixed gas into a regenerated region containing a catalyst to be regenerated, and subjecting same to a partial regeneration reaction to obtain a regenerated catalyst, wherein the mixed gas contains water vapor and air; and in the regenerated catalyst, the coke content of at least part of the regenerated catalyst is greater than 1%. The method utilizes the coupling of a mixed gas of water vapor and air to activate a deactivated catalyst, selectively eliminate part of a coke deposit in the catalyst to be regenerated, and obtain a partially regenerated catalyst for methanol-to-olefin. Another aspect of the present invention is that further provided is a method for methanol and/or dimethyl ether-to-olefin by using the partially regenerated catalyst for methanol-to-olefin regenerated by means of the method.

WO/2013/184282	PROCESS FOR FLUID CATALYTIC CRACKING AND AN APPARATUS RELATED THERETO
WO/2011/031579	AROMATIC HYDROCARBON PURIFICATION METHOD
JP4696430	Exhaust gas purification catalyst

ZHANG JINLING (CN)
YE MAO (CN)
LIU ZHONGMIN (CN)
ZHOU JIBIN (CN)
ZHANG TAO (CN)
WANG XIANGAO (CN)
TANG HAILONG (CN)
WANG JING (CN)

PCT/CN2019/086394

November 19, 2020

May 10, 2019

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DALIAN INST CHEM & PHYSICS CAS (CN)

B01J29/90; B01J38/06; C07C1/20; C07C11/02

CN101844089A	2010-09-29
CN107961743A	2018-04-27
CN107961745A	2018-04-27
CN104801352A	2015-07-29
US6965057B2	2005-11-15

See also references of EP 3967400A4

PERIODIC LAW FIRM (CN)

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