Method for partially regenerating catalyst for methanol and/or dimethyl ether-to-olefin and method for methanol and/or dimethyl ether-to-olefin

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United States of America Patent

PATENT NO 11975315
APP PUB NO 20220274099A1
SERIAL NO

17609764

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
DALIAN INSTITUTE OF CHEMICAL PHYSICS CHINESE ACADEMY OF SCIENCESNO 457 ZHONGSHAN ROAD SHAHEKOU DISTRICT DALIAN CITY LIAONING PROVINCE DALIAN CITY LIAONING PROVINCE 116000

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Liu, Zhongmin Dalian, CN 103 242
Tang, Hailong Dalian, CN 25 54
Wang, Jing Dalian, CN 1745 13464
Wang, Xiangao Dalian, CN 25 40
Ye, Mao Dalian, CN 90 916
Zhang, Jinling Dalian, CN 36 47
Zhang, Tao Dalian, CN 1018 9317
Zhou, Jibin Dalian, CN 5 4

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