The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 13, 2025
Filed:
Oct. 16, 2020
Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, CN;
Tao Zhang, Dalian, CN;
Mao Ye, Dalian, CN;
Jinling Zhang, Dalian, CN;
Shuliang Xu, Dalian, CN;
Hailong Tang, Dalian, CN;
Xiangao Wang, Dalian, CN;
Cheng Zhang, Dalian, CN;
Jinming Jia, Dalian, CN;
Jing Wang, Dalian, CN;
Hua Li, Dalian, CN;
Chenggong Li, Dalian, CN;
Zhongmin Liu, Dalian, CN;
Abstract
A regeneration device, a device for preparing low-carbon olefins, and a use thereof are provided. The regeneration device includes a first regenerator and a second regenerator; a first activation zone of the first regenerator is connected to the second regenerator through a pipeline, such that a catalyst in the first activation zone is able to be delivered to the second regenerator; and the second regenerator is connected to a gas-solid separation zone of the first regenerator through a pipeline, such that a catalyst in the second regenerator is able to be delivered to the gas-solid separation zone. The regeneration device can adjust the coke content, coke content distribution, and coke species in a dimethyl ether/methanol to olefins (DMTO) catalyst to control an operation window of the DMTO catalyst, which improves the selectivity for low-carbon olefins and the atomic economy of a methanol-to-olefins (MTO) technology.