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;
Mao Ye, Dalian, CN;
Tao Zhang, 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 fluidized bed regenerator, a device for preparing low-carbon olefins, and a use thereof are provided. The fluidized bed regenerator includes a second activation zone, a first activation zone, and a gas-solid separation zone from bottom to top; the second activation zone axially communicates with the gas-solid separation zone; the first activation zone is arranged on a periphery of a junction between the second activation zone and the gas-solid separation zone; the first activation zone is an annular cavity; n baffles are radially arranged in the first activation zone, and the n baffles divide the first activation zone into n first activation zone subzones; and a catalyst circulation hole is formed in each of n−1 of the baffles such that a catalyst entering the first activation zone flows in an annular direction.