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:
Apr. 29, 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 reactor, a device, and a method for producing low-carbon olefins from oxygen-containing compound are provided. The fluidized bed reactor includes a reactor shell, a reaction zone, a coke control zone and a delivery pipe, where there are n baffles arranged in the coke control zone, and the n baffles divide the coke control zone into n sub-coke control zones which include a first sub-coke control zone, a second sub-coke control zone, and an nth sub-coke control zone; at least one catalyst circulation hole is provided on each of the n-1 baffles, so that the catalyst flows in an annular shape in the coke control zone, where n is an integer. The device and method can be adapted to a new generation of DMTO catalyst, and the unit consumption of production ranges from 2.50 to 2.58 tons of methanol/ton of low-carbon olefins.