公开(公告)号：US20240246052A1

公开(公告)日：2024-07-25

申请号：US18566128

申请日：2022-06-23

申请人： CHINA PETROLEUM & CHEMICAL CORPORATION ,  SHANGHAI RESEARCH INSTITUTE OF PETROCHEMICAL TECHNOLOGY, SINOPEC

发明人： Hongyuan ZONG ,  Guozhen QI ,  Pan GAO ,  Xiaohong LI ,  Jing CAO ,  Zhinan YU ,  Yanxue WANG ,  Fei PENG

IPC分类号： B01J8/18 ,  B01J8/00 ,  B01J8/26 ,  C07C1/24

CPC分类号： B01J8/1827 ,  B01J8/0055 ,  B01J8/1863 ,  B01J8/26 ,  C07C1/24 ,  B01J2208/00752 ,  B01J2208/00849 ,  B01J2208/00902 ,  B01J2208/00938 ,  C07C2529/40

摘要： A fluidized bed reactor, a device for preparing low-carbon olefin, and a method for preparing low-carbon olefin are provided. The reaction zone of the fluidized bed reactor is sequentially, from bottom to top, provided with a raw material first distributor, a raw material second distributor and a catalyst distributor; the catalyst distributor is connected with the catalyst second feeding inlet; a dense-phase zone is formed between the raw material first distributor and the raw material second distributor, and the area where the catalyst distributor is located is formed as a catalyst distribution zone connected with the dense-phase zone; and at least one catalyst first feeding inlet(s) is provided on the side wall of reactor of the dense-phase zone. The distribution of the catalyst and the full contact of the catalyst with the raw materials can be achieved using the fluidized bed reactor and the device.