公开(公告)号：US11712675B2

公开(公告)日：2023-08-01

申请号：US16767238

申请日：2017-11-30

Applicant: Dalian Institute of Chemical Physics, Chinese Academy of Sciences

Inventor： Tao Zhang ,  Mao Ye ,  Zhongmin Liu ,  Jinling Zhang ,  Hailong Tang ,  Jinming Jia ,  Xiangao Wang ,  Cheng Zhang ,  Hua Li ,  Yinfeng Zhao ,  Chenggong Li

IPC: B01J8/00 ,  B01J8/18 ,  B01D45/16 ,  B01J29/40 ,  B01J29/85 ,  B01J37/28 ,  B01D50/20

CPC classification number: B01J8/1827 ,  B01D45/16 ,  B01D50/20 ,  B01J8/002 ,  B01J8/006 ,  B01J8/0055 ,  B01J8/1836 ,  B01J29/40 ,  B01J29/85 ,  B01J37/28 ,  B01J2208/00389 ,  B01J2208/00504 ,  B01J2208/00752 ,  B01J2208/00893

Abstract: The present application discloses a molecular sieve-based catalyst modification apparatus. The apparatus comprises a feed unit 1, a modification unit 2 and a cooling unit 3 connected in sequence; the feed unit comprises a catalyst feed unit 11 and a modifier feed unit 12, a catalyst and a modifier are introduced into the modification unit 2 respectively by the catalyst feed unit and the modifier feed unit and are discharged from the modification unit after sufficient reaction in modification unit, and then enter the cooling unit 3 for cooling. The present application further discloses a use method for the molecular sieve-based catalyst modification apparatus. The use method comprises: introducing a catalyst and a modifier into the modification unit 2 respectively through the feed unit 1; wherein the catalyst is modified by the modifier in the modification unit 2, and then discharged to the cooling unit 3 to cool until the temperature is lower than 50° C., and then the cooled modified catalyst is transferred to any storage device.

公开(公告)号：US11072571B2

公开(公告)日：2021-07-27

申请号：US16608444

申请日：2017-11-24

Applicant: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES

Inventor： Mao Ye ,  Tao Zhang ,  Jinling Zhang ,  Zhongmin Liu ,  Jinming Jia ,  Hailong Tang ,  Changqing He ,  Xiangao Wang ,  Cheng Zhang ,  Hua Li ,  Yinfeng Zhao ,  Chenggong Li

IPC: B01J8/24 ,  B01J4/00 ,  C07C2/86 ,  C07C15/08 ,  B01J8/18 ,  C07C1/24 ,  C07C2/88

Abstract: A fluidized bed reactor for producing para-xylene and co-producing light olefins from benzene and methanol and/or dimethyl ether, including a first distributor and a second distributor. The first distributor is located at the bottom of the fluidized bed, and the second distributor is located at the downstream of the first distributor along a gas flow direction. Also, a method for producing para-xylene and co-producing light olefins, including the following steps: a material stream A enters a reaction zone of the fluidized bed reactor from the first gas distributor; a material stream B enters the reaction zone of the fluidized bed reactor from the second gas distributor; a reactant contacts a catalyst in the reaction zone to generate a gas phase stream comprising para-xylene and light olefins.