FLUIDIZED BED REACTOR, APPARATUS, AND METHOD FOR PREPARING LOW-CARBON OLEFIN FROM OXYGEN-CONTAINING COMPOUND

Title:

FLUIDIZED BED REACTOR, APPARATUS, AND METHOD FOR PREPARING LOW-CARBON OLEFIN FROM OXYGEN-CONTAINING COMPOUND

Document Type and Number:

WIPO Patent Application WO/2022/077452

Kind Code:

A1

Abstract:

Provided are a fluidized bed reactor, an apparatus, and a method for preparing low-carbon olefin from an oxygen-containing compound. The fluidized bed reactor comprises a reactor housing, a reaction zone, a coke regulation zone, and a conveying pipe; n baffle plates are arranged in the coke regulation zone; the n baffle plates divide the coke regulation zone into n sub coke regulation zones; the n sub coke regulation zones comprise a first sub coke regulation zone, and second to nth sub coke regulation zones; at least one catalyst flow-through hole is formed on each of n-1 baffle plates, so that a catalyst flows along a ring in the coke regulation zone; and n is an integer. The apparatus and method can be adapted for a new generation of DMTO catalysts having a high methanol treatment capability and high low-carbon olefin selectivity, and the production unit consumption is 2.50-2.58 ton of methanol/low-carbon olefin.

Inventors:

YE MAO (CN)
ZHANG TAO (CN)
ZHANG JINLING (CN)
XU SHULIANG (CN)
TANG HAILONG (CN)
WANG XIANGAO (CN)
ZHANG CHENG (CN)
JIA JINMING (CN)
WANG JING (CN)
LI HUA (CN)
LI CHENGGONG (CN)
LIU ZHONGMIN (CN)

Application Number:

PCT/CN2020/121553

Publication Date:

April 21, 2022

Filing Date:

October 16, 2020

Export Citation:

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Assignee:

DALIAN INST CHEM & PHYSICS CAS (CN)

International Classes:

B01J8/24; B01J29/90; C07C1/20; C07C11/02

Domestic Patent References:

WO2015081489A1

2015-06-11

Foreign References:

CN104672044A	2015-06-03
CN104672040A	2015-06-03
CN101259433A	2008-09-10
CN107961743A	2018-04-27
CN1382198A	2002-11-27
EP3721995A1	2020-10-14

Other References: