Title:
PROCESS FOR PRODUCING EPOXYPROPANE BY USING HPPO METHOD OF LIQUID-SOLID CIRCULATING FLUIDIZED BED REACTION-REGENERATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2024/060581
Kind Code:
A1
Abstract:
Disclosed is a process for producing epoxypropane by using an HPPO method of a liquid-solid circulating fluidized bed reaction-regeneration system, which belongs to the technical field of epoxypropane production. In the present invention, by means of the liquid-solid circulating fluidized bed reaction-regeneration system, hydrogen peroxide is used to directly oxidize propylene to prepare epoxypropane. The liquid-solid circulating fluidized bed reaction-regeneration system mainly comprises a catalyst regenerator, a feeding inclined pipe, a lifting pipe reactor, a liquid-solid separator, a return inclined pipe and other components. In the process, the liquid-solid circulating fluidized bed reaction-regeneration system is used for replacing a traditional tubular fixed bed reactor, the liquid-solid interphase heat transfer and mass transfer rate is enhanced in the reactor, the reaction rate is greatly increased, the reaction time is shortened, side reactions are inhibited, and the effective utilization rate of hydrogen peroxide and the selectivity of epoxypropane are increased. The present invention provides a brand-new process for the production of epoxypropane, which is beneficial to reducing the production cost of epoxypropane.
Inventors:
HUANG JIAHUI (CN)
LIU YINGCHUN (CN)
SU XIN (CN)
HE GUSE (CN)
LONG HUAYUN (CN)
HE PENG (CN)
WANG CHANGYUN (CN)
LI XINJU (CN)
LIU YINGCHUN (CN)
SU XIN (CN)
HE GUSE (CN)
LONG HUAYUN (CN)
HE PENG (CN)
WANG CHANGYUN (CN)
LI XINJU (CN)
Application Number:
PCT/CN2023/086467
Publication Date:
March 28, 2024
Filing Date:
April 06, 2023
Export Citation:
Assignee:
DALIAN INST CHEM & PHYSICS CAS (CN)
International Classes:
C07D303/04; C07D301/12; C07D301/32
Foreign References:
| CN115501824A | 2022-12-23 | |||
| CN115745918A | 2023-03-07 | |||
| CN218654388U | 2023-03-21 | |||
| CN104130216A | 2014-11-05 | |||
| CN107108404A | 2017-08-29 | |||
| CN1439000A | 2003-08-27 |
Other References:
"Master Thesis", 15 March 2022, DALIAN UNIVERSITY OF TECHNOLOGY, CN, article ZHU, QUANREN: "Study of Fluidized Bed Propylene-Hydrogen Peroxide Gas-Phase Epoxidation and TS-1 Zeolite Catalysts Preparation", pages: 1 - 147, XP009553370
Attorney, Agent or Firm:
DALIAN EAST PATENT AGENT LTD (CN)
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