Title:
CATALYST FOR PREPARING VINYL CHLORIDE BY CRACKING 1,2-DICHLOROETHANE AND PREPARATION AND REGENERATION METHODS THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/220312
Kind Code:
A1
Abstract:
Disclosed are a catalyst for preparing vinyl chloride by cracking 1,2-dichloroethane and preparation and regeneration methods therefor. The catalyst for preparing vinyl chloride by cracking 1,2-dichloroethane comprises a carrier and a nitrogen-containing carbon material as an active component of the catalyst, wherein the nitrogen-containing carbon material is loaded on the carrier. The method for preparing the catalyst comprises loading an organic substance onto an inorganic porous carrier, and then pyrolyzing and subjecting same to a carbonization-nitridation process in a nitrogen-containing compound atmosphere. The method for regenerating the catalyst comprises roasting the catalyst, deactivated by carbon deposition, in an oxidative atmosphere, so as to remove all carbonaceous parts from the surface thereof, and then further repeating the process for preparing the catalyst. Compared to the existing thermal cracking technologies, the catalyst can reduce the reaction temperature, significantly reduce the energy consumption, reduce the production cost, and improve the selectivity and conversion rate; and the catalyst is also cheap and renewable and has a long service life.
Inventors:
XU JINMING (CN)
FAN SISI (CN)
HUANG YANQIANG (CN)
ZHANG TAO (CN)
HUANG CHIN LIEN (CN)
HUNG WAN TUN (CN)
CHEN YU CHENG (CN)
WU CHIEN HUI (CN)
CHENG YA WEN (CN)
WEN MING HSIEN (CN)
CHANG CHAO CHIN (CN)
HUANG TSAO CHENG (CN)
FAN SISI (CN)
HUANG YANQIANG (CN)
ZHANG TAO (CN)
HUANG CHIN LIEN (CN)
HUNG WAN TUN (CN)
CHEN YU CHENG (CN)
WU CHIEN HUI (CN)
CHENG YA WEN (CN)
WEN MING HSIEN (CN)
CHANG CHAO CHIN (CN)
HUANG TSAO CHENG (CN)
Application Number:
PCT/CN2019/085314
Publication Date:
November 05, 2020
Filing Date:
April 30, 2019
Export Citation:
Assignee:
DALIAN INST CHEM & PHYSICS CAS (CN)
FORMOSA PLASTICS CORP (CN)
FORMOSA PLASTICS CORP (CN)
International Classes:
B01J27/28; B01J27/24; B01J37/02; B01J37/08; B01J38/02; C07C17/25; C07C21/06
Foreign References:
| CN106669757A | 2017-05-17 | |||
| CN105749948A | 2016-07-13 | |||
| CN104289247A | 2015-01-21 | |||
| CN105833892A | 2016-08-10 | |||
| CN105983428A | 2016-10-05 | |||
| CN109926081A | 2019-06-25 | |||
| EP0738699A1 | 1996-10-23 | |||
| CN201610256390A | 2016-04-22 |
Other References:
JINMING XU ET AL.: "Synthesis of nitrogen-doped ordered mesoporous carbons for catalytic dehydrochlorination of 1,2-dichloroethane", CARBON, vol. 80, 2014, pages 610 - 616, XP029051573, DOI: 10.1016/j.carbon.2014.09.004
WEI ZHAO ET AL.: "Catalytic dehydrochlorination of 1,2-dichloroethane to produce vinyl chloride over N-doped coconut activated carbon", RSC ADVANCES, vol. 5, 2015, pages 104071 - 104078
See also references of EP 3756758A4
WEI ZHAO ET AL.: "Catalytic dehydrochlorination of 1,2-dichloroethane to produce vinyl chloride over N-doped coconut activated carbon", RSC ADVANCES, vol. 5, 2015, pages 104071 - 104078
See also references of EP 3756758A4
Attorney, Agent or Firm:
PERIODIC LAW FIRM (CN)
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