Title:
MULTI-STAGE NANOREACTOR CATALYST AND PREPARATION AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2019/007008
Kind Code:
A1
Abstract:
Disclosed is a multi-stage nanoreactor catalyst capable of directly converting a synthesis gas into aromatic hydrocarbons in one step, and the preparation and application thereof. The catalyst consists of a core layer of an iron-based Fischer-Tropsch catalyst, a transition layer of a porous oxide or porous carbon material and a molecular sieve shell layer having an aromatization function. The molecular sieve of the shell layer can be further modified by a metal element or a non-metal element, and the outer surface of the molecular sieve is further modified by a silicon oxide to adjust the acidic sites on the outer surface and the pore size of the molecular sieve, thereby inhibiting the formation of heavy aromatic hydrocarbons. A preparation method for the catalyst can prepare a transition layer, and a shell layer molecular sieve with or without an auxiliary agent in the shell layer and with or without surface modification, by means of an iron-based Fischer-Tropsch catalyst via multiple steps. The catalyst can be used in directly preparing aromatic compounds from the synthesis gas, especially light aromatic hydrocarbon compounds; the light aromatic hydrocarbons can have a selectivity of more than 75% in the hydrocarbons and a content of not less than 95% in the liquid phase product; and the catalyst has good stability and good industrial application prospects.
Inventors:
LIU XIAOHAO (CN)
XU YUEBING (CN)
JIANG FENG (CN)
LIU BING (CN)
LIU DAPENG (CN)
WANG TING (CN)
XU YUEBING (CN)
JIANG FENG (CN)
LIU BING (CN)
LIU DAPENG (CN)
WANG TING (CN)
Application Number:
PCT/CN2017/119419
Publication Date:
January 10, 2019
Filing Date:
December 28, 2017
Export Citation:
Assignee:
UNIV JIANGNAN (CN)
International Classes:
B01J23/78; B01J29/072; B01J23/889; B01J29/076; C07C1/04; C07C2/42; C07C15/04; C07C15/06; C07C15/08
Domestic Patent References:
| WO2002008163A1 | 2002-01-31 |
Foreign References:
| CN107349954A | 2017-11-17 | |||
| CN106215972A | 2016-12-14 |
Other References:
LI, JINJING ET AL.: "Direct conversion of syngas into hydrocarbons over a core-shell Cr-Zn@SiO2@SAPO-34 catalyst", CHINESE JOURNAL OF CATALYSIS, vol. 36, no. 7, 20 July 2015 (2015-07-20), pages 1131 - 1135, XP055323548
XIA, MIN: "The Synthesis of Mesoporous Fenton Composite Catalyst and Its Application in Organic Pollutants Degradation", SHANGHAI JIAO TONG UNIVERSITY DOCTOR'S THESES OF ENGINEERING, 31 May 2015 (2015-05-31), pages 86 - 88
XIA, MIN: "The Synthesis of Mesoporous Fenton Composite Catalyst and Its Application in Organic Pollutants Degradation", SHANGHAI JIAO TONG UNIVERSITY DOCTOR'S THESES OF ENGINEERING, 31 May 2015 (2015-05-31), pages 86 - 88
Attorney, Agent or Firm:
HARBIN SHINEIP INTELLECTUAL PROPERTY AGENCY CO.,LTD. (CN)
Download PDF:
Previous Patent: SIMULATION DEVICE FOR SWALLOWING FOOD
Next Patent: MULTILEVEL CELL THIN FILM TRANSISTOR MEMORY AND PREPARATION METHOD THEREFOR
Next Patent: MULTILEVEL CELL THIN FILM TRANSISTOR MEMORY AND PREPARATION METHOD THEREFOR