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Title:
MONODISPERSED IRON-BASED CATALYST FOR FISCHER-TROPSCH PROCESS, PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2018/040798
Kind Code:
A1
Abstract:
Disclose are a monodispersed iron-based catalyst for the Fischer-Tropsch process, a preparation method therefor and the use thereof. The catalyst comprises a carrier, i.e. silicon dioxide and an active component, i.e. iron. The carrier, i.e. silicon dioxide has a mesoporous spherical particle structure, and the carrier, i.e. silicon dioxide covers the active component, i.e. iron. The active component, i.e. iron is of a nanoparticle shape and is distributed uniformly. The particle size of the carrier, i.e. silicon dioxide particle is 140 - 160 nm. In the preparation method therefor, the pressure of CO2 is adjusted, so that the morphology of the catalyst is changed from a disc-shaped stack into a uniform spherical shape. The iron nanoparticles are thus covered in the interior of the spherical silicon dioxide, sintering of the iron nanoparticles is prevented, and the appearance of an ingredient which is difficult to reduce is also avoided. The iron-based catalyst can be applied to a process route for preparing an α-olefin, wherein the α-olefin is directly synthesized by using a synthetic gas as a raw material under the action of the iron-based catalyst. The iron-based catalyst has a high selectivity for a long chain α-olefin.

Inventors:
GUO LI (CN)
CHEN JIANGANG (CN)
ZHANG YANFENG (CN)
JIN JIAQI (CN)
SHI YOULIANG (CN)
ZHENG SHENKE (CN)
GONG YAN (CN)
Application Number:
PCT/CN2017/094223
Publication Date:
March 08, 2018
Filing Date:
July 25, 2017
Export Citation:
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Assignee:
WUHAN KAIDI ENG TECH RES INST (CN)
International Classes:
B01J35/10; B01J23/745; B01J37/10; C10G2/00
Foreign References:
CN106391016A2017-02-15
CN103521240A2014-01-22
CN103949262A2014-07-30
CN1860161A2006-11-08
KR20110123051A2011-11-14
Other References:
See also references of EP 3508271A4
Attorney, Agent or Firm:
WUHAN KAIYUAN INTELLECTUAL PROPERTY AGENT LTD. (CN)
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