Supercharge Your Innovation With Domain-Expert AI Agents!

A kind of high activity Fischer-Tropsch synthesis catalyst and its preparation method and application

A Fischer-Tropsch synthesis and catalyst technology, which is applied in chemical instruments and methods, preparation of liquid hydrocarbon mixtures, physical/chemical process catalysts, etc., can solve the problem of low catalyst activity, achieve CO2 selectivity reduction, suppress WGS reaction, and increase the strength Enhanced effect

Active Publication Date: 2018-04-27
SYNFUELS CHINA INNER MONGOLIA CO LTD
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method is not suitable for the preparation of highly active Fe-based Fischer-Tropsch synthesis catalysts, because the Fe-based catalysts prepared by the impregnation method will have a strong iron-support interaction, resulting in very low catalyst activity

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of high activity Fischer-Tropsch synthesis catalyst and its preparation method and application
  • A kind of high activity Fischer-Tropsch synthesis catalyst and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] Fe(NO 3 ) 3 9H 2 O reagent 30kg, adding deionized water to prepare a 30% nitrate solution. Take Cu(NO 3 ) 2 ·3H 2 O reagent 0.788kg, La(NO 3 ) 3 ·6H 2 O reagent 1.293kg, add deionized water to prepare a mixed solution of the precursor of 20% auxiliary agent A, get the carrier auxiliary agent after mixing 6.963kg of silica sol with a concentration of 10% and 6.635kg of aluminum sol with a concentration of 10% Precursor solution of B. Add the mixed solution of the precursor of auxiliary agent A and the precursor solution of auxiliary agent B to the nitrate solution in sequence, and mix well. Adjust the temperature of the mixed solution to 80°C, prepare an ammonia solution with a concentration of 20%, and adjust the temperature of the ammonia solution to 40°C. Turn on the stirring and ultrasonic device of the synthesis reactor, and control the ultrasonic frequency to 50kHz. The mixed solution and alkali solution are fed into the synthesis reactor concurrently. ...

Embodiment 2

[0066] Fe(NO 3 ) 3 9H 2 O reagent 30kg, adding deionized water to prepare a nitrate solution with a concentration of 20%. Take Ce(NO 3 ) 3 ·6H 2 O reagent 0.771kg, Mg(NO 3 ) 2 ·6H 2 O reagent 1.750kg, adding deionized water to prepare a mixed solution of the precursor of the structural aid A with a concentration of 20%, taking a concentration of 20% silica sol 1.441kg and a concentration of 15% zirconium sol 8.294kg mixed to obtain a carrier Precursor solution of Adjuvant B. Add the mixed solution of the precursor of auxiliary agent A and the precursor solution of auxiliary agent B to the nitrate solution in sequence, and mix well. Adjust the temperature of the mixed solution to 40°C, prepare an ammonia solution with a concentration of 10%, and adjust the temperature of the ammonia solution to 30°C. Turn on the stirring and ultrasonic device of the synthesis reactor, and control the ultrasonic frequency to 20kHz. The mixed acid solution and alkali solution are fed i...

Embodiment 3

[0068] Fe(NO 3 ) 3 9H 2 O reagent 30kg, adding deionized water to prepare a 35% nitrate solution. Take the concentration of 50% Mn(NO 3 ) 2 Solution 1.621kg, Mg(NO 3 ) 2 ·6H 2O reagent 3.062kg, add deionized water to prepare a mixed solution of the precursor of 10% auxiliary agent A, get a concentration of 30% silica sol 3.318kg and a concentration of 20% zirconium sol 5.320kg after mixing to obtain a carrier auxiliary agent Precursor solution of B. Add the mixed solution of the precursor of auxiliary agent A and the precursor solution of auxiliary agent B to the nitrate solution in sequence, and mix well. Adjust the temperature of the mixed solution to 50°C, prepare an ammonia solution with a concentration of 20%, and adjust the temperature of the ammonia solution to 40°C. Turn on the stirring and ultrasonic device of the synthesis reactor, and control the ultrasonic frequency to 30kHz. The mixed acid solution and alkali solution are fed into the synthesis reactor c...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a high-activity Fischer-Tropsch synthesis catalyst and a preparation method and application thereof. The preparation method includes the steps that a precursor solution of a structure assistant A and a carrier assistant B is mixed with a ferric nitrate solution; the mixture and ammonium hydroxide are mixed under the stirring ultrasonication in a parallel flow mode to be coprecipitated, the reaction system continues to be subjected to ultrasonic treatment in the stirring state, and slurry formed through coprecipitation is obtained; the slurry is washed with deionized water and subjected to filter pressing, and a filter cake is obtained; the filter cake and deionized water are mixed and stirred to be pasty and then subjected to circulating ultrasonic emulsification for 10-60 min so that the filter cake can be emulsified, a precursor solution of an electron assistant C is added, circulating ultrasonic emulsification continues to be performed for 10-60 min, and pre-spray slurry is obtained; spray drying is performed; roasting is performed. Dispersion of particles of newly-generated products can be promoted by introducing the ultrasonication into the coprecipitation process, so that the degree of crystallinity of the newly-generated products is reduced, and the number of active sites is increased; meanwhile, dispersion of the assistants is promoted due to the ultrasonication, so that the action of the assistants and active components is enhanced, and reaction performance is improved.

Description

technical field [0001] The invention belongs to the technical field of catalyst preparation, and in particular relates to a high-activity Fischer-Tropsch synthesis catalyst and its preparation method and application. Background technique [0002] The Fischer-Tropsch synthesis process refers to the process of converting synthesis gas (hydrogen and carbon monoxide) into hydrocarbon products under the action of a catalyst. Iron-based Fischer-Tropsch synthesis catalysts with iron as the active component are suitable for large-scale industrial applications due to their low price, high activity, and wide application range. The main goal of catalyst research and development is to continuously improve the reaction performance of catalysts to achieve the production of more oil products with as few catalysts as possible. In order to achieve the improvement of catalyst performance, researchers have made many attempts. For example: improve reaction performance by adding noble metal ad...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/83B01J23/889B01J23/86C10G2/00
CPCB01J23/83B01J23/868B01J23/8892B01J2523/00C10G2/332B01J2523/842B01J2523/17B01J2523/3706B01J2523/13B01J2523/31B01J2523/41B01J2523/3712B01J2523/22B01J2523/48B01J2523/72B01J2523/67
Inventor 王洪青明王珏白云坡王有良任丽荣杨勇李永旺
Owner SYNFUELS CHINA INNER MONGOLIA CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com