Iron-based catalyst for ft synthesis and preparation thereof

An iron-based catalyst and Fischer-Tropsch synthesis technology, applied in physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, and hydrocarbon production from carbon oxides, can solve the problem of low selectivity and achieve The effect of increasing the specific surface area and increasing the pore volume

Active Publication Date: 2008-06-18
CHINA PETROLEUM & CHEM CORP +1
View PDF1 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a new catalyst C5+ for the low selectivity of

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

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0018] When the catalyst contains a substrate, the preparation method of the catalyst further includes the step of introducing the substrate into the catalyst. As for the method of introducing the substrate, the present invention is not particularly limited. When there are optional water-soluble precursors (such as aluminum oxide precursor water-soluble aluminum-containing salt, silicon oxide precursor water glass, magnesium oxide precursor water-soluble magnesium salt, etc.), the preferred method can be In step (1) of the method, the water-soluble precursor of the matrix, the water-soluble iron-containing compound and the organic reducing agent are simultaneously mixed with water and dissolved into a mixed solution, or the water-soluble After the precursor of the matrix is ​​separately mixed with water and dissolved into a solution, the solution is introduced with the solution formed by mixing and dissolving the iron-containing compound, the organic reducing agent, and water; it ...

Example Embodiment

[0031] Example 1

[0032] Dissolve 50 grams of ferric nitrate, 2 grams of copper nitrate, and 5 grams of aluminum nitrate in deionized water to prepare a 70 ml solution; weigh urea [CO(NH 2 ) 2 , The same below] 32 grams, prepared into 50 ml solution; mix the two solutions and stir them evenly, put them in a muffle furnace and heat until fire and burn, the organic reducing agent is burned to obtain a fluffy foamy powder, and then at 500 ℃ and In the presence of air, the powder material was calcined in a muffle furnace for 3 hours to obtain catalyst A. The composition, specific surface area and pore volume of Catalyst A are listed in Table 1.

Example Embodiment

[0033] Example 2

[0034] Add 50 grams of ferric nitrate, 2 grams of manganese nitrate [Mn(NO 3 ) 2 ·6H 2 O], 5 grams of aluminum nitrate, dissolved in deionized water to make a 70 ml solution; weigh citric acid (C 6 H 8 O 7 ·H 2 O, the same below) 26 g, prepared into 50 ml solution; mix the two solutions and stir them evenly, put them in a muffle furnace and heat until they catch fire. After the organic reducing agent is burned, a fluffy foamy powder is obtained, and then heated at 500°C In the presence of air, the powder material was calcined in a muffle furnace for 4 hours to obtain catalyst B. The composition, specific surface area and pore volume of Catalyst B are listed in Table 1.

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

Disclosed is an iron-based catalyst for ft synthesis, containing ferrous metal components of useful quality. The catalyst is characterized in that the specific surface area of the catalyst is more than 255 squaremeters/g- 320 squaremeters/g and the pore volume is more than 0.45ml/g-0.7ml/g. the preparation method includes: (1) at least one iron-compound and at least one organic reducing agent are mixed or dissolved with water into solution; (2) the solution is heated to combustion under the oxygen-containing condition, so that organic reducing agent is burned up and a powder product is got; (3) in the presence of the air, the powder product is roasted at 100-1000DEG.C for 0.5-30 hours and then the catalyst provided by the invention is got. The catalyst can maintain relatively high reacting activity, as well as better selectivity for C5+.

Description

technical field [0001] The invention relates to a Fischer-Tropsch synthesis catalyst and a preparation method thereof, in particular to an iron-based Fischer-Tropsch synthesis catalyst and a preparation method thereof. Background technique [0002] Fischer-Tropsch synthesis refers to the conversion of synthesis gas (a mixture of carbon monoxide and hydrogen) into hydrocarbons in the presence of a catalyst. Catalysts suitable for the Fischer-Tropsch synthesis reaction are many, and these catalysts usually contain a metal component selected from iron, cobalt and ruthenium and an inert support. Among them, iron-based catalysts are cheap and easy to obtain, and have better sulfur tolerance than cobalt catalysts, and are especially suitable for the Fischer-Tropsch synthesis process of coal-to-synthesis gas. [0003] The introduction of other promoter metal components into iron-based catalysts can further adjust and improve catalyst performance. For example: the introduction of ...

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
IPC IPC(8): B01J23/78B01J23/83B01J23/86B01J23/70C07C1/04
Inventor 侯朝鹏夏国富孙霞王倩刘斌吴昊李明丰聂红李大东
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap