Catalyst for hydrogenation refining of Fischer-Tropsch synthetic oil, as well as preparation method and application thereof

A Fischer-Tropsch synthetic oil and hydrofining technology, which can solve problems such as unsatisfactory hydrogenation activity through selective hydrofinishing, chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, etc. , to improve thermal stability, high olefin catalytic hydrogenation and oxygenate hydrogenation removal activity, improve acidity and surface structure

Inactive Publication Date: 2013-07-10
YANKUANG ENERGY R&D CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These two catalysts have good hydrogenation performance for petroleum-based raw materials, but their hydrogenation activity for Fischer-Tropsch synthetic oil with high olefin content and a certain amount of oxygenates is not ideal

Method used

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  • Catalyst for hydrogenation refining of Fischer-Tropsch synthetic oil, as well as preparation method and application thereof
  • Catalyst for hydrogenation refining of Fischer-Tropsch synthetic oil, as well as preparation method and application thereof
  • Catalyst for hydrogenation refining of Fischer-Tropsch synthetic oil, as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Weigh 100g of powdery pseudo-boehmite, add 100mL of deionized water according to the water-powder ratio of 1:1, stir well, and knead for 20min. After the kneading is completed, a 3mm cylindrical extrusion head is used to extrude on the extruder. The extruded carrier was dried at 60°C for 2h and at 120°C for 4h. Then the dried carrier was put into a muffle furnace and calcined at 550° C. for 4 h. After calcining, grinding and sieving are carried out to obtain the carrier A of 20-40 mesh.

[0039]Weigh 10g of carrier A, and prepare a mixed aqueous solution with a certain concentration of 1.0979g of nickel nitrate and 4.2484g of ammonium metatungstate according to the equal-volume impregnation method, and slowly add it dropwise to carrier A, stir evenly, and immerse for 24 hours. The impregnated catalyst was dried at 60°C for 2h and at 120°C for 4h. Then the dried catalyst was put into a muffle furnace and calcined at 500°C for 4h. After calcining, sieving was carried ...

Embodiment 2

[0042] Weigh 95g of powdery pseudo-boehmite, add 5g of scallop powder, stir well, then add 100mL of deionized water according to the water-powder ratio of 1:1, stir well, and knead for 20min. After the kneading is completed, a 3mm clover-shaped extrusion head is used to extrude on the extruder. The extruded carrier was dried at 60°C for 2h and at 120°C for 4h. Then the dried carrier was put into a muffle furnace and calcined at 550° C. for 4 h. After calcining, grinding and sieving are carried out to obtain the carrier B of 20-40 mesh.

[0043] Weigh 10g of carrier B, and prepare a mixed aqueous solution with a certain concentration of 2.1079g of nickel nitrate and 3.2941g of ammonium metatungstate according to the equal-volume impregnation method, slowly add it dropwise to carrier B, stir evenly, and immerse for 24 hours. The impregnated catalyst was dried at 60°C for 2h and at 120°C for 4h. Then the dried catalyst was put into a muffle furnace and calcined at 500°C for 4h...

Embodiment 3

[0046] Weigh 95g of powdered pseudo-boehmite, add 5g of scallop powder, stir well, add 100mL of 2wt% nitric acid solution, stir well, and knead for 20min. After the kneading is completed, a 3mm cylindrical extrusion head is used to extrude on the extruder. The extruded carrier was dried at 60°C for 2h and at 120°C for 4h. Then the dried carrier was put into a muffle furnace and calcined at 550° C. for 4 h. After roasting, grind and sieve to obtain the carrier C of 20-40 mesh.

[0047] Weigh 10g of carrier C, and prepare a mixed aqueous solution with a certain concentration of 1.3812g of nickel nitrate and 3.6369g of ammonium metatungstate according to the equal-volume impregnation method, slowly add it dropwise to carrier C, stir evenly, and immerse for 36h. The impregnated catalyst was dried at 60°C for 2h and at 120°C for 4h. Then the dried catalyst was put into a muffle furnace and calcined at 500°C for 4h. After calcination, sieve was carried out to obtain catalyst C o...

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Abstract

The invention relates to a catalyst for hydrogenation refining of Fischer-Tropsch synthetic oil, as well as a preparation method and application thereof. Aluminum oxide is taken as a carrier, nickel and tungsten are taken as hydrogenation active components, and one or more of auxiliaries, such as titanium oxide, silicon oxide, zirconium oxide, fluorine, boron, phosphorus and the like are used. The preparation method of the catalyst comprises the following steps of: preparing the aluminum oxide carrier, modifying the carrier, and loading the metal active components. The prepared catalyst is used for hydrogenation refining of the Fischer-Tropsch synthetic oil. The catalyst disclosed by the invention is suitable for hydrogenation refining of oil products which have high content of olefins and further contain certain quantities of oxygen-containing compounds, in particular to hydrogen refining of low-temperature Fischer-Tropsch synthetic oil, and has the advantages of high hydrogenation activity of olefins, high removal rate of oxygen-containing compounds, good stability of the catalyst and the like.

Description

technical field [0001] The invention relates to a catalyst suitable for the hydrofinishing process of oil products with high olefin content and a certain amount of oxygen-containing compounds and a preparation method thereof, in particular to a catalyst used for the hydrofinishing of Fischer-Tropsch synthetic oil and a preparation method thereof and apply. Background technique [0002] As the world's oil resources are becoming increasingly scarce and crude oil prices are rising, research and development of new alternative energy sources are in the ascendant. The use of coal liquefaction to synthesize liquid fuels not only alleviates the current contradiction between energy supply and demand, but also promotes the diversification of national energy sources and the sustainable development of the economy. [0003] Fischer-Tropsch synthetic oil is basically composed of straight-chain alkanes and olefins, but contains a certain amount of oxygen-containing compounds, and has the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/888C10G45/08C10G45/38
Inventor 孙启文刑宪军张宗森杨正伟
Owner YANKUANG ENERGY R&D CO LTD
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