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Catalyst for hydrogenation of Fischer-Tropsch synthesis oil, preparation method as well as application thereof

A hydrogenation catalyst and Fischer-Tropsch synthetic oil technology, which is applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc., can solve corrosion equipment, unfavorable synthetic oil processing, etc. question

Active Publication Date: 2010-06-16
SYNFUELS CHINA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the presence of acidic oxygen-containing compounds, severe corrosion of equipment is not conducive to further processing of synthetic oils

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] First, the γ-Al 2 o 3 The carrier was dried at 110°C and calcined at 500°C for 4 hours. Take by weighing 85g alumina carrier, then according to equal volume impregnation method, ammonium heptamolybdate ((NH 4 ) 6 Mo 7 o 24 4H 2 O, 6.10g) is prepared into a mixed aqueous solution of a certain concentration, and the Al 2 o 3 The carrier was added to the above solution, immersed for 12 hours, dried at 110°C for 12 hours, and roasted at 480°C for 4 hours; according to the equal volume impregnation method, the above intermediate product was added to nickel nitrate (Ni(NO 3 ) 2 ·6H 2 O, 38.90g) impregnated for 12 hours, dried at 110°C for 12 hours, and calcined at 500°C for 3 hours to obtain Ni / Mo / Al 2 o 3 catalyst. Its weight percent composition ratio is: NiO: MoO 3 :Al 2 o 3 =10:5:85.

[0084] Weigh 20g Ni / Mo / Al 2 o 3 The catalyst (20 mesh to 40 mesh) is placed in a continuous flow fixed bed reactor. First, it was reduced in a hydrogen atmosphere at 420°C...

Embodiment 2

[0086] First, the powdered Al 2 o 3 Al 2 o 3 Powder; weigh the above Al 2 o 3 100g of powder and 6.13g of metatitanic acid powder, add 3g of sage greens powder, mix thoroughly, add 50ml of 5wt% dilute nitric acid solution, knead for one hour, extrude, and bake at 450-580°C for 3-6 hours, Available TiO 2 -Al 2 o 3 Composite carrier;

[0087] Take by weighing 84g titania-alumina carrier, then according to equal volume impregnation method, ammonium metatungstate ((NH 4 ) 2 W 4 o 13 ·8H 2 O, 4.85g), prepared into a mixed aqueous solution of a certain concentration, the TiO 2 -Al 2 o 3 The composite carrier was added to the above solution, immersed for 12 hours, dried at 110°C for 12 hours, and roasted at 480°C for 4 hours; according to the equal volume impregnation method, the above intermediate product was added to nickel nitrate (Ni(NO 3 ) 2 ·6H 2 O, 38.90g), lanthanum nitrate (La(NO 3 ) 3 .6H 2 O, 5.31) in an aqueous solution, soaked for 12 hours, dried at ...

Embodiment 3

[0090] First, the γ-Al 2 o 3 The carrier is dried at 110°C, calcined at 500°C for 4 hours, at 500°C, WHSV=0.5h -1 Under certain conditions, steam treatment for 2 hours to obtain the desired alumina carrier.

[0091] Take by weighing 75g alumina carrier, then according to equal volume impregnation method, ammonium heptamolybdate ((NH 4 ) 6 Mo 7 o 24 4H 2 O, 14.7g) is prepared into a mixed aqueous solution of a certain concentration, and the Al 2 o 3 The carrier was added to the above solution, immersed for 12 hours, dried at 110°C for 12 hours, and roasted at 480°C for 4 hours; according to the equal volume impregnation method, the above intermediate product was added to nickel nitrate (Ni(NO 3 ) 2 ·6H 2 O, 42.80g), phosphoric acid (H 3 PO 4 , 2.76g) in an aqueous solution, soaked for 12 hours, dried at 110°C for 12 hours, and fired at 500°C for 3 hours to obtain Ni / Mo / P / Al 2 o 3 catalyst. Its weight percent composition ratio is: NiO: MoO 3 :P 2 o 5 :Al 2 o ...

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Abstract

The invention relates to a catalyst for hydrogenation of Fischer-Tropsch synthesis oil, which is characterized in that lanthanide metal lanthanum and / or cerium, and / or non-metallic element phosphorus and / or boron and / or fluorine which are used as cocatalysts are added into active component nickel and tungsten and / or molybdenum, and the catalyst comprises the following components in percentage by weight: 10-18% of nickel oxide, 1-20% of tungsten oxide or molybdenum oxide, 0-15% of silicon oxide and / or titanium oxide; 0-10% of lanthanum oxide and / or cerium oxide; 0-10% of phosphorus pentoxide and / or boron oxide and / or fluorine oxide and 35-89% of aluminum oxide. The preparation method of the catalyst comprises the steps of preparing carriers, soaking active components and adding cocatalyst components. The catalyst of the invention is suitable for the hydrogenation process of oil products having high olefin content and containing a certain amount of oxygen compounds, is especially suitable for hydrogenation of Fischer-Tropsch synthesis oil products, and has the advantages of high hydrogenation activity, good catalyst stability and the like.

Description

technical field [0001] The invention relates to a hydrogenation catalyst, which is suitable for the hydrogenation process of oil products with high olefin content and a certain amount of oxygen compounds, and is especially suitable for the hydrogenation of Fischer-Tropsch synthetic oil to produce high-quality naphtha fractions and high cetane number Diesel fraction and lubricating oil base oil with high viscosity index; the invention also relates to the preparation method and application of the catalyst. Background technique [0002] With the increase in demand for petroleum-based liquid fuels, the dwindling of petroleum resources, and the continuous improvement of environmental protection requirements, the development of environmentally friendly alternative fuels has attracted widespread attention from various countries. One of the most concerned technologies in industry. Fischer-Tropsch synthetic crude oil is composed of straight-chain alkanes, olefins and a certain amoun...

Claims

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Application Information

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IPC IPC(8): B01J23/888B01J23/883B01J23/887B01J27/188C10G45/08
Inventor 任杰张怀科崔民利李永旺
Owner SYNFUELS CHINA TECH CO LTD
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