Catalyst for fischer-tropsch synthesized oil product hydrogen saturation and its preparing method and use

A Fischer-Tropsch synthesis and catalyst technology, applied in the petroleum industry, refined hydrocarbon oil, etc., can solve the problems of unsatisfactory hydrogenation saturation and low activity, and achieve the effects of reasonable structure, improved adsorption performance, and improved hydrogenation saturation activity

Active Publication Date: 2004-12-15
SYNFUELS CHINA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above catalysts have good hydrogenation and dearomatization properties for petroleum products, but they are not ideal for hydrogenation saturation of Fischer-Tropsch synthetic oils with high olefin content and a certain amount of oxygenates, and their activity is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] First, the γ-Al 2 o 3 The pellets were dried at 110°C, calcined at 500°C for 4 hours, at 500°C, WHSV=0.5h -1 Under the condition of water vapor treatment for 2 hours, the alumina carrier was obtained; 185.71g of the alumina carrier was weighed and added to TiCl 4 in ethanol solution (71.24g TiCl 4 +120.0ml ethanol), hydrolysis at room temperature, standing for 12 hours, drying at 110°C for 12 hours, and then roasting at 500°C for 4 hours to obtain TiO 2 -Al 2 o 3Composite carrier. Then, according to the equal volume impregnation method, ammonium metatungstate ((NH 4 ) 2 W 4 o 13 ·8H 2 O, 16.96g) and ammonium heptamolybdate ((NH 4 ) 6 Mo 7 o 24 4H 2 O, 7.36g) is prepared into a mixed aqueous solution of a certain concentration, and the TiO 2 -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 ...

Embodiment 2

[0037] γ-Al 2 o 3 The pellets were dried at 110°C, calcined at 500°C for 4 hours, and then baked at 450°C, WHSV=0.5h -1 Under the condition of water vapor treatment for 4 hours, the alumina carrier was obtained; 150.00g alumina carrier was weighed and added to Ti(OC 4 h 9 ) 4 in ethanol solution (170.43gTi(OC 4 h 9 ) 4 +252.0ml ethanol), hydrolysis at room temperature, standing for 15 hours, drying at 110°C for 12 hours, and then roasting at 480°C for 5 hours to obtain TiO 2 -Al 2 o 3 Carrier. Then, according to the equal volume impregnation method, ammonium metatungstate ((NH 4 ) 2 W 4 o 13 ·8H 2 O, 12.12g) and ammonium heptamolybdate ((NH 4 ) 6 Mo 7 o 24 4H 2 O, 24.53g) is formulated into a mixed aqueous solution of a certain concentration, and the TiO 2 -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 ...

Embodiment 3

[0040] Strip γ-Al 2 o 3 After drying at 110°C, calcining at 500°C for 4 hours, and then at 460°C, WHSV=0.3h -1 Under the condition of water vapor treatment for 4 hours, the alumina carrier was obtained; 50.00g of the alumina carrier was weighed and added to Ti(OC 4 h 9 ) 4 in ethanol solution (63.91gTi(OC 4 h 9 ) 4 +92ml ethanol), hydrolysis at room temperature, standing for 12 hours, drying at 120°C for 12 hours, and roasting at 520°C for 2 hours to obtain TiO 2 -Al 2 o 3 carrier. According to the equal volume impregnation method, ammonium metatungstate ((NH 4 ) 2 W 4 o 13 ·8H 2 O, 13.33g) and ammonium heptamolybdate ((NH 4 ) 6 Mo 7 o 24 4H 2 O, 8.59g) is prepared into a mixed aqueous solution of a certain concentration, and the TiO 2 -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 3 hours; according to the equal volume impregnation method, the above intermediate product ...

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Abstract

The catalyst consists of nickel oxide 5.0-18.0 wt%, tungsten carbide 1.0-11.0 wt%, molybdenum oxide 0.1-8.0 wt%, titania 1.5-19.0 wt% and alumina 44.0-92.4 wt%. The preparation process includes four steps of treatment of alumina, introducing titanium, soaking of tungsten, and introducing active nickel and molybdenum components. The catalyst has the features of high activity of hydrogenating and saturating oil synthesized via Fischer-Tropsch process, and is especially suitable for hydrogenating and saturating oil with high olefin content and certain amount of oxide.

Description

Technical field: [0001] The invention relates to a hydrogenation saturation catalyst, which is especially suitable for the hydrogenation saturation of Fischer-Tropsch synthetic oil products, as well as its preparation method and application. Background technique: [0002] Fischer-Tropsch synthetic oil is basically composed of straight-chain alkanes and olefins, but contains a certain amount of oxygen-containing compounds, the oxides of which account for less than 33wt% of the total, and the acid value is less than 30mgKOH / g. The existence of acidic oxygen-containing compounds severely corrodes equipment and is not conducive to the further processing and refining of synthetic oils. Therefore, appropriate methods must be used for hydrogenation and saturation of Fischer-Tropsch synthetic oils. At present, industrial oil hydrogenation catalysts are mainly aimed at petroleum and edible oils, while Fischer-Tropsch synthetic oils are different from petroleum and edible oils. The pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G45/00
Inventor 任杰王锋王雪锋陈满英李永旺
Owner SYNFUELS CHINA TECH CO LTD
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