Ti-doped Fe oxide residual oil suspended bed hydrocracking catalyst as well as preparation method and application thereof

A hydrocracking and suspension bed technology, applied in the direction of metal/metal oxide/metal hydroxide catalyst, catalyst activation/preparation, physical/chemical process catalyst, etc., can solve the problem of weak hydrogenation activity and achieve oil quality The effect of quality improvement and yield reduction

Pending Publication Date: 2022-04-29
FUZHOU UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a preparation method of a Ti-doped Fe oxide residue suspension bed hydrocracking catalyst, which overcomes the weak hydrogenation activity of Fe oxide catalysts

Method used

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  • Ti-doped Fe oxide residual oil suspended bed hydrocracking catalyst as well as preparation method and application thereof
  • Ti-doped Fe oxide residual oil suspended bed hydrocracking catalyst as well as preparation method and application thereof
  • Ti-doped Fe oxide residual oil suspended bed hydrocracking catalyst as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) 54.06 g FeCl at room temperature 3 ·6H 2 O，4.80 gTi(SO 4 ) 2 And 400 ml deionized water were added into the beaker and stirred with a magnetic stirrer for 1 h at a stirring speed of 800 R / min.

[0029] (2) Dilute the ammonia water with a mass fraction of 25% three times, keep the solution obtained in step (1) stir violently, drop the diluted ammonia water one by one, and a reddish brown floccule appears after a certain time. When the pH value of the solvent reaches 8, stop dropping ammonia water.

[0030] (3) Seal the beaker containing the solution in step (2) and let it stand at room temperature for 24 hours.

[0031] (4) Transfer the precipitate prepared in step (3) to the suction flask, filter and wash with deionized water until the pH test paper detects that the filtrate is neutral, and the silver nitrate solution detects that the filtrate has no precipitation.

[0032] (5) The precipitate prepared in step (4) is dried at 110 ℃ for 24 hours, ground into powder, pl...

Embodiment 2

[0036] (1) 80.80 GFE (no) at room temperature 3 ) 3 ·9H 2 O，2.40 gTi(SO 4 ) 2 And 400ml deionized water were added into the beaker and stirred with a magnetic stirrer for 1 h at a stirring speed of 600 R / min.

[0037] (2) Dilute the ammonia water with a mass fraction of 25% three times, keep the solution obtained in step (1) stir violently, drop the diluted ammonia water one by one, and a reddish brown floccule appears after a certain time. When the pH value of the solvent reaches 8, stop dropping ammonia water.

[0038] (3) Seal the beaker containing the solution in step (2) and let it stand at room temperature for 24 hours.

[0039] (4) Transfer the precipitate prepared in step (3) to the suction flask, filter and wash with deionized water until the pH test paper detects that the filtrate is neutral, and the silver nitrate solution detects that the filtrate has no precipitation.

[0040] (5) The precipitate prepared in step (4) is dried at 110 ℃ for 24 hours, ground into powde...

Embodiment 3

[0043] (1) 54.06 g FeCl at room temperature 3 ·6H 2 O，7.59 gTiCl 4 And 400 ml deionized water were added into the beaker and stirred with a magnetic stirrer for 1 h at a stirring speed of 800 R / min.

[0044] (2) Dilute the ammonia water with a mass fraction of 25% three times, keep the solution obtained in step (1) stir violently, drop the diluted ammonia water one by one, and a reddish brown floccule appears after a certain time. When the pH value of the solvent reaches 8, stop dropping ammonia water.

[0045] (3) Seal the beaker containing the solution in step (2) and let it stand at room temperature for 24 hours.

[0046] (4) Transfer the precipitate prepared in step (3) to the suction flask, filter and wash with deionized water until the pH test paper detects that the filtrate is neutral, and the silver nitrate solution detects that the filtrate has no precipitation.

[0047] (5) The precipitate prepared in step (4) is dried at 110 ℃ for 24 hours, ground into powder, placed ...

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Abstract

The invention belongs to the technical field of petroleum processing, and particularly relates to a Ti-doped Fe oxide catalyst, a preparation method thereof and application of the Ti-doped Fe oxide catalyst in residual oil suspended bed hydrocracking. The Fe-based residual oil suspended bed hydrocracking catalyst with good performance is prepared by adopting an inorganic iron source and an inorganic titanium source, taking ammonia water or a sodium hydroxide solution as a precipitator and adopting a coprecipitation method. The synthesis process is green and simple, the operation is convenient, the cost is low, the obtained catalyst has a mesoporous structure, compared with a catalyst without a Ti source, the catalyst has larger pore volume and specific surface area, a good application effect can be shown in a residual oil suspended bed hydrocracking reaction only with a small dosage, and the method is suitable for industrial production. The quality of a residual oil hydrocracking product is obviously improved, and the method has a good industrial application prospect.

Description

technical field [0001] The invention belongs to the technical field of residue suspension bed hydrocracking catalyst, and relates to a Ti doped Fe oxide residue suspension bed hydrocracking catalyst and its preparation method and application, in particular to a preparation method of mesoporous iron titanium composite oxide catalyst. Background technology [0002] With the progress of society and the development of the times, the global demand for fossil fuels is increasing. At present, the light fraction of most crude oil produced in China is small, and the fraction greater than 500 ℃ accounts for 40-50% of the crude oil, and it continues to become heavier. In addition, the density, sulfur content, asphaltene and residual carbon value of crude oil are increasing, and the deterioration of crude oil is increasing. China's demand for high-value petroleum products such as gasoline, middle distillate oil and lubricating oil is increasing, while the demand for low-value products such a...

Claims

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Application Information

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IPC IPC(8): B01J23/745B01J35/10B01J37/03C10G47/02C10G47/26
CPCB01J23/745B01J23/002B01J37/031C10G47/02C10G47/26B01J35/613B01J35/633B01J35/615B01J35/647
Inventor 鲍晓军钱叶归崔勍焱王廷海岳源源朱海波
Owner FUZHOU UNIV
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