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Hydrotreating catalyst, preparation method and applications thereof, and hydrotreating method of distillate oil

A technology for hydrorefining and catalyst, applied in organic compound/hydride/coordination complex catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of high catalytic activity, low activity, small pore size, etc. , to achieve the effect of shortening the process, reducing emissions, and achieving green manufacturing

Active Publication Date: 2019-05-07
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the problems of small pore size and low activity of hydrofinishing catalysts in the prior art, and provide a hydrofinishing catalyst, the pore volume of the pore diameter of the hydrofinishing catalyst accounts for 2% of the total pore volume The proportion is 0.5-30%, and the catalytic activity is high

Method used

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Embodiment approach

[0037] The inventors of the present invention also found in the process of research that by introducing at least one modifying element selected from fluorine, silicon, zirconium, titanium, boron, magnesium, calcium and zinc into the conventional catalyst carrier, it can effectively improve Performance of hydrofining catalysts. Therefore, as long as the modifying element is introduced into the catalyst, the activity of the catalyst can be improved, and there is no particular limitation on the added amount. According to a preferred embodiment of the present invention, based on the dry basis weight of the inorganic refractory component, the content of the modifying element is 0.2-15% by weight, and the balance is alumina. More preferably, based on the dry basis weight of the inorganic refractory component, the content of the modifying element is 0.4-10% by weight, and the balance is alumina.

[0038] According to a preferred embodiment of the present invention, the inorganic ref...

Embodiment 1

[0078] This embodiment is used to illustrate the hydrorefining catalyst provided by the present invention and its preparation method

[0079] (1) Pseudo-boehmite (pseudo-boehmite powder produced by Changling Catalyst Factory, with a specific surface area of ​​320m 2 / g, the average pore diameter is 13nm, the pore volume with a pore diameter of 2-4nm accounts for 10% of the total pore volume, and the pore volume with a pore diameter of 4-40nm accounts for 78% of the total pore volume), magnesium hydroxide powder is mixed uniform, and then fired at 500°C for 8 hours to obtain an inorganic refractory component.

[0080] Wherein, based on the dry basis weight of the inorganic refractory component, the content of magnesium oxide is 2.9% by weight, and the content of aluminum oxide is 97.1% by weight.

[0081] (2) A certain amount of MoO 3 Add basic cobalt carbonate and propanol into the aqueous solution containing phosphoric acid respectively, and dissolve completely under heatin...

Embodiment 2

[0088] This embodiment is used to illustrate the hydrorefining catalyst provided by the present invention and its preparation method

[0089] (1) Pseudo-boehmite (pseudo-boehmite powder produced by Changling Catalyst Factory, with a specific surface area of ​​320m2 / g, the average pore diameter is 13nm, the pore volume with a pore diameter of 2-4nm accounts for 10% of the total pore volume, and the pore volume with a pore diameter of 4-40nm accounts for 78% of the total pore volume), the silica sol is uniformly mixed, Then it is fired at 600°C for 5 hours to obtain an inorganic refractory component.

[0090] Wherein, based on the dry basis weight of the inorganic refractory component, the content of silicon oxide is 10.0% by weight, and the content of aluminum oxide is 90.0% by weight.

[0091] (2) A certain amount of MoO 3 , basic nickel carbonate, and ethylene glycol were respectively added to the aqueous solution containing phosphoric acid, heated and stirred until complet...

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PUM

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Abstract

The invention relates to the field of hydrorefining catalysts, and discloses a hydrotreating catalyst, a preparation method and applications thereof, and a hydrotreating method of distillate oil. Thecatalyst contains an inorganic refractory component, an active component, an alcohol and a carboxylic acid, and has pore sizes of 4-40 nm and 100-300 nm, wherein the pore volume of the pores with thepore size of 4-40 nm accounts for 60-95% of the total pore volume, the pore volume of the pores with the pore size of 100-300 nm accounts for 0.5-30% of the total pore volume, and the inorganic refractory component contains at least one selected from fluorine, silicon, zirconium, titanium, boron, magnesium, calcium and zinc, and aluminum oxide. The preparation method comprises: mixing a precursorcontaining at least one selected from fluorine, silicon, zirconium, titanium, boron, magnesium, calcium and zinc, and an alumina precursor, and calcining to obtain an inorganic refractory component; and mixing an alcohol, a carboxylic acid and an active component precursor to obtain an immersion liquid, mixing the immersion liquid and the inorganic refractory component, molding, and drying. According to the present invention, the catalyst has the pore size of 100-300 nm, and has good performance, and the preparation process is shortened.

Description

technical field [0001] The invention relates to the field of hydrofinishing catalysts, in particular to a hydrofinishing catalyst, a method for preparing a hydrofining catalyst and a hydrofining catalyst prepared by the method, and the hydrofining catalyst is used in distillate oil hydrofining The application in, and a kind of hydrofinishing method of distillate oil. Background technique [0002] Hydroprocessing is a pillar technology in the modern oil refining industry, which plays an important role in producing clean fuels, improving product quality, making full use of petroleum resources and raw material pretreatment. With the development of economy, environmental protection and society, oil refining companies have continuously put forward higher requirements for the activity and stability of hydrotreating catalysts, and the activity and selectivity of hydrotreating catalysts need to be continuously improved. Among them, hydrodesulfurization activity is an important inde...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/34B01J31/38B01J35/10C10G45/04C10G45/08
Inventor 陈文斌龙湘云李明丰聂红李大东刘学芬刘清河王轶凡鞠雪艳
Owner CHINA PETROLEUM & CHEM CORP