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Hydrotreating catalyst, preparation method and application thereof

A hydroprocessing and catalyst technology, applied in the field of catalysis, can solve the problems of limited effect and limited catalytic performance of catalysts, etc.

Pending Publication Date: 2020-11-20
CNOOC OIL & PETROCHEMICALS CO LTD +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, the researchers of the present invention found in the research that in the aforementioned existing research methods, the actual effect of Mg is limited, and thus the effect of improving the catalytic performance of the catalyst is also limited.

Method used

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  • Hydrotreating catalyst, preparation method and application thereof
  • Hydrotreating catalyst, preparation method and application thereof

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preparation example Construction

[0060] In yet another aspect, according to yet another embodiment of the present invention, a method for preparing a hydroprocessing catalyst is provided, the method comprising the steps of:

[0061] The carrier is uniformly mixed with the solutions of the Ni-containing compound, the Mo-containing compound and the W-containing compound to obtain the mixture A, which is dried or calcined to obtain the hydrogenation treatment catalyst.

[0062] In some preferred examples, the W-containing compound is selected from one or more of ammonium tungstate, ammonium metatungstate, ammonium paratungstate, and ethyl ammonium metatungstate; the Ni-containing compound is a water-soluble salt of Ni, It is preferably one or more of Ni nitrate, acetate, carbonate, and basic carbonate; the Mo-containing compound is selected from one of molybdenum trioxide, ammonium paramolybdate, and sodium molybdate. species or several.

[0063] In yet another preferred example, the mixing method is joint impr...

Embodiment 1

[0085] The present embodiment is the carrier of preparation catalyst, comprises the following steps:

[0086] (1) Take 200g of γ-Al 2 o 3 After the powder was fully mixed with 2100mL magnesium nitrate hexahydrate solution containing 54g, it was dried at 120°C for 3h to obtain γ-Al containing Mg 2 o 3 pink. 200g γ-Al containing Mg 2 o 3 The powder is saturately soaked in 192 mL of aqueous solution containing 30 g of glycerol, dried at 120° C., and roasted in a nitrogen atmosphere at 215° C. for 3 hours (the C element content in the powder is 5.3 wt%).

[0087] (2) Mix 200g of the above powder with 100g of pseudo-boehmite in a mass ratio of 2:1. Then in the mixed powder, add 9g of Selina powder, mix evenly, weigh 8.4mL of nitric acid and water to make 204mL solution, add this solution to the mixed powder under stirring, knead, extrude into clover with a diameter of 1.6mm Shaped wet strips, followed by drying the wet strips at 120°C for 3h, and then firing at 600°C to obta...

Embodiment 2

[0089] The present embodiment is the carrier of preparation catalyst, comprises the following steps:

[0090] (1) Take 200g of γ-Al 2 o 3 powder, mixed with 460mL of magnesium-containing solution containing 64.7g of magnesium nitrate hexahydrate, and then dried at 130°C for 3 hours to obtain Mg-containing γ-Al 2 o 3 pink. The above 200g of γ-Al containing Mg 2 o 3 The powder was impregnated saturated in 134 mL aqueous solution containing 30 g of glycerol, dried at 120° C., and calcined in a nitrogen atmosphere at 215° C. for 2.5 hours (the carbon content in the powder was 5.3 wt%).

[0091] (2) Mix 200g of the above powder with 66.7g of pseudo-boehmite at a mass ratio of 3:1. Then in the mixed powder, add 8g of Selina powder, mix evenly, weigh 8.2mL of nitric acid and water to make 187mL solution, add this solution to the mixed powder under stirring, knead and extrude to make clover with a diameter of 1.6mm Shaped wet strips, followed by drying the wet strips at 120°C f...

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Abstract

The invention discloses a hydrotreating catalyst, which comprises a metal active component and a carrier for loading the metal active component, wherein the metal active component comprises WO3, NiO and MoO3, the structure of the carrier comprises MgO and a metal oxide matrix containing pore channels, MgO is uniformly dispersed in the metal oxide matrix containing pore channels, and at least mostMgO is uniformly dispersed on the surfaces of the pore channels of the metal oxide matrix containing pore channels. The hydrotreating catalyst has high desulfurization, denitrification and hydrogenation saturation properties at the same time, is suitable for various distillate hydrotreating processes, and is especially suitable for a hydrofining process aiming at desulfurization, hydrogenation denitrification and hydrogenation saturation. The invention also discloses a preparation method and application of the hydrotreating catalyst.

Description

technical field [0001] The invention relates to the technical field of catalysis. More specifically, it relates to a hydrotreating catalyst and its preparation method and application. Background technique [0002] With the intensification of heavy and inferior crude oil in the world and the continuous upgrading of oil product quality standards, in the face of the gradually popularized production of National VI standard oil products, while maintaining the processing and production of ultra-low sulfur gasoline and diesel (<10ppm), refiners, It is also necessary to further reduce the content of unsaturated hydrocarbons such as olefins, aromatics, and benzene in oil products. For the oil refining industry, improving the activity of hydrogenation catalysts is undoubtedly the most economical way to ensure that multiple product indicators meet environmental protection indicators. [0003] From the perspective of the reaction mechanism of the hydrogenation process, the higher t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/888B01J35/02C10G45/08B01J35/00
CPCB01J23/8885B01J23/002C10G45/08B01J2523/00C10G2300/202B01J35/40B01J2523/22B01J2523/31B01J2523/68B01J2523/69B01J2523/847
Inventor 辛靖曹孙辉韩龙年陈禹霏吴颖高杨赵晨曦王宁张萍
Owner CNOOC OIL & PETROCHEMICALS CO LTD
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