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Preparation method of hydrogenation catalyst

A hydrotreating and catalyst technology, applied in physical/chemical process catalysts, chemical instruments and methods, organic compound/hydride/coordination complex catalysts, etc. Action, performance improvement, and aggregation-suppressing effect

Active Publication Date: 2008-10-08
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is found through experiments that different preparation processes have a greater impact on the activity of the catalyst, and the activity of the catalyst prepared by the above method still needs to be further improved.

Method used

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  • Preparation method of hydrogenation catalyst
  • Preparation method of hydrogenation catalyst
  • Preparation method of hydrogenation catalyst

Examples

Experimental program
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Effect test

preparation example Construction

[0014] In the preparation process of the catalyst of the present invention, the organic compound additive is loaded on the catalyst carrier first, so that the organic compound and the carrier form a certain combination, and then during and / or after the carrier loaded with the organic compound additive is combined with the active metal, The organic compound additive is added again to improve the dispersibility of the active metal component and further improve the performance of the catalyst.

[0015] A kind of concrete preparation process of catalyst of the present invention comprises the following steps:

[0016] 1. Preparation of porous carrier;

[0017] 2. impregnating the carrier described in step 1 with the organic compound additive solution;

[0018] 3. Drying the carrier carrying the organic additive described in step 2 at a condition lower than the calcination temperature;

[0019] 4. During and / or after combining the dried organic matter-loaded carrier described in s...

Embodiment 1

[0039] The catalyst is prepared using ethylene glycol.

[0040] Reference catalyst CA was prepared as follows. Catalysts were prepared using gamma-alumina carrier ZT (1.2mm, clover) with the following properties:

[0041] Pore ​​volume: 0.75mL / g

[0042] Specific surface area: 320m 2 / g

[0043] Bulk density: 0.55g / mL

[0044] The gamma-alumina carrier was impregnated with an equal volume of aqueous impregnating solution containing an appropriate amount of molybdenum trioxide, nickel carbonate and phosphoric acid, and the impregnated carrier was dried at 100°C for 16 hours, and then the dried strip was calcined at 470°C for 3 hours in an air atmosphere. The prepared catalyst contains 12(w)% molybdenum (calculated as oxide), 3.2(w)% nickel (calculated as oxide) and 2(w)% phosphorus (calculated as P 2 o 5 count).

[0045] Catalyst BA of the present invention is to impregnate carrier ZT with equal volume of aqueous solution containing appropriate amount of ethylene glycol,...

Embodiment 2

[0060] Diethylene glycol was used to prepare the catalyst.

[0061] Diethylene glycol was used as an organic compound additive. The preparation method was repeated in Example 1.

[0062] According to the method described in Example 1, the catalyst was presulfided and evaluated for activity. The results are listed in Table 4.

[0063] Table 4 Catalyst Preparation Conditions and Activity Evaluation Results of Example 2

[0064]

[0065] Seen from Table 4, also, the present invention is obviously higher than the reference catalyst.

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Abstract

The present invention relates to a preparation method for a hydrotreating catalyst. The present invention firstly loads a proper organic compound addition agent on the carrier of a catalyst, then loads active metal components and induces an organic compound simultaneously or after loading the active metal components and carries out drying in the preparation process of the catalyst, but no baking process is carried out. Compared with the prior art, the method provided by the present invention effectively improves the surface property of the carrier after inducing the organic compound addition agent on the carrier of the catalyst and is beneficial to the dispersing and activation of the active metals, thus further improving the using property of the catalyst. The hydrotreating catalyst prepared by the present invention can be used for various hydrotreating catalyst processes.

Description

technical field [0001] The invention relates to a preparation method of a hydrogenation treatment catalyst, in particular to a preparation method of a high activity hydrogenation treatment catalyst. Background technique [0002] Crude oil and distillates derived from crude oil contain impurities such as sulfur, nitrogen, oxygen and metals. The existence of these impurities not only affects the stability of the oil, but also emits SO during use. X , NO X and other harmful gases pollute the environment. During the secondary processing of oil products, the presence of impurities such as sulfur, nitrogen, oxygen and metals can poison catalysts. Therefore, removing the above-mentioned impurities is an important process in oil processing. Distillate oil hydrotreating refers to the process of contacting raw oil and hydrogen with a catalyst at a certain temperature and pressure to remove impurities and saturate aromatics. [0003] Typical hydrotreating catalysts are metal oxide...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/02B01J31/26
Inventor 姜虹彭绍忠杨占林刘雪玲
Owner CHINA PETROLEUM & CHEM CORP
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