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Method for preparing hydrogenation catalyst composition

A hydrogenation catalyst and composition technology, which are applied in the directions of catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc. Active, uniform grain size effect

Active Publication Date: 2012-05-16
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] Aiming at the deficiencies of the prior art, the present invention provides a method for preparing a hydrogenation catalyst composition, especially a clean preparation method, while solving the problem of difficulty in forming a bulk catalyst. The catalyst has a large specific surface area and uniform pore distribution, Good physical and chemical properties such as high effective utilization rate of active metal components, large pore volume is conducive to the entry and exit of large hydrocarbon molecules, can process heavier raw materials, and can be used in hydrodesulfurization and hydrodenitrogenation reactions, especially for In the ultra-deep desulfurization reaction to produce ultra-clean diesel

Method used

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  • Method for preparing hydrogenation catalyst composition
  • Method for preparing hydrogenation catalyst composition

Examples

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Embodiment 1

[0030] Add 500mL of water to the dissolution tank 1, add 40g of nickel chloride and 46g of ammonium metatungstate respectively to dissolve, prepare acidic working solution A, add 500mL of water to the dissolution tank 2, then add 30g of sodium metaaluminate to dissolve, and prepare alkali Sex Work Solution B. Add 350mL of water into the reaction tank, and the temperature rises to 45°C. Under stirring, solution A, solution B and CO 2 And flow into the reaction tank to form a gel, CO 2 The concentration is 40v%, the gelling temperature is 45° C., the gelling time is 1 hour, and the pH value of the gelling slurry is 8.5. CO was added during gelation 2 The total amount of gas and the Al in alkaline working solution B 2 o 3 The molar ratio is 3.5, and the gel is aged for 2 hours. Then filter, add 600ml of clean water, 12.4g of molybdenum trioxide and 180 grams of tetraethylammonium bromide to the filter cake, stir evenly, filter, dry the filter cake at 80°C for 5 hours, extru...

Embodiment 2

[0032] According to the method for embodiment 1, press the component content ratio of catalyst B in table 1, add nickel chloride, ammonium metatungstate and zirconium oxychloride to prepare acidic working solution A in dissolving tank 1, then add to dissolving tank 2, add sodium metaaluminate alkaline working solution B. Add 350mL of water into the reaction tank, and the temperature rises to 40°C. Under stirring, solution A, solution B and CO 2 And flow into the reaction tank to form a gel, CO 2 The concentration is 45v%, the gelling temperature is 40° C., the gelling time is 1.5 hours, and the pH value of the gelling slurry is 7.5. CO was added during gelation 2 The total amount of gas and the Al in alkaline working solution B 2 o 3 The molar ratio is 4.0, and the gel is aged for 1.5 hours. Then filter, add 500ml of clean water, 10.3g of molybdenum trioxide and 210 grams of hexadecyltrimethylammonium bromide to the filter cake, beat the slurry and stir evenly, filter, d...

Embodiment 3

[0034] According to the method of Example 1, according to the component content ratio of catalyst C in Table 1, nickel chloride, ammonium metatungstate and phosphoric acid are added to the dissolution tank 1 to prepare acidic working solution A, and then added to the dissolution tank 2 Sodium metaaluminate alkaline working solution B. Add 350mL of water into the reaction tank, and the temperature rises to 50°C. Under stirring, solution A, solution B and CO 2 And flow into the reaction tank to form a gel, CO 2 The concentration is 35v%, the gelling temperature is 50° C., the gelling time is 1.5 hours, and the pH value of the gelling slurry is 8.0. CO was added during gelation 2 The total amount of gas and the Al in alkaline working solution B 2 o 3 The molar ratio is 3.0, and the gel is aged for 2.0 hours. Then filter, add 500ml of clean water, 11.2g of molybdenum trioxide and 191 grams of aminotriacetic acid in the filter cake, beat and stir evenly, filter, filter cake i...

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Abstract

The invention discloses a method for preparing a hydrogenation catalyst composition. The method comprises the following steps: preparing a mixture of a NixWyOz composite oxide precursor and an Al2O3 precursor by a coprecipitation method, using sodium meta-aluminate as an aluminum source, introducing a proper amount of CO2 gas during gelling process, beating and mixing with molybdenum oxide and anorganic solvent after gelling, molding and drying to obtain the catalyst. The method of the invention is capable of solving the problem of difficult shaping of a bulk phase catalyst and adjusting thephysicochemical property of the catalyst, possesses the advantages of large specific surface area, uniform aperture distribution, high effective utilization rate. The catalyst is especially suitable for producing super clean diesel oil in a super deep desulphurization reaction.

Description

technical field [0001] The invention relates to a hydrogenation catalyst composition and a preparation method thereof, in particular to a preparation method of a catalyst used in impurity removal processes such as hydrocarbon ultra-deep hydrodesulfurization and denitrogenation. Background technique [0002] While the quality of feedstock oil is further deteriorating worldwide, fuel oil regulations have become more stringent on transportation fuel indicators. In the past ten years, many countries including North America, Europe, and Japan have proposed the concept of ultra-low sulfur diesel oil (ULSD) and continuously The formulation of new fuel regulations to limit the content of sulfur and aromatics in motor gasoline and diesel makes it necessary for refineries to find new catalysts to meet product needs while ensuring profitability. [0003] Petroleum fractions contain a variety of sulfur-containing compounds with different structures and molecular weights, including merca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/888B01J27/19B01J35/02B01J37/02
Inventor 王海涛徐学军刘东香王继锋冯小萍
Owner CHINA PETROLEUM & CHEM CORP
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