Hydrogenation catalyst

A hydrogenation catalyst and catalyst technology, applied in the direction of molecular sieve catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the problems of amorphous silicon-aluminum agglomeration, reduction of catalyst specific surface area and pore volume, and influence on catalyst performance, etc. Achieve the effect of enhancing binding force, responding well to the environment, and avoiding agglomeration

Active Publication Date: 2014-05-21
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the carrier material is prepared by directly adding molecular sieves in the process of forming amorphous silica-alumina. In this way, amorphous silica-alumina is prone to agglomeration, and it is also easy to enter the pores of the other party or block the pores of molecular sieves, which affects the amorphous silica-alumina. The distribution on the

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] 1500 g of solid aluminum chloride was added to 10 liters of distilled water while heating and stirring until dissolved to obtain a solution (a). Dilute the concentrated ammonia water into about 10wt% dilute ammonia water (b) by adding an appropriate amount of distilled water, and dissolve 114.7g of 1,5-pentanediol in 2L of water to form a solution (c). 44.9g Y-type molecular sieve Y-1 (SiO 2 / Al 2 o 3 The molar ratio is 11.0, the unit cell constant is 24.42?, and the relative crystallinity is 95%) use an impregnation solution containing 27g sodium tungstate and 23g nickel nitrate hexahydrate for saturated impregnation, after impregnation, dry at 120°C for 180 minutes, and bake at 500°C After 4 hours, a Y-type molecular sieve loaded with a hydrogenation active metal was obtained; 17.5g of ethylenediamine was dissolved in 300ml of absolute ethanol, heated to 60°C, stirred for half an hour, added with a Y-type molecular sieve loaded with a hydrogenation active metal, and...

Embodiment 2

[0043] 1625g of solid aluminum sulfate was added to 10 liters of distilled water while heating and stirring until dissolved to obtain solution (a). Dilute the concentrated ammonia water with an appropriate amount of distilled water to form about 10 wt% dilute ammonia water (b), and dissolve 242g of 1,4-butanediol in 1L of water to obtain a solution (c). 484g Y-type molecular sieve Y-1 (SiO 2 / Al 2 o 3 The molar ratio is 11.0, the unit cell constant is 24.42?, and the relative crystallinity is 95%). Use an impregnation solution containing 491g sodium tungstate and 433g nickel nitrate hexahydrate for saturated impregnation, dry at 120°C for 180 minutes after impregnation, and bake at 500°C After 4 hours, a Y-type molecular sieve loaded with a hydrogenation active metal was obtained; 96.8g of ethylenediamine was dissolved in 5L of water, heated to 60°C, stirred for half an hour, and the Y-type molecular sieve loaded with a hydrogenation active metal was added and stirred for 2 ...

Embodiment 3

[0046] 800 g of solid aluminum sulfate was added to 10 liters of distilled water while heating and stirring until dissolved to obtain a solution (a). Prepare the solid sodium metaaluminate to a concentration of 20g Al 2 o 3 / l sodium aluminate solution (b), 286g 1,3-propanediol was dissolved in 1L water to form solution (c). 2224g Y-type molecular sieve Y-1 (SiO 2 / Al 2 o 3 The molar ratio is 11.0, the unit cell constant is 24.42?, and the relative crystallinity is 95%) use an impregnation solution containing 1254g sodium tungstate and 1105g nickel nitrate hexahydrate for saturated impregnation, after impregnation, dry at 120°C for 180 minutes, and bake at 500°C After 4 hours, a Y-type molecular sieve loaded with a hydrogenation active metal was obtained; 222.4g of diethanolamine was dissolved in 10L of water, heated to 60°C, and the Y-type molecular sieve loaded with a hydrogenation active metal was added under stirring, and the temperature was kept stirring for 2 hours. ...

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Abstract

The invention discloses a hydrogenation catalyst. The hydrogenation catalyst comprises hydrogenation active metal components, molecular sieves and amorphous alumina, wherein the hydrogenation active metal components are mainly loaded on the molecular sieves; the molecular sieves are coated withamorphous alumina; the hydrogenation active metal components account for 1-100% of the molecular sieves by weight in terms of oxide; the weight ratio of the molecular sieves to amorphous alumina is (1:19)-(19:1). The hydrogenation catalyst enables the hydrogenation active metals to fully approach the acid centers of the molecular sieves, adjusts the hydrogenation and acid functions and has relatively low requirements for acidity and relatively high requirements for hydrogenation properties.

Description

technical field [0001] The invention relates to a hydrogenation catalyst and a preparation method thereof, in particular to a hydrogenation catalyst containing molecular sieves and a preparation method thereof. Background technique [0002] Hydrocracking technology is one of the important means for the secondary processing of crude oil and the lightening of heavy oil. Because of its strong adaptability to raw materials, flexible production operations and product solutions, and good product quality, it has become an important way to produce high-quality light clean oil products and solve the source of chemical raw materials. [0003] Hydrocracking catalysts are generally dual-functional catalysts, and their cracking activity and hydrogenation activity are respectively provided by the acidic component and hydrogenation active component in the catalyst. [0004] The acidic component of the catalyst is generally provided by molecular sieves contained in the catalyst and / or refr...

Claims

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Application Information

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IPC IPC(8): B01J29/16B01J29/78C10G47/20
Inventor 蒋广安张晔郑庆华刘雪玲李宝忠王继锋
Owner CHINA PETROLEUM & CHEM CORP
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