Preparation method of hydrogenation catalyst

A hydrogenation catalyst and hydrogenation activity technology, applied in the direction of molecular sieve catalysts, chemical instruments and methods, physical/chemical process catalysts, 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. Problems, to achieve a good response to the environment, improve performance, and enhance the effect of binding force

Active Publication Date: 2014-05-21
CHINA PETROLEUM & CHEM CORP +1
View PDF7 Cites 2 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] 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). Add an appropriate amount of distilled water to the concentrated ammonia water and dilute it into about 10wt% dilute ammonia water (b), and dissolve 115g of 1,5-pentanediol in 2L of water to form a solution (c). 44.87g 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 4 hours; 17.5g of ethylenediamine was dissolved in 300ml of absolute ethanol, heated to 60°C, stirred for half an hour, added Y molecular sieve loaded with metal, continued to stir for 2 hours, obtained after filtration modified molecular sieve ( d). After adding (a) into the gelli...

Embodiment 2

[0042] 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 4 hours; 97 g of ethylenediamine was dissolved in 5 L of water, heated to 60° C., stirred for half an hour, added with metal-loaded molecular sieves and stirred for 2 hours to obtain molecular sieve slurry (d). Take a plastic tank, add (a) into the tank, stir and heat to 60°C, open the valv...

Embodiment 3

[0045] 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). 2224gY 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 4 hours; 222.4g of diethanolamine was dissolved in 10L of water, heated to 60°C, and metal-loaded molecular sieve was added under stirring, and the temperature was kept stirring for 2 hours, and treated molecular sieve (d) was obtained by filtration. Take a glue tank, put 2l of deionized water into it, stir and hea...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a preparation method of a hydrogenation catalyst. The method comprises the following steps: adding a mixture of molecular sieves containing hydrogenation active metal components and organic amines as well as organic alcohols and/or organic acids in the amorphous alumina gel forming process; carrying out aging after amorphous alumina gel forming is completed and then carrying out filtration, washing and drying; then carrying out forming, drying and roasting, thus obtaining the hydrogenation catalyst. By adopting the method, the molecular sieves and alumina can be organically combined together with good combination degree and dispersion degree, agglomeration and even blockage of the molecular sieves and amorphous alumina can be avoided, and meanwhile, the hydrogenation and cracking functions of the catalyst can be effectively adjusted and the usability of the catalyst can be improved. The catalyst prepared by the method is suitable for the shallow cracking and deep hydrogenation processes.

Description

technical field [0001] The invention relates to a method for preparing a hydrogenation catalyst, in particular to a method for preparing a hydrogenation catalyst containing molecular sieves. 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 refractory inorganic oxi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap