Preparation method of porous active catalytic material

A catalytic material and active technology, which is applied in the field of preparation of porous active catalytic materials, can solve the problems affecting the cracking reaction of macromolecules and small pores, and achieve the effects of improving profit space, reducing costs and strong cracking ability

Active Publication Date: 2017-06-09
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although microporous molecular sieves have high cracking activity, their pores are small, which can significantly restrict the diffusion of macromolecules such as heavy oil or residual oil in their pores, which affects the cracking reaction of macromolecules.

Method used

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  • Preparation method of porous active catalytic material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] This example illustrates the preparation method of the porous active catalytic material provided by the present invention.

[0029] Take Al 2 (SO 4 ) 3 Solution (concentration 50gAl 2 o 3 / L) and ammoniacal liquor (massfraction 25%) are reaction raw materials, under vigorous stirring, Al 2 (SO 4 ) 3Solution and ammoniacal liquor are added simultaneously, and flow into gel, and the temperature that controls to become gel slurry liquid is 45 ℃, and the pH value of gel slurry liquid is 9.5, adds appropriate amount of NaY crystallization mother liquor (concentration 50gSiO 2 / L, suspension concentration 100mg / L), and then heated up to 60°C for aging for 4 hours; after filtration, the resulting solid precipitate was calculated on a dry basis of the precipitate: HCl: H 2 The weight ratio of O=1:0.07:10 was exchanged at 40°C for 0.5 hours, filtered and washed with water, and the acid exchange was repeated once. After filtering, the porous active catalytic material provi...

Embodiment 2

[0032] This example illustrates the preparation method of the porous active catalytic material provided by the present invention.

[0033] Take Al 2 (SO 4 ) 3 The solution and ammonia water are used as the reaction raw materials, and the Al 2 (SO 4 ) 3 Solution and ammoniacal liquor are mixed into gel, and control gelation temperature is 35 ℃, and the pH value of gelation system is 8.5, adds appropriate amount of NaY washing filtrate (concentration 40gSiO 2 / L, suspension concentration 5400mg / L), and then heated up to 70°C for 2 hours; after filtration, the resulting solid precipitate was calculated on a dry basis of the precipitate: HCl: H 2 The weight ratio of O=1:0.12:15 was exchanged at 50° C. for 0.5 hours, filtered and washed with water to obtain the porous active catalytic material provided by the present invention, which was designated as APM-A-2.

[0034] APM-A-2 has a pseudo-boehmite crystal phase structure, and at the same time mixed with a small amount of FAU...

Embodiment 3

[0040] This example illustrates the preparation method of the porous active catalytic material provided by the present invention.

[0041] Take Al 2 (SO 4 ) 3 solution and NaAlO 2 Solution (concentration 102gAl 2 o 3 / L) as the reaction raw material, under vigorous stirring at 50°C, NaAlO 2 solution added to Al 2 (SO 4 ) 3 Carry out neutralization gelation in the solution, the pH value of gelation is controlled at 10.5, then adds the mixed solution (concentration 34gSiO 2 / L, suspended solids concentration 2100mg / L), and heated to 80°C for aging for 1 hour; after filtration, the obtained solid precipitate was calculated on a dry basis of the precipitate: HCl: H 2 The weight ratio of O=1:0.08:12 was exchanged at room temperature for 1 hour, filtered and washed with water, and the acid exchange was repeated once. After filtering, the porous active catalytic material provided by the present invention was obtained, which was designated as APM-A-3.

[0042] APM-A-3 has a ...

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Abstract

The invention relates to a preparation method of a porous active catalytic material, which is characterized in that firstly, an aluminium source and alkali solution are neutralized to form glue at the temperature ranging from the room temperature to 85 DEG C, and a pH value of the formed glue is controlled within a range of 7 to 11; then according to a weight ratio of SiO2 to Al2O3 of 1: (1 to 9), NaY crystallization mother liquor and/or washing filtrate are added into the formed glue solution; aging is carried out for 1 to 5 hours at the temperature ranging from the room temperature to 90 DEG C to obtain solid precipitates; according to a weight ratio of a dry basis to acid to H2O of 1: (0.03 to 0.20): (5 to 30) in the solid precipitates, exchange is carried out for at least 0.2 hour at the temperature ranging from the room temperature to 100 DEG C; content of sodium oxide in the solid precipitates is washed to below 0.3%. The porous active catalytic material obtained by adopting the method provided by the invention has higher cracking performance.

Description

technical field [0001] The invention relates to a preparation method of a porous active catalytic material, and furthermore, the present invention relates to a preparation method of a porous active catalytic material having a pseudo-boehmite crystal phase structure. Background technique [0002] Catalytic cracking is a very important process in the petroleum refining process and is widely used in the petroleum processing industry. In the catalytic cracking process, heavy fractions such as vacuum distillate oil or residues of heavier components undergo cracking reactions in the presence of catalysts to produce liquefied gas, gasoline, diesel and other products to meet market demand. Catalytic materials with certain acidity and higher cracking activity are used. Microporous molecular sieve materials have the characteristics of uniform pore size distribution, large specific surface area, strong acidity and high cracking reactivity, and are widely used in petroleum refining and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J29/08C10G11/05
CPCB01J29/084C10G11/05C10G2300/70
Inventor 王成强郑金玉罗一斌
Owner CHINA PETROLEUM & CHEM CORP
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