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A kind of active porous catalytic material and preparation method thereof

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

Active Publication Date: 2018-09-28
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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  • A kind of active porous catalytic material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

[0033] 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 ) 3 Solution 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), then warming up to 60°C and aging for 4 hours; after filtering, the resulting solid precipitate was calculated on a dry basis of the precipitate: ammonium salt: H 2 The weight ratio of O=1:1:10 was exchanged at 60°C for 1 hour, filtered and washed with water, and the ammonium exchange was repeated once. After filtering, the active porous catalytic material provide...

Embodiment 2

[0036] This example illustrates the preparation of the active porous catalytic material provided by the present invention.

[0037] 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 filtering, the resulting solid precipitate was calculated on a dry basis of the precipitate: ammonium salt: H 2 The weight ratio of O=1:0.7:15 was exchanged at 50°C for 0.5 hours, filtered and washed with water, and the ammonium exchange was repeated once. After filtering, the active porous catalytic material provided by the present invention was obtained, which was designated as APM-2.

[0038] The main structure of APM-2 is pseudo-boehm...

Embodiment 3

[0044] This example illustrates the preparation of the active porous catalytic material provided by the present invention.

[0045] 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, suspension concentration 2100mg / L), and raised to 80 ℃ for 1 hour aging; after filtration, the solid precipitate obtained was calculated on a dry basis of the precipitate: ammonium salt: H 2 The weight ratio of O=1:0.8:15 was exchanged at room temperature for 1 hour, filtered and washed with water to obtain the active porous catalytic material provided by the present invention, which was designated as APM-3.

[0046] The main structure of APM-3 is pseudo-boehmite crystal phase structure, and there is a...

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Abstract

The invention discloses an active porous catalytic material. The anhydrous chemical expression of the catalytic material is (0 to 0.3) Na2O.(10 to 50) SiO2.(50 to 90) Al2O3 according to the weight of an oxide; the average aperture is 8 to 15 nm, and the total specific surface area is 250 to 600 m<2> / g. The active porous catalytic material is characterized in that the active porous catalytic material is of a pseudo-boehmite crystal structure, and also contains an FAU crystal structure; the ratio of the micropore specific surface area is not greater than 8 percent in the total specific surface area. The material is excellent in cracking performance.

Description

technical field [0001] The invention relates to an active porous catalytic material and a preparation method thereof, and furthermore, the invention relates to an active porous catalytic material having a pseudo-boehmite crystal phase structure and a preparation method thereof. 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 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B39/24B01J29/08C10G11/02
CPCB01J29/084C01B39/24C01P2002/60C01P2002/72C01P2006/12C01P2006/16C10G11/05
Inventor 郑金玉王成强罗一斌
Owner CHINA PETROLEUM & CHEM CORP
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