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High-activity catalytic material and preparation method therefor

A catalytic material and high-activity technology, applied in chemical instruments and methods, catalytic cracking, molecular sieve catalysts, etc., can solve problems such as increased preparation costs, unfriendly templating agents, and obstacles to the industrial application of ordered mesoporous materials

Active Publication Date: 2018-12-07
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the preparation process of ordered mesoporous materials, it is usually necessary to use templates, such as surfactants, polymer block copolymers, etc., and the preparation cost will increase accordingly. Some templates are not friendly to the environment, which to a certain extent This hinders the industrial application of ordered mesoporous materials, especially in the process of catalytic cracking reaction

Method used

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  • High-activity catalytic material and preparation method therefor
  • High-activity catalytic material and preparation method therefor
  • High-activity catalytic material and preparation method therefor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] This example illustrates the catalytic material provided by the present invention and its preparation process.

[0032] Add a small amount of deionized water to the beaker, and mix the tetraethoxy silicon and sodium metaaluminate solution (160gAl 2 O 3 / L, causticity ratio 2.55) was added to the beaker at the same time for mixing to form a gel, to ensure that the two materials were added in the same time, the pH value was 13.4; then the Al(NO 3 ) 3 Solution (concentration 60gAl 2 O 3 / L) Add to it and control the end-point pH of the slurry system to 10.2, and then treat it at a constant temperature of 80°C for 2 hours; after washing and filtering, the solid precipitate obtained is based on the dry basis of the precipitate: ammonium salt: H 2 The weight ratio of O=1:0.6:10 was exchanged at 60°C for 0.5 hours, and the catalytic material obtained by filtration and washing was recorded as FAB-1.

[0033] The X-ray diffraction spectrum of FAB-1 is as follows figure 1 As shown, 5 ch...

Embodiment 2

[0037] This example illustrates the catalytic material provided by the present invention and its preparation process.

[0038] Add a small amount of deionized water to the beaker, and mix the water glass solution (concentration 100g SiO 2 / L) and sodium metaaluminate solution (160gAl 2 O 3 / L, causticity ratio 2.55) was added to the beaker at the same time for mixing to form a gel, ensuring that the two materials were added in the same time, and the pH was 13.7; then the Al 2 (SO 4 ) 3 Solution (concentration 60gAl 2 O 3 / L) Add to it and control the end-point pH of the slurry system to 9.3, and then treat it at a constant temperature of 40°C for 4 hours; after washing and filtering, the solid precipitate obtained is based on the dry basis of the precipitate: ammonium salt: H 2 The weight ratio of O=1:0.8:12 was exchanged at 60°C for 1 hour, and the catalytic material obtained by filtering and washing with water was designated as FAB-2.

[0039] The X-ray diffraction spectrum of FAB-...

Embodiment 3

[0043] This example illustrates the catalytic material provided by the present invention and its preparation process.

[0044] Add a small amount of deionized water to the beaker, and mix the alkaline silica sol (concentration 21g SiO 2 / L) and sodium metaaluminate solution (102gAl 2 O 3 / L, causticity ratio 2.45) was added to the beaker at the same time for mixing to form a gel, to ensure that the two materials were added in the same time, the pH value was 13.3; then the Al 2 (SO 4 ) 3 Solution (concentration 60gAl 2 O 3 / L) Add to it and control the end-point pH of the slurry system to 10.0, and then treat it at a constant temperature of 70°C for 6 hours; after washing and filtering, the solid precipitate obtained is based on the dry basis of the precipitate: ammonium salt: H 2 The weight ratio of O=1:0.4:10 was exchanged at 50°C for 0.5 hours. After filtering and washing, the ammonium exchange process was repeated once, and the catalytic material obtained by filtering and washing...

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Abstract

The invention relates to a high-activity catalytic material. According to the high-activity catalytic material, measured by Pyridine-IR at the temperature of 200 DEG C, the ratio of B acid site quantity to L acid site quantity is 0.10 to 0.23, and by oxide weight, the high-activity catalytic material has the chemical composition of (0-0.3)Na2O.(15-45)SiO2.(55-85)Al2O3. The high-activity catalyticmaterial is characterized in that an XRD spectrogram has 5 characteristic diffraction peaks separately at a 2[theta] angle of 14 degrees, 28 degrees, 38.5 degrees, 49 degrees or 65 degrees, the specific surface area is 300m<2> / g to 500m<2> / g, the average pore size is 5nm to 18nm, c / d is equal to 1.2 to 1.6, c means a surface Al / Si atomic ratio measured by an XPS method, and d means a bulk-phase Al / Si atomic ratio measured by an XRF method. The catalytic material is obvious in mesoporous characteristic, high in B acid site ratio, high in heavy oil conversion energy and high in liquid yield.

Description

Technical field [0001] The present invention relates to a catalytic material and a preparation method thereof. Furthermore, the present invention relates to a catalytic material having a pseudo-boehmite structure and a preparation method thereof. Background technique [0002] As an important reaction process in petroleum refining and processing, fluidized catalytic cracking is widely used in the petroleum processing industry and occupies a pivotal position in oil refineries. In the process of catalytic cracking reaction, heavy fractions such as vacuum distillate oil or residual oil with heavier components undergo cracking reactions in the presence of catalysts and are converted into liquid cracked products such as gasoline and diesel as well as lighter gaseous cracked products. Catalytic cracking reaction Generally follow the carbanion reaction mechanism, so in the reaction process, it is usually necessary to use a catalytic material with higher acidity, especially a B acid cente...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J21/12B01J29/08C10G11/04C10G11/05
CPCC10G11/04C10G11/05B01J21/12B01J29/088B01J35/67
Inventor 郑金玉王成强罗一斌
Owner CHINA PETROLEUM & CHEM CORP