A kind of catalytic cracking catalyst and its preparation method and application

A catalytic cracking and catalyst technology, used in catalytic cracking, physical/chemical process catalysts, molecular sieve catalysts, etc., can solve problems such as poor coke selectivity, achieve low coke selectivity, high catalytic cracking activity, and increase the content of mesopores. Effect

Active Publication Date: 2018-07-31
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the cracking catalyst has the advantages of low production cost and better crude oil conversion ability compared with the conventional catalyst using pseudo-boehmite, its coke selectivity is poor

Method used

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  • A kind of catalytic cracking catalyst and its preparation method and application
  • A kind of catalytic cracking catalyst and its preparation method and application
  • A kind of catalytic cracking catalyst and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0060] The preparation method of the catalytic cracking catalyst provided by the invention comprises mixing and beating the above-mentioned cracking active component, mesoporous active material, clay and binder, and then performing spray drying, washing, filtering and drying in sequence.

[0061] According to the preparation method of catalytic cracking catalyst provided by the present invention, the cracking active component, mesoporous active material, clay and binder are mixed and beaten, and the subsequent spray drying, washing, filtering and drying are the implementation methods of these processes All can be implemented by conventional methods, and their specific implementation methods are described in detail in CN1916166A, CN1098130A, CN1362472A, CN1727442A, CN1132898C and CN1727445A, which are incorporated into the present invention for reference. In addition, generally, after the spray-drying and before washing, the preparation method of the catalytic cracking catalyst ...

preparation example 1

[0077] This preparation example is used to illustrate the phosphorus- and metal-modified mesoporous silica-alumina material provided by the present invention and its preparation method.

[0078] (1) First, the concentration is 90gAl 2 o 3 / L Al 2 (SO 4 ) 3 Put the solution in a beaker, add ammonia water with a concentration of 25wt.% under stirring until the system pH=10.0, keep the gelling temperature at 40°C, collect and measure it into a glue liquid; (2) under stirring conditions, according to SiO 2 :Al 2 o 3 = 1:3 weight ratio Adding concentration of 60g SiO to the gelling slurry 2 / L of water glass, warming up to 80° C. and aging for 1 hour, to obtain the first solid precipitate; (3) the first solid precipitate according to its precipitate dry basis: HCl: H 2 The weight ratio of O=1:0.08:12 was exchanged at 50°C for 30 minutes, filtered and washed with water to obtain the second solid precipitate with a sodium oxide content lower than 0.3%; (4) the second solid pre...

preparation example 2

[0081] This preparation example is used to illustrate the phosphorus- and metal-modified mesoporous silica-alumina material provided by the present invention and its preparation method.

[0082] (1) With a concentration of 90gAl 2 o 3 / L Al 2 (SO 4 ) 3 solution and concentration of 102gAl 2 o 3 / L, NaAlO with a caustic ratio of 2.5 2 The solution is the raw material for the reaction, and it adopts the method of co-current gelation, and mixes it under vigorous stirring to form a gel. The temperature of the system is controlled at 40 ° C, the pH of the system is 10.5, and it is collected and measured into a gelatinous liquid; 2 :Al 2 o 3 = 1:1.2 weight ratio, add SiO at a concentration of 100g to the gelling slurry 2 / L of water glass, warming up to 70°C for aging for 2 hours, to obtain the first solid precipitate; (3) the first solid precipitate according to its precipitate dry basis: HCl: H 2 The weight ratio of O=1:0.08:15 was exchanged at 60°C for 30 minutes, filte...

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Abstract

The invention provides a catalytic cracking catalyst, its preparation method and application. Based on the total weight of the catalytic cracking catalyst, the catalytic cracking catalyst contains 1-50% by weight of the mesoporous active material, and the anhydrous chemical expression of the mesoporous active material in terms of the weight ratio of the oxide is: (0 ‑0.2) Na2O (40‑85) Al2O3 (10‑55) SiO2 (0.5‑10) P2O5 (0.5‑10) MxOy, wherein metal M is selected from Mg, Periodic Table IIB, IIIB, IVB, VIIB group elements, and one or more of the lanthanide rare earth elements, y is the highest valence state when the metal M forms an oxide, and the values ​​of x and y make the valences of M and O balance. It has lower coke selectivity and higher catalytic cracking activity in heavy oil catalytic cracking, and can obtain gasoline fraction with lower olefin and sulfur content.

Description

technical field [0001] The invention relates to a catalytic cracking catalyst, a preparation method of the catalytic cracking catalyst and an application of the catalytic cracking catalyst in heavy oil catalytic cracking. Background technique [0002] Catalytic cracking (FCC) is an important secondary processing process of crude oil and occupies a pivotal position in the oil refining industry. In the catalytic cracking process, heavy fractions (such as vacuum distillate oil or residues of heavier components) react in the presence of catalysts and are converted into high value-added products such as liquefied gas, gasoline, and diesel oil. In this process, it usually requires Catalytic materials with high cracking activity are used. Microporous zeolite catalytic materials are widely used in petroleum refining and processing industries due to their excellent shape-selective catalytic performance and high cracking reactivity. With the depletion of petroleum resources and the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J29/08B01J29/80B01J35/10C10G11/05
Inventor 任飞罗一斌朱玉霞陈振宇杨雪田辉平郑金玉
Owner CHINA PETROLEUM & CHEM CORP
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