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Catalytic cracking catalyst as well as preparation method and application thereof

A catalytic cracking and catalyst technology, applied in the direction of catalyst activation/preparation, catalytic cracking, physical/chemical process catalysts, etc., to achieve high gasoline yield, high liquid yield, and increase the effect of specific heat capacity

Active Publication Date: 2022-05-03
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a new catalytic cracking catalyst with better heavy oil conversion ability and metal pollution resistance

Method used

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  • Catalytic cracking catalyst as well as preparation method and application thereof
  • Catalytic cracking catalyst as well as preparation method and application thereof
  • Catalytic cracking catalyst as well as preparation method and application thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0043] The second embodiment of the catalytic cracking catalyst of the present invention, a preparation method of the matrix material, comprises the following steps:

[0044] (1) Mix the aluminum source solution and the alkali solution at room temperature to 85°C to form a gel, and control the pH of the gel to be 7-11;

[0045] (2) configuration pH is the manganese salt solution that is 3-7, manganese salt solution is mixed with urea, stirs; Urea and manganese ion mol ratio are 1-5, and the temperature that this manganese salt solution mixes with urea has no special requirement, in It can be carried out at room temperature, and the stirring time is, for example, 30-60 minutes;

[0046] (3) Mix the product obtained in step (1), the product obtained in step (2) and boron nitride, and age at room temperature to 120° C. for 4-72 hours; and optionally,

[0047] (4) washing the product obtained in step (3) with water, preferably, the washing makes the washing liquid after washing n...

Embodiment approach

[0066] According to the third embodiment of the catalytic cracking catalyst provided by the present invention, in the preparation method of the high specific heat capacity matrix material, the optional range of the aging condition in step (3) is relatively wide, preferably, in step (3) The aging conditions include: the aging temperature is 60-100°C, the aging is stirred, and the aging time is 12-36h. The stirring method is an existing method, for example, the stirring speed is 50-300 rev / min. The aged product is filtered or washed after filtering to obtain the aged solid product. One embodiment, the washing, according to the aging solid product (dry basis): H 2 O=1: (5-30) weight ratio The aged solid product (also known as precipitate) obtained by aging is contacted with water at room temperature for 1-3 times, each time for 0.5-1 hour, until the washing liquid after washing Neutral usually has a pH of 6.5-7.5.

[0067] According to the third embodiment of the catalytic cra...

preparation example 1

[0094] This preparation example illustrates the preparation process of the high specific heat capacity matrix material provided by the present invention.

[0095] Concentration 300gAl 2 o 3 / L Al 2 (SO 4 ) 3 solution with CO 3 2- The ammonium carbonate solution with a concentration of 0.10 mol / L was mixed at 20° C. to form a colloid, and the obtained colloid had a pH value of 7.5, and a slurry A was obtained. To a concentration of 450gMnO 2 / L MnCl 2 Add hydrochloric acid to the solution to control the pH value = 3.5, then add urea to the solution, the molar ratio of urea to manganese ions is 2, and stir at room temperature for 30 minutes to obtain solution B. Add solution B to slurry A, stir and age at 80°C for 4h, wait until the temperature of the system drops to room temperature, rinse with deionized water until the washed water is neutral, dry at 120°C for 12h to obtain the matrix material precursor, and then Calcined at 550°C for 6 hours, and cooled to room tempe...

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Abstract

The invention discloses a catalytic cracking catalyst as well as a preparation method and application thereof. The catalytic cracking catalyst contains a cracking activity component, a high-specific-heat-capacity matrix material, clay and a binder, the high specific heat capacity matrix material contains at least 5% by weight of manganese oxide having a specific heat capacity of 1.3-2.0 J / (g.K). The preparation method of the catalytic cracking catalyst comprises the following steps: mixing and pulping the cracking active component, the high specific heat capacity matrix material and / or the precursor thereof, the clay and the binder, spray-drying, roasting, washing, filtering and drying. The catalytic cracking catalyst has excellent metal pollution resistance and good heavy oil conversion capacity, is used for heavy oil catalytic cracking, and has high light oil yield.

Description

technical field [0001] The invention relates to a catalytic cracking catalyst and its preparation method and application. Background technique [0002] With the increasing shortage of oil resources and rising crude oil prices, major refineries reduce costs through deep processing of heavy oil and use inferior oil to maximize benefits. At present, catalytic cracking is an important means of heavy oil processing. [0003] However, the content of heavy metals (such as vanadium and nickel) in low-quality crude oil is generally high. Especially in recent years, due to the heavy and poor quality of feedstock oil and the processing of opportunity crude oil, metal poisoning of catalytic cracking catalysts has become increasingly common. Numerous research results have shown that once metals such as iron and nickel are deposited on the surface, they are difficult to migrate, and they will interact with elements such as silicon, aluminum, vanadium, and sodium to form a low-melting eute...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J29/08B01J29/80B01J23/34B01J35/08B01J35/10B01J37/00B01J37/08C10G11/05
CPCB01J29/084B01J29/80B01J23/34B01J23/002B01J37/0045B01J37/08C10G11/05B01J29/7007B01J29/70B01J2523/00B01J35/30B01J35/51B01J35/633B01J35/635B01J35/647B01J35/615B01J2523/305B01J2523/31B01J2523/72B01J29/08B01J21/02Y02P20/52
Inventor 刘倩倩达志坚宋海涛陈振宇朱玉霞
Owner CHINA PETROLEUM & CHEM CORP
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