Molecular sieve composition and particle containing molecular sieve active component and preparation methods thereof and catalytic cracking catalyst

An active component and catalytic cracking technology, which is applied in molecular sieve catalysts, physical/chemical process catalysts, catalytic cracking, etc., can solve the problems of increasing catalyst usage, increasing catalyst consumption, low catalyst activity, etc., and achieve good heavy oil conversion capacity, low coke yield, and high activity

Active Publication Date: 2013-07-31
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the activity of the catalyst is still low, and the amount of catalyst used and the consumption of catalyst must be increased in production to maintain the required activity of the catalyst.

Method used

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  • Molecular sieve composition and particle containing molecular sieve active component and preparation methods thereof and catalytic cracking catalyst
  • Molecular sieve composition and particle containing molecular sieve active component and preparation methods thereof and catalytic cracking catalyst

Examples

Experimental program
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Embodiment approach

[0032] According to a specific embodiment of the present invention, the preparation method of the molecular sieve composition and particles containing molecular sieve active components includes the following specific steps:

[0033] (1) Mix the zeolite with the MFI structure and the organic amine solution (0.05-15% by weight) and stir for 30-60 minutes;

[0034] (2) zeolite beta is divided into multiple batches and mixed with the mixture that step (1) obtains, and the addition of every batch of zeolite beta is at most 80% by weight of the total amount of zeolite beta, preferably 30-70% by weight, and the time interval is 5- 120 minutes, and stirred for 60-120 minutes; obtain the molecular sieve composition;

[0035] (3) filtering and drying the molecular sieve composition obtained in step (2) to obtain a solid;

[0036] (4) prepare the silica sol whose pH value is 1-3, the preparation method of described silica sol can be prepared according to conventional methods, for exampl...

Embodiment 1

[0053] This example is used to illustrate the preparation of catalytic cracking catalyst.

[0054] A: Preparation of Molecular Sieve Composition and Particles a

[0055] (1) At 30°C, 14kg ZSP-3 molecular sieve (product of Sinopec Catalyst Qilu Branch Company, ZSP-3 silicon-aluminum molar ratio=40), and 100kg polyvinylamine aqueous solution (the number-average molecular weight of polyvinylamine is 1800( Purchased from Westernization Instrument (Beijing) Technology Co., Ltd.), the mass percent concentration of polyvinylamine aqueous solution is 3%), mixed and stirred for 40 minutes to obtain 114 kg of slurry;

[0056] (2) At 40° C., 4 kg of β molecular sieve (product of Sinopec Catalyst Qilu Branch Company, with a silicon-aluminum molar ratio of 20) was mixed with the slurry obtained in step (1), and stirred for 40 minutes to obtain 118 kg of slurry;

[0057] (3) At 40°C, 4 kg of β molecular sieve (product of Sinopec Catalyst Qilu Branch Company, with a silicon-aluminum molar r...

Embodiment 2

[0068] This example is used to illustrate the preparation of catalytic cracking catalyst.

[0069] Prepare the catalyst according to the method of Example 1, the difference is that in the step of preparing particle a: change the 100kg polyvinylamine solution into 280kg polyethyleneimine aqueous solution (the number average molecular weight of polyethyleneimine is 3000 (purchased from Beijing Kesijia company), the mass percentage concentration of polyethyleneimine solution is 5%), the ZSP-3 molecular sieve of 14kg is replaced by 20kg ZRP (Sinopec Catalyst Qilu Branch Company product, silicon-aluminum molar ratio is 60), β zeolite (silicon The amount of aluminum molar ratio=40) is 3kg (1kg and 2kg are added in steps (2) and (3) respectively), while particle a and particle b are mixed in a weight ratio of 5:1 to obtain catalyst 2.

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Abstract

A molecular sieve composition and a preparation method thereof are related. The preparation method of the composition comprises the mixing and contact of zeolite with a MFI structure and an organic amine solution, and the mixing and contact of the obtained mixture and beta zeolite. A particle containing a molecular sieve active component and a preparation method thereof and a catalytic cracking catalyst are related. The method comprises the following steps: mixing and contacting zeolite with a MFI structure and an organic amine solution; mixing and contacting the obtained mixture and beta zeolite, separating the solid from the mixture, drying, beating the dried solid, clay and silica sol, drying and roasting the obtained slurry. The catalytic cracking catalyst provided by the invention has strong heavy oil cracking capability, and provides a high yield of low carbon olefin, especially ethane.

Description

technical field [0001] The invention relates to a molecular sieve composition, particles containing molecular sieve active components, their preparation method and a catalytic cracking catalyst containing the particles containing molecular sieve active components of the present invention. Background technique [0002] Ethylene and propylene are important chemical raw materials for which demand is strong and growing. At present, more than 95% of ethylene and propylene in the market are provided by naphtha steam cracking and heavy oil catalytic production of low-carbon olefins. Heavy oil catalytic production of low-carbon olefins uses catalytic cracking technology, which has low energy consumption, low raw material requirements, and flexible adjustment of product distribution. It has greater development prospects in meeting the growing market demand in the future. However, in the prior art, the process of processing heavy oil to light olefins by using a riser reactor generall...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J29/80B01J35/02C10G11/05C07C4/06C07C11/04C07C11/06
CPCY02P20/52
Inventor 刘宇键许昀田辉平赵留周杨雪周治
Owner CHINA PETROLEUM & CHEM CORP
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