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Hydrocracking catalyst containing Y-type molecular sieve, and preparation method thereof

A hydrocracking and catalyst technology, applied in molecular sieve catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., can solve problems such as unsuitable catalysts, high differential thermal destruction temperature, and low silicon-aluminum ratio

Active Publication Date: 2013-12-18
PETROCHINA CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] 4. Small-grain Y-type molecular sieves are prepared by means of accelerated stirring and low-temperature gelation, etc. The disadvantage is that the silicon-aluminum ratio of the product is low
The crystal grains of the synthesized NaY molecular sieve are 0.09~0.28 microns, but the highest differential thermal destruction temperature is 939°C, which is lower than the differential thermal destruction temperature of conventional NaY molecular sieves, so it is not suitable as a catalyst for catalytic cracking and other oil refining processes

Method used

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  • Hydrocracking catalyst containing Y-type molecular sieve, and preparation method thereof
  • Hydrocracking catalyst containing Y-type molecular sieve, and preparation method thereof
  • Hydrocracking catalyst containing Y-type molecular sieve, and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0062] (1) Preparation of the improved directing agent: Take 0.9g of polyethylene glycol 600 (Tianjin Ruijinte Chemical Co., Ltd., chemically pure) and add it to 18g of water to form solution A; take 6.6g of sodium hydroxide (Beijing Chemical Plant , analytically pure) was added to 20g of water, stirred until the sodium hydroxide was completely dissolved, and then 1.1g of pseudo-boehmite (Shandong Aluminum Company Research Institute, industrial product, Al 2 o 3 Content 72.0wt%), stirring until the pseudo-boehmite is completely dissolved to obtain sodium metaaluminate solution B. Solution B and 43.6g water glass (Beijing Red Star Soda Soda Factory, SiO 2 Content 27.81wt%, Na 2 O content 8.74wt%) was poured into solution A in turn, stirred evenly, and aged at 30°C for 24 hours to obtain an improved directing agent containing surfactant. Based on 100wt% of the directing agent, the content of polyethylene glycol 600 is 1wt%, and the molar ratio of the other components is: 18Na...

Embodiment 2

[0071] Each raw material source is with embodiment 1

[0072] (1) Preparation of improved directing agent: Take 5g of APE (Tianjin Ruijinte Chemical Co., Ltd., chemically pure) and add it to 20g of water to form solution A; take 3.5g of sodium hydroxide and add it to 13.3g of water, stir until hydrogen Sodium oxide is completely dissolved, then 1.8 g of pseudo-boehmite is added, and stirred until the pseudo-boehmite is completely dissolved to obtain sodium metaaluminate solution B. Pour solution B and 54.8g of water glass into solution A in sequence, stir well and then age at 20°C for 24 hours to obtain an improved directing agent containing surfactant. Based on 100wt% of the directing agent, the content of APE is 5wt%, and the molar ratio of the other components is: 9.5Na 2 O: Al 2 o 3 :20SiO2 2 :300H 2 O.

[0073] Preparation of NaY type molecular sieve: Dissolve 15g of aluminum sulfate in 100g of water to form Al 2 o 3 Aluminum sulfate solution C with a content of 5...

Embodiment 3

[0081] Each raw material source is with embodiment 1

[0082] (1) Preparation of improved directing agent: Take 2g polyethylene glycol 2000 and 2g Tween-40 (Tianjin Ruijinte Chemical Co., Ltd., chemically pure) and add it to 30g water to form solution A; take 4g sodium hydroxide Add it into 13 g of water, stir until the sodium hydroxide is completely dissolved, then add 1.1 g of pseudo-boehmite, and stir until the pseudo-boehmite is completely dissolved to obtain sodium metaaluminate solution B. Pour solution B and 42g of water glass into solution A in sequence, stir well and then age at 40°C for 8 hours to obtain an improved directing agent containing surfactant. Based on 100wt% of the directing agent, the content of polyethylene glycol 2000 and Tween-40 is 4.2wt%, and the molar ratio of the other components is: 14Na 2 O: Al 2 o 3 :25SiO2 2 :500H 2 O.

[0083] (2) Preparation of NaY molecular sieve: Dissolve 5.4g of aluminum sulfate in 100g of water to form Al 2 o 3 A...

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Abstract

The invention provides a hydrocracking catalyst containing a highly-stable small-grain Y-type molecular sieve, and a preparation method thereof. A carrier of the catalyst contains the highly-stable small-grain Y-type molecular sieve, active components of the catalyst comprise at least one group VIB metal W or Mo and at least one group VIII metal Ni or Co, and an active component aid comprises P; and an improved directing agent containing a surfactant is used in the preparation of the used highly-stable small-grain Y-type molecular sieve. The highly-stable small-grain Y-type molecular sieve and the hydrocracking catalyst can be effectively and conveniently obtained through using the method; and compared with the prior art, the method has the advantages of technology simplification, selectivity increase on the basis of an enough activity, and target product yield increase.

Description

technical field [0001] The invention relates to a hydrocracking catalyst containing Y-type molecular sieves and a preparation method thereof, in particular to a hydrocracking catalyst containing high-stability small-grain Y-type molecular sieves and a preparation method thereof. Background technique [0002] As the core technology of the oil refining industry, catalytic cracking and its catalysts have attracted much attention. As the catalytic cracking feedstock becomes heavier, the proportion of macromolecular hydrocarbons with an average size above 2nm in the feedstock continues to increase. The Y-type molecular sieve, which is the main active component of the catalytic cracking catalyst, has a pore size of only 0.7nm. Obviously, a large number of raw material molecules cannot enter the channels of the Y-type molecular sieve for reaction. Although the macromolecules in the feedstock can be precracked on the catalyst substrate, the diffusion effect still has a significant ...

Claims

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Application Information

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IPC IPC(8): B01J29/16C10G47/20
Inventor 刘百军庞新梅王锐刘少鹏张茵王晓化李发永
Owner PETROCHINA CO LTD
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