Catalytic cracking catalyst containing Y-type molecular sieve and preparation method thereof

A catalytic cracking and catalyst technology, applied in molecular sieve catalysts, catalytic cracking, physical/chemical process catalysts, etc., can solve the problems of high differential thermal destruction temperature, low silicon-aluminum ratio, and unsuitable catalysts

Active Publication Date: 2013-12-18
PETROCHINA CO LTD +1
View PDF16 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] 4. Small-grain Y-type molecular sieves are produced by means of accelerated stirring and low-temperature gelation, such as USP4,587,115 and EP41,659, etc. The disadvantage is that the silicon-aluminum ratio of the product is low
The crystal grains of the synthesized NaY molecular sieve

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Catalytic cracking catalyst containing Y-type molecular sieve and preparation method thereof
  • Catalytic cracking catalyst containing Y-type molecular sieve and preparation method thereof
  • Catalytic cracking catalyst containing Y-type molecular sieve and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0062] Example 1: Preparation method of Y-type molecular sieve with high stability and small crystal particles and catalytic cracking catalyst

[0063] (1) Preparation of improved directing agent: Take 0.9g polyethylene glycol 600 (Tianjin Ruijinte Chemical Co., Ltd., chemically pure) and add it to 18g water to form solution A; take 6.6g 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%), stir until the pseudo-boehmite is completely dissolved to obtain sodium metaaluminate solution B. Combine Solution B and 43.6g of water glass (Beijing Hongxing Sodium Alkaline Plant, SiO 2 Content 27.81wt%, Na 2 O content 8.74wt%) was sequentially poured into solution A, stirred evenly and then statically aged at 30°C for 24 hours to obtain an improved directing agent contain...

Example Embodiment

[0069] Example 2

[0070] The source of each raw material is the same as in Example 1

[0071] (1) Preparation of improved directing agent: add 5g APE (Tianjin Ruijinte Chemical Co., Ltd., chemically pure) into 20g water to form solution A; add 3.5g sodium hydroxide to 13.3g water, and stir until it is hydroxide Sodium is completely dissolved, then 1.8 g of pseudo-boehmite is added, and the mixture is stirred until the pseudo-boehmite is completely dissolved to obtain sodium metaaluminate solution B. Pour solution B and 54.8 g of water glass into solution A in turn, stir evenly and age at 20°C for 24 hours to obtain an improved directing agent containing surfactant. Based on the directing agent as 100wt%, the content of APE is 5wt%, and the molar ratio of the remaining components is: 9.5Na 2 O:Al 2 O 3 :20SiO 2 :300H 2 O.

[0072] (2) Preparation of NaY molecular sieve: Dissolve 15g aluminum sulfate in 100g water to form Al 2 O 3 Aluminum sulfate solution C with a content of 5.3 wt...

Example Embodiment

[0077] Example 3

[0078] The source of each raw material is the same as in Example 1

[0079] (1) Preparation of improved directing agent: Take 2g polyethylene glycol 2000 and 2g Tween-40 (Tianjin Ruijinte Chemical Co., Ltd., chemically pure) into 30g water to form solution A; take 4g sodium hydroxide Add to 13 g of water, stir until all the sodium hydroxide is dissolved, then add 1.1 g of pseudo-boehmite, and stir until all the pseudo-boehmite is dissolved to obtain sodium metaaluminate solution B. Pour solution B and 42g of water glass into solution A in turn, stir evenly and then age at 40°C for 8 hours to obtain an improved directing agent containing surfactant. Based on the directing agent as 100wt%, the content of polyethylene glycol 2000 and Tween-40 is 4.2wt%, and the molar ratio of the remaining components is: 14Na 2 O:Al 2 O 3 :25SiO 2 :500H 2 O.

[0080] (2) Preparation of NaY molecular sieve: dissolve 5.4g aluminum sulfate in 100g water to form Al 2 O 3 Aluminum sulfat...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

A catalytic cracking catalyst containing Y-type molecular sieve and a preparation method thereof. The invention provides a catalytic cracking catalyst containing high-stability small-grain Y-type molecular sieve and a preparation method thereof. Preparation of the high-stability small-grain Y-type molecular sieve employs an improved guiding agent containing a surfactant. The method provided by the invention can effectively and conveniently prepare the high-stability small-grain Y-type molecular sieve and the catalytic cracking catalyst. Compared with the prior art, the catalytic cracking catalyst has enough high catalytic activity.

Description

technical field [0001] The invention relates to a catalytic cracking catalyst containing Y-type molecular sieves and a preparation method thereof, in particular to a catalytic cracking 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 si...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B01J29/08C10G11/05
Inventor 庞新梅刘百军曾方亮王文清李蓓娣王骞李兆飞阎立军
Owner PETROCHINA CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap