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Kaolin product for catalytic cracking catalyst and preparation method thereof

A catalytic cracking, kaolin technology, applied in physical/chemical process catalysts, chemical instruments and methods, silicon compounds, etc., can solve the problems of limited ability to crack petroleum molecules, small specific surface area and pores of kaolin, and small number of active centers, etc. Enlarge pores, improve porosity, and facilitate collection

Active Publication Date: 2022-06-24
漳州阳盛工贸有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the specific surface area and pores of kaolin prepared by the above scheme are small, resulting in a small number of active centers, which limits its ability to crack petroleum molecules

Method used

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  • Kaolin product for catalytic cracking catalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0053] The preparation of chlorine dioxide microcapsules includes the following steps:

[0054] S1, configure 100ml of stable chlorine dioxide aqueous solution with a concentration of 37000mg / L, and obtain chlorine dioxide core material after pressure filtration through a microporous filter membrane with a filtration accuracy of 0.5μm;

[0055] S2, take 0.1g of gelatin and dissolve it in the chlorine dioxide core material, and dissolve it in a 40°C constant temperature water bath for 60min to obtain an aqueous solution for use;

[0056] S3. Dissolve 0.1 g of PLA in 100 ml of dichloromethane, and stir for 120 min under mechanical stirring conditions to dissolve it completely to obtain an oil phase solution;

[0057] S4. Measure 30ml of the oil phase solution and place it on a mechanical stirrer to stir, add 0.3ml of Span 80 emulsifier while stirring, add 30ml of the aqueous phase solution after stirring evenly, stir at 300r / min for 5min, and then add 20ml of liquid paraffin , ...

preparation example 2

[0059] The preparation of chlorine dioxide microcapsules includes the following steps:

[0060] S1, configure 100ml of stable chlorine dioxide aqueous solution with a concentration of 37000mg / L, and obtain chlorine dioxide core material after pressure filtration through a microporous filter membrane with a filtration accuracy of 0.5μm;

[0061] S2, get 5g gelatin and dissolve in chlorine dioxide core material, dissolve 60min in 40 ℃ of constant temperature water bath, obtain aqueous phase solution, standby;

[0062] S3, dissolve 10g PLA in 100ml of dichloromethane, stir for 120min under mechanical stirring condition, make it dissolve completely, obtain oil phase solution;

[0063] S4. Measure 30ml of oil phase solution and place it on a mechanical stirrer and stir, add 3ml of Span 80 emulsifier while stirring, add 3ml of water phase solution after stirring evenly, stir at 1200r / min for 2min, then add 20ml of liquid paraffin, After continuing to stir for 1 min, transfer and st...

preparation example 3

[0065] The preparation of chlorine dioxide microcapsules includes the following steps:

[0066] S1, configure 100ml of stable chlorine dioxide aqueous solution with a concentration of 37000mg / L, and obtain chlorine dioxide core material after pressure filtration through a microporous filter membrane with a filtration accuracy of 0.5μm;

[0067] S2, get 10g gelatin and dissolve in chlorine dioxide core material, dissolve in 40 ℃ of constant temperature water bath for 60min, obtain aqueous phase solution, standby;

[0068] S3, dissolve 20g PLA in 100ml of dichloromethane, stir for 120min under mechanical stirring condition, make it dissolve completely, obtain oil phase solution;

[0069] S4. Measure 30ml of oil phase solution and place it on a mechanical stirrer and stir, add 6ml of Span 80 emulsifier while stirring, add 1.5ml of water phase solution after stirring evenly, stir at 2000r / min for 3min, then add 20ml of liquid paraffin , continue stirring for 1min, transfer to a m...

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Abstract

The invention discloses a kaolin product for catalytic cracking catalyst and a preparation method thereof, belonging to the technical field of kaolin preparation. The technical points include the following steps: S1, the excavated product contains 90% or more of halloysite by mass, after being crushed, screened to obtain the kaolin base material; S2, making 100-120 parts of the kaolin base material into a slurry , add 50-60 parts of chlorine dioxide microcapsules to the slurry, add 0.5-0.8 parts of dispersant, blend and stir evenly; S3, adjust the pH value of the slurry to 6-7, and then add 0.65-0.9 parts to the slurry part sodium dithionite, and stir evenly; S4, after concentrating the slurry, carry out pressure filtration and dehydration to obtain a filter cake; S5, after drying the filter cake, crush it to obtain a finished product, which has the ability to improve the porosity and specific surface area of ​​halloysite The advantages.

Description

technical field [0001] The invention belongs to the technical field of kaolin preparation, and more particularly relates to a kaolin product for catalytic cracking catalyst and a preparation method thereof Background technique [0002] Catalytic cracking is a process in which a series of chemical reactions occur in crude oil at a certain temperature (460 ° C ~ 550 ° C) with the participation of catalysts. The study of catalytic process and catalytic cracking catalyst (FCC) is a core technology and an important scientific and technological basis for today's petrochemical industry. In the development history of catalytic cracking catalysts, it has experienced three major changes. For the first time, artificially synthesized aluminum silicate gel was used to replace activated clay, which increased the activity by 2 to 3 times and improved the selectivity significantly. The second time was to switch to molecular sieves, which greatly improved the level of catalytic cracking, i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B33/40B01J21/16B01J35/10
CPCC01B33/40B01J21/16B01J35/1004C01P2006/12C01P2006/17
Inventor 杨龙和
Owner 漳州阳盛工贸有限公司
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