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

CN111484027BActive Publication Date: 2022-06-24漳州阳盛工贸有限公司

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Patent Information

Authority / Receiving Office: CN · China
Patent Type: Patents(China)
Current Assignee / Owner: 漳州阳盛工贸有限公司
Publication Date: 2022-06-24

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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.

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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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