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Preparation method of high activity fluid catalytic eracking catalyst

A fluidized catalytic cracking and catalyst technology, which is applied in the direction of catalyst activation/preparation, catalytic cracking, physical/chemical process catalysts, etc., can solve the problems that the catalyst’s anti-heavy metal ability needs to be improved and the preparation process is complicated, and achieve strong anti-heavy metal ability, Simplified preparation process and high content

Inactive Publication Date: 2003-07-16
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, not only the preparation process is complicated, but also the NaY provided cannot enter the pores of the microspheres well.
The anti-heavy metal ability of the catalyst obtained in this patent application still needs to be improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Add water to 2000g (dry basis) of kaolin, 10g ZnO, 80g NaY, and 60g sodium silicate to make a slurry with a solid content of 42%, and spray it to obtain 16500g of microspheres A.

Embodiment 2

[0030] 2000g (dry basis) of kaolin, 10g ZnO, 80g NaY, 60g sodium silicate, and 20g sodium polyacrylate were added with water to make a slurry with a solid content of 53%, and spray-molded to obtain 1800g of microspheres A.

Embodiment 3

[0032] Add water to 2000g (dry basis) of kaolin, 80g NaY, and 60g sodium silicate to make a slurry with a solid content of 35%, and spray it to obtain 1600g of microspheres A.

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PUM

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Abstract

A high-activity catalyst for catalytic cracking process is prepared from kaolinite, solid seed, assistant, organic disperser and adhesive through spray drying, shaping, microspheres, high-temp calcining, crystallizing reaction on sodium silicate and sodium hydroxide to obtain crystallized microspheres content of zeolit is 20-70%, ratio of zeolit silica-alumina is 4.0-6.0), calcining, and exchanging with NH4 and Re3 three times. Its advantages are high resistance to heavy metal, high activity and stability, and low cost.

Description

technical field [0001] The technology of the invention can be applied to the field of fluidized catalytic cracking (FCC) of petroleum processing. Specifically, the invention is a method for preparing a high-activity FCC catalyst by using kaolin as a main raw material through an in-situ crystallization technology. Background technique [0002] In-situ crystallization of kaolin to prepare FCC catalyst is to use kaolin as the basic raw material, form kaolin microspheres by beating and spray drying, and then roast the kaolin microspheres at high temperature to change the structure and properties of kaolin, and then mix it with other solutions. to crystallize. During the crystallization process, active silica and alumina are converted into NaY zeolite, and then exchanged and calcined to obtain a full kaolin-type zeolite catalyst. The so-called "in-situ crystallization" means that during the crystallization process of kaolin microspheres, their shape and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J37/00C10G11/02C10G11/18
Inventor 苏建明达建文刘剑利徐兴忠吴莱萍靳丽君刘文波
Owner CHINA PETROLEUM & CHEM CORP
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