Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method of high activity fluid catalytic cracking catalyst

A fluidized catalytic cracking and catalyst technology, which is used in catalyst activation/preparation, catalytic cracking, physical/chemical process catalysts, etc. Simplified preparation process and high content

Inactive Publication Date: 2005-06-01
CHINA PETROLEUM & CHEM CORP
View PDF2 Cites 3 Cited by
  • 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

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

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%, spray molding to obtain 1650g 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.

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

The invention relates to a catalytic cracking catalyst, which is characterized in that a high-activity catalytic cracking (FCC) catalyst is prepared by using kaolin as the main raw material through in-situ crystallization technology, and the preparation process is that kaolin, solid seed crystals, auxiliary agents, and organic dispersants Kaolin microspheres A are formed by spray drying with adhesives; metakaolin microspheres are obtained by high-temperature roasting; and then crystallized with sodium silicate and sodium hydroxide to obtain NaY zeolite content of 20-70%, zeolite Crystallized microspheres with a silicon-aluminum ratio of 4.0-6.0. After one roasting and NH 4 + 、Re 3 + Three exchanges yielded the catalyst product. The catalyst has the characteristics of strong resistance to heavy metals, high cracking activity, good activity 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 shap...

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
Patent Type & Authority Patents(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