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

Horizontal reaction device used for preparing molecule sieve catalysts and preparation method

A technology of reaction devices and catalysts, applied in molecular sieve catalysts, chemical/physical/physical-chemical fixed reactors, chemical instruments and methods, etc., can solve the problems of reaction deviation, difficult mixing of materials quickly and uniformly, and reduction of reaction effect and efficiency , to achieve the effect of easy installation, increased mixing efficiency and simple design

Active Publication Date: 2015-10-21
CHINA TIANCHEN ENG +1
View PDF5 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the devices and methods for preparing molecular sieve catalysts are usually carried out in a closed vertical stirred tank, and the materials are not easy to mix quickly and uniformly during the mixing process, which reduces the reaction effect and efficiency. In addition, during the stirring process , the material sputtered to the wall of the kettle is difficult to mix with the main body of the material, which will also cause the deviation of the reaction

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
  • Horizontal reaction device used for preparing molecule sieve catalysts and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Preparation of SAPO molecular sieve: In the production process of SAPO molecular sieve, nitrogen gas is used to replace the air in the kettle. The nitrogen gas enters through the loading and unloading channel, and the original gas in the kettle is discharged through the exhaust channel. The preheating process of feed and heat transfer oil is carried out at the same time, and the ratio of silicon to aluminum is 0.6, so that the temperature of the reactor is maintained at the reaction temperature of 150 degrees. After the air intake is completed, the exhaust channel is closed, the molecular sieve raw material enters through the loading and unloading channel, and the stirring motor is turned on at the same time during the feeding process. After the material is completely injected, continue to feed nitrogen to ensure the pressure of the reaction.

[0052] During the reaction process, impurities such as alcohols need to be removed. Turn the kettle body to the bending part of...

Embodiment 2

[0054]Preparation of titanium-silicon molecular sieve: In the production process of titanium-silicon molecular sieve, nitrogen gas is used to replace the air in the kettle. The nitrogen gas enters through the loading and unloading channel, and the original gas in the kettle is discharged through the exhaust channel. The preheating process of feed and heat transfer oil is carried out at the same time, and the ratio of titanium to silicon is 0.8, so that the temperature of the reactor is maintained at the reaction temperature of 150 degrees. After the air intake is completed, the exhaust channel is closed, the molecular sieve raw material enters through the loading and unloading channel, and the stirring motor is turned on at the same time. After the material is completely injected, continue to feed nitrogen to ensure the pressure of the reaction.

[0055] During the reaction process, impurities such as alcohols need to be removed. Turn the kettle body to the bending part of the...

Embodiment 3

[0057] Molecular sieve modification: During the modification process, the raw molecular sieve powder and the template agent are mixed outside to form a slurry, and the slurry enters the horizontal kettle through the loading and unloading channel, and the stirring motor is turned on at the same time. After the material is completely injected, continue to feed nitrogen to ensure the pressure of the reaction. After the modification is completed, open the loading and unloading channel, and slowly discharge the material with its own pressure. If necessary, nitrogen can be added midway to maintain the pressure and continue to discharge.

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 provides a horizontal reaction device used for preparing molecule sieve catalysts and a preparation method. The device comprises a reaction kettle, a heat conduction oil shell, a feeding and discharging pipeline and an exhaust pipeline. A stirring paddle is arranged inside the reaction kettle, a stirring shaft of the stirring paddle is horizontally arranged, and the stirring shaft drives the reaction kettle to rotate under driving of a motor. The heat conduction oil shell is located on the outer side of the reaction kettle, and the feeding and discharging pipeline and the exhaust pipeline are horizontally arranged. One end of the feeding and discharging pipeline and one end of the exhaust pipeline are located on the outer side of the device, at least one valve is arranged on the feeding and discharging pipeline, at least one valve is arranged on the exhaust pipeline respectively, the other ends of the feeding and discharging pipeline and the exhaust pipeline extend into the reaction kettle, the tail end of the feeding and discharging pipeline gets close to the wall of the reaction kettle through bending, and only one material inlet and outlet is formed in the device. The horizontal reaction device is easy to design and install, convenient to manufacture, small in investment and convenient to modify; in the preparation process of the catalysts, a reaction kettle body rotates integrally, in this way, stirring efficiency is greatly improved, and the catalyst materials are evener.

Description

technical field [0001] The invention belongs to the technical field of chemical equipment, and in particular relates to a horizontal reaction device, more specifically to a horizontal reaction device and a preparation method for preparing a titanium-silicon molecular sieve catalyst. Background technique [0002] In the prior art, the devices and methods for preparing molecular sieve catalysts are usually carried out in a closed vertical stirred tank, and the materials are not easy to mix quickly and uniformly during the mixing process, which reduces the reaction effect and efficiency. In addition, during the stirring process , the material sputtered to the wall of the kettle is difficult to mix with the main body of the material, which will also cause the deviation of the reaction. [0003] The preparation reactor of molecular sieve catalyst in the prior art is used for the process of large-scale mixing, and the realization of the process is relatively poor, and the horizont...

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 Applications(China)
IPC IPC(8): B01J19/18B01J19/14B01J29/89
Inventor 王海国李欢钱震陈晨杨利强左宜赞石华刘俊生
Owner CHINA TIANCHEN ENG