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System and method for preparing hydrogen peroxide through anthraquinone method under supergravity condition

A technology of hydrogen peroxide and anthraquinone method, applied in chemical instruments and methods, peroxide/peroxyhydrate/peroxyacid/superoxide/ozonide, inorganic chemistry, etc., can solve the problem of low catalyst efficiency, Small investment, large equipment volume and other problems, to achieve the effect of fast gas-liquid renewal speed

Active Publication Date: 2017-02-22
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Aiming at the problems of low mass transfer efficiency, large equipment volume, low production capacity, and low catalyst efficiency in the method for synthesizing hydrogen peroxide by catalytic oxidation using 2-ethylanthraquinone as raw material in the prior art, the purpose of the present invention is to provide a A system and method for preparing hydrogen peroxide by using the anthraquinone method under high gravity conditions. The system for preparing hydrogen peroxide by the anthraquinone method has short reaction time, high hydrogenation efficiency, high mass transfer efficiency, and easy operation. Simple, small equipment size and small investment

Method used

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  • System and method for preparing hydrogen peroxide through anthraquinone method under supergravity condition
  • System and method for preparing hydrogen peroxide through anthraquinone method under supergravity condition
  • System and method for preparing hydrogen peroxide through anthraquinone method under supergravity condition

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Effect test

Embodiment 1

[0083] A system for preparing hydrogen peroxide by anthraquinone method, said system comprising a high-gravity rotating packed bed 4, a gas delivery device, a liquid delivery device, a first preheating furnace 2, a second preheating furnace 5, a condenser 6, Product storage tank and liquid inlet pipe;

[0084] The high-gravity rotating packed bed 4 includes a shell, a reactor and a rotating device, the reactor is located in the shell, the wall of the reactor is filled with a hydrogenation catalyst, and the wall of the reactor is provided with through holes, and the reactor passes through the The through hole communicates with the shell; the rotating device is connected with the reactor to drive the reactor to rotate;

[0085] The through hole is circular and has a plurality of; the through hole is provided with a wire mesh; the interval between adjacent through holes is 1mm; the reactor is a hollow cylinder; the wall of the cylinder The thickness is 21mm; the radius of the cy...

Embodiment 2

[0096] A circulation system for the preparation of hydrogen peroxide by anthraquinone method, such as figure 1 shown. The system is the same as the system described in Embodiment 1 except that the product storage tank is also connected to the working fluid storage tank 12 .

[0097] Utilize the method for preparing hydrogen peroxide of above-mentioned system to comprise the steps:

[0098] (1) Fill the wall of the high-gravity rotating packed bed reactor with catalyst, heat the high-gravity rotating packed bed to 50-80°C, pass in hydrogen for reduction and activation for 1-24 hours, and exhaust it with nitrogen; make the high-gravity The rotating packed bed rotates at a speed of 0-3000r / min;

[0099](2) The working liquid with a temperature of 55-75°C is sprayed from the liquid inlet pipe onto the inner wall of the rotating reactor, and the hydrogen gas with a temperature of 55-75°C flows through the catalyst in the reactor wall in the axial phase or radial direction, On th...

Embodiment 3

[0103] A kind of multistage reaction system that is used for anthraquinone method to prepare hydrogen peroxide, described system comprises three high-gravity rotating packed beds 4 (the first high-gravity rotating packed bed, the second high-gravity rotating packed bed and the third high-gravity rotating packed bed Rotating packed bed), gas delivery device, liquid delivery device, first preheating furnace 2, second preheating furnace 5, condenser 6, product storage tank and liquid inlet pipe;

[0104] Each high-gravity rotating packed bed 4 includes a shell, a reactor and a rotating device, the reactor is located in the shell, the wall of the reactor is filled with a hydrogenation catalyst, and the wall of the reactor is provided with through holes, and the reactor passes through The through hole is communicated with the shell; the rotating device is connected with the reactor to drive the reactor to rotate;

[0105] The through hole is circular and has a plurality of; the thr...

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Abstract

The invention provides a system and method for preparing hydrogen peroxide through an anthraquinone method under the supergravity condition. The system comprises a supergravity rotating packed bed, a gas conveying device, a liquid conveying device, a first preheating device and a second preheating device. The supergravity rotating packed bed comprises a shell, a reactor and a rotating device. The reactor is located in the shell, the wall of the reactor is filled with a catalyst, through holes are formed in the wall of the reactor, and the reactor is communicated with the shell through the through holes. The rotating device is connected with the reactor and used for driving the reactor to rotate. The system and method for preparing hydrogen peroxide through the anthraquinone method have the advantages of being short in reaction time, high in hydrogenation efficiency and mass transfer efficiency, easy to operate, small in equipment size, low in investment and the like when used for preparing hydrogen peroxide.

Description

technical field [0001] The invention belongs to the technical field of hydrogen peroxide preparation, and relates to a system and method for preparing hydrogen peroxide by anthraquinone method under supergravity conditions, in particular to a method for preparing hydrogen peroxide by hydrogenation of anthraquinone derivatives under supergravity conditions systems and methods. Background technique [0002] Hydrogen peroxide is an important chemical raw material and fine chemical product. Because it only generates water and active oxygen in the process of participating in chemical reactions, hydrogen peroxide has the characteristics of no secondary pollution. It is called "green chemical" and has been widely used Used in papermaking, textiles, chemical synthesis, electronics, food processing, medicine, and environmental protection. Nursing and many other fields. It is one of the fastest growing chemicals in the past 10 years. At present, the production of hydrogen peroxide ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B15/023
CPCC01B15/023
Inventor 徐泉周红军吕昀祖
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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