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Zero-emission oxidation device and method for producing hydrogen peroxide by anthraquinone method

A hydrogen peroxide and oxidation device technology, applied in chemical instruments and methods, peroxide/peroxyhydrate/peroxyacid/superoxide/ozonide, separation methods, etc., can solve the problem of inability to reduce gas phase composition, etc. problems, to achieve the effect of eliminating fugitive emissions, ensuring safety, and improving process economy

Inactive Publication Date: 2020-09-29
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current treatment method is to set up a nitrogen line on the top of the tank, and continuously blow in nitrogen to dilute the gas space, but because the amount of nitrogen is too small, it is impossible to reduce the gas phase composition below the lower explosion limit

Method used

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  • Zero-emission oxidation device and method for producing hydrogen peroxide by anthraquinone method
  • Zero-emission oxidation device and method for producing hydrogen peroxide by anthraquinone method

Examples

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Effect test

Embodiment 1

[0058] Hydrogen peroxide was prepared using an oxidation apparatus for producing hydrogen peroxide by the anthraquinone method as follows.

[0059] Such as figure 1 As shown, the oxidation device includes an oxidation tower 4 and an oxidation liquid receiving tank 7; wherein, the oxidation tower 4 supplies oxygen-enriched gas through a gas supply unit 3 (air compressor), and introduces a hydrogenation liquid through a hydrogenation liquid inlet 1 for The hydrogenated liquid and the oxygen-enriched gas undergo an oxidation reaction to obtain an oxidized liquid containing hydrogen peroxide, and the oxidized liquid is exported through the oxidized liquid outlet pipe 6 and stored in the oxidized liquid receiving tank 7;

[0060] The gas supply unit 3 is arranged at the top of the oxidation tower 4, and the hydrogenated liquid inlet 1 is arranged at the bottom of the oxidation tower 4;

[0061] The tail gas outlet of the oxidizing liquid receiving tank 7 is connected to the oxygen...

Embodiment 2

[0067] Use the method for embodiment 1 to prepare hydrogen peroxide, the only difference is that use figure 2 The oxidation device shown, the oxidation device with the figure 1 The difference of the shown oxidation device is: the gas supply unit 3 and the hydrogenated liquid inlet 1 are all arranged at the bottom of the oxidation tower 4; during the reaction, the hydrogenated liquid and the oxygen-enriched gas flow from bottom to bottom in the tower. and upward flow, so that the hydrogenated liquid and the oxygen-enriched gas are oxidized in parallel to obtain the oxidized liquid containing hydrogen peroxide.

[0068] Prepare hydrogen peroxide by using the oxidation device and method for producing hydrogen peroxide by the anthraquinone method of the above-mentioned embodiment 1-2, compared with the existing oxidation device and method that do not reuse the tail gas of the oxidizing solution receiving tank, it can be used without In addition, in the case of purchasing nitroge...

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Abstract

The invention relates to the field of hydrogen peroxide preparation, and discloses a zero-emission oxidation device and method for producing hydrogen peroxide by an anthraquinone method. The oxidationdevice comprises an oxidation tower (4) and an oxidation liquid receiving tank (7), wherein the oxidation tower (4) supplies oxygen-enriched gas through a gas supply unit (3), introduces hydrogenation liquid through a hydrogenation liquid inlet (1), and is used for carrying out an oxidation reaction on the hydrogenation liquid and the oxygen-enriched gas to obtain oxidation liquid containing hydrogen peroxide, leading out the oxidation liquid through an oxidation liquid leading-out pipe (6) and storing the oxidation liquid in the oxidation liquid receiving tank (7). The device and the methodhave good safety, can ensure safe and stable operation of the device, and reasonably utilize oxygen generated by decomposition of hydrogen peroxide in the oxidation liquid receiving tank.

Description

technical field [0001] The invention relates to the field of hydrogen peroxide preparation, in particular to a zero-emission oxidation device and method for producing hydrogen peroxide by an anthraquinone method. Background technique [0002] Hydrogen peroxide is one of the main basic chemical products in the world. At present, the anthraquinone hydrogen peroxide production process is its main production method. The production process of the anthraquinone method is: in the presence of a catalyst, under a certain temperature and pressure, the anthraquinone in the working solution made of alkyl anthraquinone and a mixed organic solvent according to a certain ratio undergoes a hydrogenation reaction with hydrogen to produce Corresponding hydroanthraquinone (hydrogenation stage), at this time, the working liquid becomes a hydrogenated liquid; then, the hydrogenated liquid enters the oxidation tower, where the hydroanthraquinone reacts with oxygen to produce anthraquinone and hyd...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B15/023B01D53/00
CPCB01D53/002C01B15/023
Inventor 贾学五费轶刘静如张帆王振刚徐伟
Owner CHINA PETROLEUM & CHEM CORP
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