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A pressurized oxidation chemical loop air separation oxygen production device and oxygen production method

A technology of oxygen production device and oxygen production method, which is applied in the direction of chemical instruments and methods, oxygen/ozone/oxide/hydroxide, oxygen preparation, etc., and can solve the problem of reducing the external heat energy of the oxygen carrier, excessive external heat energy supply, etc. problems, to achieve the effect of improving oxygen production efficiency and reducing external heat supply

Active Publication Date: 2019-01-15
WUHAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the existing conventional chemical chain high temperature separation air oxygen production technology, the external heat energy supply required for the reduction of oxygen carrier is too large, etc., and proposes a pressurized oxidation chemical chain separation air oxygen production equipment and method, using the method can significantly reduce the external heat energy required for oxygen carrier reduction

Method used

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  • A pressurized oxidation chemical loop air separation oxygen production device and oxygen production method
  • A pressurized oxidation chemical loop air separation oxygen production device and oxygen production method

Examples

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Effect test

Embodiment 1

[0025] Such as figure 1 A kind of preparation method of oxygen-enriched flue gas shown, comprises the following steps:

[0026] Step 1: After the air is pressurized by the air compressor 1, it exchanges heat with the oxygen-poor air through the heat exchanger 2, and the high-pressure air after the heat exchange is passed into the first reactor 3 through the first high-pressure air flow control valve 9, React with reduced oxygen carrier attached to a certain amount of inert monomer. The reduced oxygen carrier is Mn 3 o 4 , the inert monomer is Al 2 o 3 , the mass ratio of the two is Mn 3 o 4 :Al 2 o 3 =1.69:1. The oxidation reaction pressure is 15 atm, and the oxidation reaction temperature is 930°C. The reacted oxygen deficient air passes through the first oxygen deficient flow control valve 13, then passes through the gas turbine 17 to perform external work, and then is cooled and discharged by the heat exchanger 2 after heat exchange. Stop feeding the high-pressur...

Embodiment 2

[0033] Such as figure 2 A kind of preparation method of pure oxygen shown, comprises the following steps:

[0034] Step 1: After the fresh air is pressurized by the air compressor 1, it exchanges heat with the oxygen-deficient air through the heat exchanger 2, and the high-pressure air after the heat exchange is passed into the first reactor 3 through the first high-pressure air flow control valve 9 , to react with the reduced oxygen carrier attached to a certain amount of inert monomer. The reduced oxygen carrier is Cu 2 O, the inert monomer is MgAl 2 o 4 , the mass ratio of the two is Cu 2 O: MgAl 2 o 4 =1:5.3. The oxidation reaction pressure is 10 atm, and the oxidation reaction temperature is 1070°C. The reacted oxygen deficient air passes through the first oxygen deficient flow control valve 13, then passes through the gas turbine 17 to perform external work, and then is cooled and discharged by the heat exchanger 2 after heat exchange. Stop feeding the high-pre...

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Abstract

The invention relates to a pressurized oxidation chemical chain air separation oxygen producing device and an oxygen producing method. The oxygen producing method comprises the following steps: firstly, pressurizing air by an air compressor and then introducing the pressurized air into reactors; enabling the pressurized air to react with a reduction state oxygen carrier; after the oxygen carrier is completely oxidized, stopping introducing the pressurized air; secondly, reducing the pressure in the reactors to atmospheric pressure, and then introducing normal pressure inert gas for carrying out reduction reaction to exhaust oxygen; taking out prepared oxygen by the inert gas, wherein two reactors alternatively and circularly work for continuous production. Compared with an existing chemical chain oxygen producing technology, the method disclosed by the invention has the advantages that oxygen producing power consumption can be remarkably reduced; meanwhile, the chemical chain air separation oxygen producing efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of air separation oxygen production, and in particular relates to a pressurized oxidation chemical chain air separation oxygen production device and an oxygen production method. Background technique [0002] The chemical chain oxygen production technology is a new oxygen production method. Compared with the cryogenic method to separate air to produce oxygen, it has the advantages of low energy consumption, low cost, and simple operation. The principle is to use the oxygen carrier in the oxygen release reaction. The oxygen release reaction occurs in the reactor to generate oxygen, and the oxygen carrier after oxygen release reacts with air in the oxidation reactor to realize oxidation regeneration. Depending on the type of carrier gas in the oxygen release reactor, oxygen-enriched gas or pure oxygen can be produced. However, the traditional chemical chain oxygen generation technology mostly focuses on the op...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B13/02
CPCC01B13/0203
Inventor 史彬吴二东鄢烈祥吴炜
Owner WUHAN UNIV OF TECH
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