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A high-temperature carbonized ceramic-based molecular sieve membrane oxygen generator and its application method

A technology of high temperature carbonization and oxygen generation device, applied in chemical instruments and methods, oxygen/ozone/oxide/hydroxide, inorganic chemistry, etc., can solve the problem of poor oxygen production efficiency, poor recyclability, and low purity problem, to achieve high affinity and avoid the effect of reducing oxygen production efficiency

Active Publication Date: 2022-03-18
HUNAN VENTMED MEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the molecular sieves used in the prior art are zeolite molecular sieves, whose adsorption is based on the principle of physical adsorption, and their recyclability is poor, and before the oxygen production and separation of oxygen and nitrogen, the air needs to be cold-treated, and the separation of oxygen and nitrogen is carried out at room temperature , for nitrogen adsorption and desorption
This makes the oxygen production efficiency poor, the purity is not high, and the molecular sieve recycling rate is poor and other defects

Method used

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  • A high-temperature carbonized ceramic-based molecular sieve membrane oxygen generator and its application method
  • A high-temperature carbonized ceramic-based molecular sieve membrane oxygen generator and its application method
  • A high-temperature carbonized ceramic-based molecular sieve membrane oxygen generator and its application method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Such as figure 1 As shown, a high-temperature carbonized ceramic-based molecular sieve membrane oxygen production device provided in this embodiment includes an air source inlet 1, an air compressor 2, a C-level filter 3, and 4 and 5 air storage tanks connected in sequence. High-temperature carbonized ceramic-based molecular sieve adsorption unit 5, vacuum pump 6, oxygen gas storage tank 7, nitrogen gas storage tank 8, the end of the oxygen gas storage tank 7 is provided with a first stop valve 7-3, and the end of the nitrogen gas storage tank 8 is provided with a second Two check valves 8-3;

[0054] The vacuum pump 6 is set in the high-temperature carbonized ceramic-based molecular sieve adsorption unit 5, the high-temperature carbonized ceramic-based molecular sieve adsorption unit 5 communicates with the oxygen gas storage tank 7 through the oxygen shunt pipeline 7-2, and the high-temperature carbonized ceramic-based molecular sieve adsorption unit 5 communicates wi...

Embodiment 2

[0083] The only structural difference between this embodiment and Embodiment 1 is that the device provided by this embodiment contains four high-temperature carbonized ceramic-based molecular sieve adsorption units 5 .

[0084] The raw materials for the preparation of the oxygen-ion conductive carbonized ceramic-based molecular sieve membrane used in the molecular sieve in the adsorption tower of the device provided in this embodiment include the following components in parts by weight:

[0085]

[0086] The diameter of the nano carboxymethyl cellulose sodium with a degree of polymerization of 500 used in this embodiment is 65 nm.

[0087] Among them, the Sr 0.3 Ce 0.7 co 0.2 Al 0.8 The preparation method of O hollow fiber membrane, comprises the following steps:

[0088] S1: Add 17.5 parts by weight of EDTA to an aqueous solution of ammonium hydroxide with a mass fraction of 26% to form a water-soluble EDTA ammonium salt solution with a concentration of 3.3M;

[0089]...

Embodiment 3

[0111] The structural difference between this example and Example 1 is only that the device provided by this example contains three high-temperature carbonized ceramic-based molecular sieve adsorption units 5 .

[0112] The raw materials for the preparation of the oxygen-ion conductive carbonized ceramic-based molecular sieve membrane used in the molecular sieve in the adsorption tower of the device provided in this embodiment include the following components in parts by weight:

[0113]

[0114] The nano lignosulfonate with a degree of polymerization of 480 used in this example has a diameter of 80 nm.

[0115] Sr 0.1 Ce 0.9 co 0.1 Al 0.9 o 0.5 The preparation method of hollow fiber membrane comprises the following steps:

[0116] S1: Add 15 parts of EDTA to an aqueous ammonium hydroxide solution with a mass fraction of 25% to form a water-soluble EDTA ammonium salt solution with a concentration of 3M;

[0117] S2: Mix SrCl according to the molar ratio of 1:9:1:9 2 ...

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Abstract

The invention provides a high-temperature carbonized ceramic-based molecular sieve membrane oxygen generator and a method for using the same, which include sequentially connected air source inlets, an air compressor, a C-level filter, an air storage tank, and 3-5 high-temperature carbonized ceramic-based molecular sieve membranes. Molecular sieve adsorption unit, vacuum pump, oxygen gas storage tank, nitrogen gas storage tank, the end of the oxygen gas storage tank is provided with a first check valve, and the end of the nitrogen gas storage tank is provided with a second check valve; the vacuum pump is set on a high-temperature carbonized ceramic-based molecular sieve In the adsorption unit, the high-temperature carbonized ceramic-based molecular sieve adsorption unit communicates with the oxygen storage tank through an oxygen distribution pipeline, and the high-temperature carbonized ceramic-based molecular sieve adsorption unit communicates with the nitrogen gas storage tank through a nitrogen distribution pipeline. The oxygen generating device provided by the present invention has the molecular sieve of the adsorption tower of oxygen ion conductive carbonized ceramic-based molecular sieve membrane with good recycling rate, and absorbs and desorbs oxygen ions under high temperature and vacuum to efficiently separate oxygen and nitrogen to improve the purity of oxygen production.

Description

technical field [0001] The invention belongs to the technical field of oxygen generators, and in particular relates to an oxygen generator with a high-temperature carbonized ceramic-based molecular sieve membrane and a use method thereof. Background technique [0002] Oxygen is the first element to sustain life, and it is a powerful guarantee for the combat effectiveness of troops in plateau areas. Whether the wounded can inhale oxygen in time during the golden or platinum time of treatment is an important factor to reduce the casualty rate and improve the ability to treat war injuries. At present, the commonly used oxygen supply methods mainly include oxygen storage, physical oxygen production and chemical oxygen production. The most widely used physical oxygen production is to enrich oxygen through the selective adsorption of oxygen by molecular sieves under variable pressure conditions. Although it can meet the use under most conditions, it is still not practical for pla...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B13/02C04B26/28
CPCC01B13/0255C01B13/0274C04B26/285C04B24/26C04B24/045C04B24/2688C04B24/16C04B14/4618C04B24/18
Inventor 刘哲唐聪能吴超民杜春玲袁再鑫郑其昌
Owner HUNAN VENTMED MEDICAL TECH CO LTD
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