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Method for mobile pressure swing adsorption oxygen production device

A pressure swing adsorption and production device technology, which is applied in the direction of oxygen preparation, separation methods, chemical instruments and methods, etc., can solve the problems of labor and material resources, poor safety, and high oxygen cost, and achieve improved safety, light weight, Effect of reducing oxygen cost

Pending Publication Date: 2020-12-04
CHENGDU YINGCHEN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the pure oxygen used in the gas cutting process is produced by a cryogenic device, then compressed to a pressure above 12.5 MPa by a compressor and put into a special 40-liter steel cylinder, and then transported to various users. The operating pressure is lower than 0.95MPa, which consumes a lot of manpower and material resources, not only the cost of oxygen is high, but also the safety is poor

Method used

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  • Method for mobile pressure swing adsorption oxygen production device
  • Method for mobile pressure swing adsorption oxygen production device
  • Method for mobile pressure swing adsorption oxygen production device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] figure 1 It is the operation steps of each section of the adsorption tower and the sequence diagram of the switch of the program-controlled valve in Embodiment 1 of the present invention.

[0026] figure 2 It is a process flow diagram of Embodiment 1 of the present invention.

[0027] The feed air composition of the present embodiment is as follows:

[0028] Component O 2

N 2

Ar CO 2

other ∑ Concentration (%) (V) 20.93 78.03 0.932 0.03 0.078 100

[0029] Temperature: ≤40℃

[0030] Pressure: 0.05MPa(G)

[0031] Such as figure 2 As shown, vacuum pump P0101, vacuum buffer tank V0101, program-controlled valve, PLC control system, instrumentation, process pipeline fittings, adsorption towers T0101A and T0101B form the first pressure swing adsorption section, and the adsorbent filled in the adsorption tower is 5A molecular sieve or lithium Molecular sieve, running single-tower adsorption, pressure equalization and vacuuming p...

Embodiment 2

[0055] image 3 It is the operation steps of each section of the adsorption tower and the sequence diagram of the switching of the program-controlled valve in Embodiment 2 of the present invention.

[0056] Figure 4 It is a process flow diagram of Embodiment 2 of the present invention.

[0057] The feed air composition of the present embodiment is as follows:

[0058] Component O 2

N 2

Ar CO 2

other ∑ Concentration (%) (V) 20.93 78.03 0.932 0.03 0.078 100

[0059] Temperature: ≤40℃

[0060] Pressure: 0.05MPa(G)

[0061] Such as Figure 4 As shown, vacuum pump P0101, vacuum buffer tank V0101, program-controlled valve, PLC control system, instrumentation, process pipeline fittings, adsorption towers T0101A and T0101B form the first pressure swing adsorption section, and the adsorbent filled in the adsorption tower is 5A molecular sieve or lithium Molecular sieve, running single-tower adsorption, pressure equalization and vacuumin...

Embodiment 3

[0087] Figure 5 It is the operation steps of each section of the adsorption tower and the sequence diagram of the switch of the program-controlled valve in Embodiment 3 of the present invention.

[0088] Figure 6 It is the process flow diagram of embodiment 3 of the present invention.

[0089] The feed air composition of the present embodiment is as follows:

[0090] Component O 2

N 2

Ar CO 2

other ∑ Concentration (%) (V) 20.93 78.03 0.932 0.03 0.078 100

[0091] Temperature: ≤40℃

[0092] Pressure: 0.05MPa(G)

[0093] Such as Figure 6 As shown, vacuum pump P0101, vacuum buffer tank V0101, program-controlled valve, PLC control system, instrumentation, process pipeline fittings, adsorption towers T0101A, T0101B and T0101C constitute the first pressure swing adsorption section, and the adsorbent filled in the adsorption tower is 5A molecular sieve Or lithium molecular sieve, run single-tower adsorption, pressure equalization an...

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Abstract

Provided is a method for a mobile pressure swing adsorption oxygen production device. The method comprises a first pressure swing adsorption section and a second pressure swing adsorption section which are serially operated. Most of nitrogen gas in dry raw air is adsorbed by a nitrogen balance selective adsorbent bed in the first pressure swing adsorption section. Oxygen-enriched mixed gas flows into a speed-selective adsorbent bed in the second pressure swing adsorption section so that oxygen is adsorbed by the speed-selective adsorbent bed, and the second pressure swing adsorption sections resolves high-concentration oxygen. A adsorption tower of the first pressure swing adsorption section undergoes at least four steps of adsorption A, product oxygen replacement P, vacuumization and series adsorption A1. The invention is small in size, low in weight, convenient in application and low in pressure. The cost of oxygen use is greatly reduced, and the safety of oxygen use is significantlyimproved.

Description

technical field [0001] The invention relates to the field of oxygen production by pressure swing adsorption technology, in particular to a method for a mobile pressure swing adsorption oxygen production device. Background technique [0002] At present, the pure oxygen used in the gas cutting process is produced by a cryogenic device, and then the pure oxygen is compressed to 12.5MPa or more by a compressor and put into a special 40-liter steel cylinder, and then transported to various users, and the users The operating pressure is lower than 0.95 MPa, which consumes a lot of manpower and material resources, not only the cost of oxygen is high, but also the safety is poor. Contents of the invention [0003] In view of the above problems, the present invention aims to provide a method for a mobile pressure swing adsorption oxygen production device with small size, light weight, easy to use and low pressure, which can greatly reduce the cost of oxygen use and greatly improve ...

Claims

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Application Information

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IPC IPC(8): C01B13/02B01D53/047B01D53/26
CPCC01B13/0259B01D53/047B01D53/261B01D2256/12B01D2259/40062B01D2257/80
Inventor 宋宇文
Owner CHENGDU YINGCHEN TECH CO LTD
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