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Pressure swing adsorption device and control method thereof

A technology of pressure swing adsorption and control method, which is applied in the direction of separation method, chemical instrument and method, gas treatment, etc. It can solve the problems of uneven flow rate of raw gas products and reduced investment, so as to save equipment investment, avoid bias flow, The effect of low sealing performance requirement

Active Publication Date: 2017-12-12
SOUTHWEST RES & DESIGN INST OF CHEM IND
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Problems solved by technology

[0007] The purpose of the present invention is to provide a pressure swing adsorption device, which greatly reduces the investment compared with the prior art, but can solve the problems existing in the prior art that it is difficult to take into account the two pressure equalization processes, the raw material gas and the product gas within a short process time. Defects of uneven flow and inability to use two gases at the same time in different proportions for final boost

Method used

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  • Pressure swing adsorption device and control method thereof
  • Pressure swing adsorption device and control method thereof

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Embodiment Construction

[0030] The following non-limiting examples illustrate the invention.

[0031] A pressure swing adsorption device, a program control regulating valve 4 is respectively connected to the main pipe at the inlet and outlet ends of the adsorber (such as the adsorption tower 1 shown in this embodiment) of the pressure swing adsorption device, and after the program control regulating valve 4 , and then connected with other corresponding program-controlled valves 5 through pipelines.

[0032] As an example, such as figure 1 As shown, the pressure swing adsorption device is composed of 4 or more adsorption towers 1 and a program-controlled valve 5 to form a continuous operation system. On the adsorption tower inlet 2 and adsorption tower outlet 3 of each adsorption tower 1 of the pressure swing adsorption device A program control regulating valve 4 is respectively connected, and after the program control regulating valve 4 is connected with other corresponding program control valves 5 ...

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Abstract

The invention discloses a pressure swing adsorption device and a control method thereof and belongs to the field of pressure swing adsorption devices for gas separation. Each of an adsorption device inlet end general pipe and an adsorption device outlet end general pipe of the pressure swing adsorption device is connected with a program control regulation valve; after being connected with the program control regulation valves, the adsorption device inlet end general pipe and the adsorption device outlet end general pipe are connected with corresponding program control valves through pipelines. Compared with the prior art, the investment is greatly reduced and the defects in the prior art that two times of pressure equalization processes are difficult to consider within relatively short time, the gas flow of a raw material gas product is not uniform and final pressure boosting cannot be carried out at the same time by utilizing two types of gas at different ratios can be solved.

Description

technical field [0001] The invention belongs to the field of pressure swing adsorption devices for gas separation. Background technique [0002] In the existing traditional pressure swing adsorption device, a set of program-controlled valves is often shared by the two pressure equalization steps, such as the second equalization and the third equalization share a set, the fourth equalization and the fifth equalization share a set, etc. Since the diameter of the program-controlled valve is fixed, it is often difficult to take into account the two pressure equalization processes in a short process time. Either the pressure equalization speed is too fast, which will easily fluidize and pulverize the adsorbent; or the pressure equalization speed is too slow. , it is difficult to complete the pressure balance within a certain period of time, so that the effective gas is not fully recovered, resulting in a low yield. [0003] In the existing traditional pressure swing adsorption d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/047
CPCB01D53/0454B01D53/047B01D2259/40007B01D2259/40003
Inventor 张杰张宏宇王键刘昕冯良兴
Owner SOUTHWEST RES & DESIGN INST OF CHEM IND
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