Pressure swing adsorption system and pressure swing adsorption method without connection line between adsorber chamber outlet and gas discharge lines

摘要

The pressure swing adsorption plant for the separation of a first gas of a gas mixture such as nitrogen from a second gas such as oxygen, comprises three adsorption chambers (15, 16) for adsorbing the second gas, with an adsorber chamber inlet and an adsorber chamber outlet, and a connection replacing device that is connectable with the adsorber chamber outlet alternatively with a first gas discharge pipe for discharging the first gas also with a second gas discharge pipe for discharging the second gas. The adsorption chambers are alternatively connected with gas discharge lines. The pressure swing adsorption plant for the separation of a first gas of a gas mixture such as nitrogen from a second gas such as oxygen, comprises three adsorption chambers (15, 16) for adsorbing the second gas, with an adsorber chamber inlet and an adsorber chamber outlet, and a connection replacing device that is connectable with the adsorber chamber outlet alternatively with a first gas discharge pipe for discharging the first gas also with a second gas discharge pipe for discharging the second gas. The adsorption chambers are alternatively connected with the first and second gas discharge lines. The adsorption chamber outlet is directly connected with the first and/or second gas discharge line. The first gas discharge line is subjected with a high pressure of 8 bar and the second gas discharge line is subjected with a pressure of 1 bar compare to the high pressure. The connection replacing device is connected only to the adsorption chamber with the second gas discharge line. The connection replacing device is formed in such a way that n adsorption chamber outlets are connected with the first gas discharge line and m adsorption chamber outlets are connected with the second gas discharge line, where the ratio of n/m is 10. The adsorption chamber outlets are connected with an input collection chamber. The adsorption chamber is subjected with a pressure of 9-10 bars. The second gas discharge line partially passes within the first gas discharge line, which is rotatable in such a way that two adsorption chamber outlets are alternatively connected at the second gas discharge line. The second gas discharge line comprises a swivel hinge and/or a swinging arc. The adsorption chamber outlet is subdivided into two individual adsorption chamber outlets. The first individual adsorption chamber outlet is formed for the connection at the first gas discharge line and a second individual adsorption chamber outlet for the connection at the second gas discharge line. The first and/or the second individual adsorption chamber outlet is lockable through separate connection element or through an individual connection element. Two adsorber chambers are partially housed in a common chamber that forms a part of the second gas discharge line. The connection replacing device comprises a hollow body element that is rotorically and/or translationally relocatable so that the rotation and/or the translation of the hollow body element outlet is alternatively connected with the first and second gas discharge. The hollow body element is formed as hollow cylinder that has an opening in the area of its mantle surface. A connection element of the adsorber chamber outlet and/or a connection element of the adsorber chamber outlet is areawisely formed in cone-shaped manner. A displacement of the connection element and/or the adsorber chamber is pneumatically controllable by pneumatic cylinder. The gas separator is arranged in such a way that a control gas for controlling the displacement from the stream of the gas mixture to be separated is produced. An independent claim is included for a pressure swing adsorption process.