Principle of carbon molecular sieve nitrogen air separation

The product is carbon molecular sieve adsorbent is a porous material composed of carbon, pore structure model for disordered accumulation of carbon. Carbon molecular sieves non-stoichiometric compounds, important properties which is based on its cellular structure. It is the ability to separate the air, depending on a variety of gases in the air, carbon molecular sieve pore diffusion different speeds or different adsorption, or both effects simultaneously. Under equilibrium conditions, the carbon molecular sieve adsorption of oxygen and nitrogen is very close, but oxygen molecules through the diffusion rate of nitrogen molecules faster narrow voids than molecular sieve olecular sieve systems, carbon molecular sieve nitrogen air separation is based on this performance, before the time far from equilibrium conditions, the separation by the PSA process so that the nitrogen gas from the air
Third, the device is generally referred to as nitrogen machine. Which process is the use of pressure swing adsorption method at room temperature (referred to as PSA), PSA for pyrogen adsorption separation process, carbon molecular sieve is adsorbed component (mainly oxygen molecules) absorption capacity due to the above principle in the charge pressure, when the gas adsorption, the exhaust gas desorption during depressurization, regeneration carbon molecular sieve. At the same time, the bed gas phase enriched nitrogen gas through the bed a product, each step even for loop operations.
PSA process cycle operations include: pressurized gas production; grading; buck, exhaust; then pressurized gas production; ...... several working stages, the formation of cyclic operation. Depending on the method of its regeneration process can be divided into vacuum regeneration regeneration processes and atmospheric processes.
PSA Nitrogen device according to the user's needs may include compressed air purification systems, pressure swing adsorption systems, process control systems valves (vacuum regeneration with a vacuum pump needed), and nitrogen supply system