PSA craft- Nitrogen making process: Pressure Swing Adsorption nitrogen making machine

Operating principle: The pressure swing adsorption equipment is mainly composed of A and B two adsorption towers equipped with carbon molecular sieve and control system. When compressed air (pressure is generally 0.8MPa) passes through Tower A from bottom to top, oxygen, carbon dioxide and water are absorbed by the carbon molecular sieve, while nitrogen is passed through and discharged from the top of the tower. When the adsorption of molecular sieve in tower A is saturated, it is switched to tower B for the adsorption process and regeneration of the molecular sieve in tower A at the same time. The so-called regeneration, the adsorption tower gas discharged to the atmosphere so that the pressure quickly reduced to normal pressure, so that the molecular sieve adsorption of oxygen, carbon dioxide and water from the molecular sieve release process.