Process of PSA Nitrogen Generator Plant
The adsorption bed of PSA nitrogen generator plant must contain at least two steps: adsorption (at higher pressure) and desorption (at lower pressure) with the operation periodically repeat. If there is only one adsorption bed, the nitrogen production is intermittent. In order to continuously obtain the nitrogen products, two adsorption beds are usually set in the nitrogen generator plant, and some necessary auxiliary steps are set such as pressure equalization and nitrogen flushing to save energy, reduce consumption and operate stably.
Each adsorption bed generally goes through the steps of adsorption, forward pressure release, reactivation, flushing, replacement, pressure equalization and pressure rise, and the operation is repeated periodically.