Adjustment process for an oxygen production unit with different setpoints for each adsorber

摘要

Process for adjusting a unit for separating a gas stream comprising N adsorbers, with N ≥ 2, each according to an adsorption cycle of the PSA, VSA or VPSA type with a shift of one phase time, said process of adjustment comprising the following steps: during at least one step of the adsorption cycle, a physical parameter linked to the gas flow entering and / or leaving the adsorber is continuously measured; at least one characteristic value of the step chosen in step a) which is chosen from the values of the physical parameter measured in step a) or a function of these values is determined; this characteristic value is compared with a target value; and in the event of a difference between the value of this or these difference (s) and the target values, the flow of the gas stream is modified in order to obtain the target value, with steps a) to d) carried out for each adsorber and with at minus one adsorber having a target value different from the target values of the other adsorbers.