Patent ID: 11946693
Assignee: L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE
Field: Chemical engineering (Chemistry)
Classification: CPC F | IPC F

Claim 1:
2. The system as claimed in claim 1, wherein the predictive value of the argon flow rate depends on an air flow rate (Q*air) which is delayed relative to the air flow rate at the inlet of the assembly of at least one distillation column, said delayed air flow rate being defined as follows:

Q*air(t)=Qair(t) while Qair(t)−Qair(t−δ)<R 

if, at t=t0, R≤Qair(t0)−Qair(t0−δ), then:

Q*air(t)=Qair(t0−λ) for all t∈[t0;t0+λ]

where:
Q*air(t) is the delayed flow rate at time t,
Qair(t) is the air flow rate at the inlet of the assembly of at least one distillation column at time t,
t0 is any time,
λ and δ are predetermined periods of time,
R is a predetermined positive threshold.