초록 ▼

A device for the separation of gas by adsorption, of the so-called VSA or MPSA type, comprises, between a utilization line (L) and a source (S) of gaseous mixture to be separated, at least one module (M) comprising in series a reversible rotatable machine (R), typically a Roots, an adsorber (A) and

A device for the separation of gas by adsorption, of the so-called VSA or MPSA type, comprises, between a utilization line (L) and a source (S) of gaseous mixture to be separated, at least one module (M) comprising in series a reversible rotatable machine (R), typically a Roots, an adsorber (A) and a shut-off valve (V). The rotary machine (R) is alternately actuated, in one direction during a first phase of pressurization and of production and then, in the other direction, during a second phase of depressurization and desorption. Used particularly in the production of small and medium volumes of oxygen in modular installations.

대표청구항 ▼

Process for using a device for the separation of gas by adsorption, said device comprising at least one module having: an adsorber having an inlet adapted to receive a gaseous mixture to be separated and an outlet connectable to a utilization line of gas impoverished in at least one of the constitue

Process for using a device for the separation of gas by adsorption, said device comprising at least one module having: an adsorber having an inlet adapted to receive a gaseous mixture to be separated and an outlet connectable to a utilization line of gas impoverished in at least one of the constituents of the gaseous mixture; a reversible rotary machine having first and second opposed gas passages, the first passage communicating continuously with a source of said gaseous mixture, the second passage communicating continuously with the inlet of the adsorber; and means to actuate the rotary machine sequentially in opposite directions of rotation, wherein for each module, the process comprises: supplying the gaseous mixture to be separated to the inlet of the adsorber and alternately actuating the rotary machine during a first phase of pressurization and of production in one direction, then during a second phase of depressurization and desorption in the other direction.