Gas stream enrichment using silicone separator cascades

An apparatus for enriching a concentration of a first gas of a gas mixture flow, the apparatus comprising:

• a plurality of gas separator cells including a first set configured in a parallel arrangement constituting a first stage;
• one or more subsequent stages including respective subsequent sets of gas separator cells configured in a parallel arrangement, a gas separator cell of a respective subsequent stage receiving an output of a corresponding gas separator cell of a prior stage as input;
• the gas separator cell of the plurality of gas separator cells including an input portion that includes a gas inlet and a depleted gas outlet, the input portion connected to an output portion that includes an outlet, the outlet including an enriched gas flow of a target gas connecting to a corresponding separator cell input portion inlet of a subsequent stage;
• the gas separator cell including a chamber formed by an air-tight connection of the input portion and the output portion with a selective gas-permeable membrane bifurcating the chamber;
• the output portion chamber of the gas separator cell including a gas-permeable material supporting the gas-permeable membrane;
• the depleted gas outlet of a first gas separator cell of the parallel arrangement of a first stage connects to an input feed of a second gas separator cell of the first stage, and the depleted gas outlet of an “nth” gas separator cell of the first stage connects to an exhaust output;
• the depleted gas outlet of an “nth” gas separator cell of a second stage connects to an input feed of the first gas separator cell of the first stage;
• at least one multichannel pump head connected to a shaft of a single pump motor providing pressurization of the depleted gas outlet flow to respective input feeds;
• and
• a final stage output of respective gas separator cells of a final parallel arrangement providing an enriched gas flow of the target gas.