1. Prepare the experimental setup: Connect the compressed air source, condenser, separation membrane, and other equipment, ensuring secure connections.
2. Gas purification: Pass the air through a purification device to remove impurities and obtain pure air.
3. Air compression: Start the compressor to compress the purified air to a higher pressure.
4. Condensation treatment: Send the compressed air into the condenser to lower the gas temperature, causing water and other impurities to condense and separate.
5. Separation membrane separation: Pass the condensed gas through a separation membrane to collect oxygen and nitrogen separately.
6. Nitrogen collection: Collect the nitrogen obtained from the separation membrane to obtain the prepared nitrogen gas.
