Oxygen and nitrogen generation
Nitrogen generation
Nitrogen is an inert gas that is suitable for a wide range of applications, covering various aspects of chemical manufacturing, processing, handling and shipping. Nitrogen use by purity PSA can produce nitrogen at various levels of purity. The lower the purity, the lower is the cost of nitrogen production. For example, the quality of vegetable oil can be maintained by blanketing with 99.5% nitrogen purity. Normal nitrogen purity for food processing is in the range from 99% to 99.5%. Lower purity nitrogen in the range from 96% to 99% is often used in fire and explosion prevention. High purity with nitrogen content from 99.9 % to 99.999 % is typically used for laser cutting, electronics soldering and pharmaceutical applications
| Use of nitrogen | Purity of the nitrogen |
| Food processing | 99.0 to 99.9% |
| Fire prevention | 95% |
| Explosion prevention | 95 to 98% |
| Chemical blanketing | 95 to 99.9% |
| Pressure testing | 95% |
| Injection moulding | 95 to 99.5% |
| Electronic soldering | 99.95 to 99.995% |
| Laser cutting | 99.95 to 99.995% |
| Pharmaceutical | 99.95 to 99.995% |
Oxygen generation
An oxygen concentrator is a device that concentrates the oxygen from a gas supply (typically ambient air) by selectively removing nitrogen to supply an oxygen-enriched product gas stream.
Industrial oxygen generator systems are used where compressed air is available and a higher concentration of oxygen is desired. Pressure swing adsorption technology incorporates molecular sieve for gas separation. In the case of oxygen generation a zeolite - based sieve forces preferential adsorption for nitrogen. Clean, dry air is passed through the sieve beds on the oxygen generator, producing an oxygen-enriched gas.
Oxygen purity up to 95% is available