The engineering condition design of the air separation unit is based on atmospheric conditions to ensure stable operation of the equipment under various environments. The designed atmospheric pressure is 100kPa (A), the ambient temperature is set to 32°C, the relative humidity is 80%, the altitude is 100 meters, and the atmospheric oxygen content is maintained at 20.95%. The annual average temperature is 19.3°C, the extreme maximum temperature can reach 43°C, and the extreme minimum temperature is -5°C, to ensure the normal operation of the equipment within the range of climate change. In addition, considering the impact of earthquakes, reasonable seismic design is also carried out according to the local earthquake intensity during the design to cope with sudden natural disasters. This comprehensive design ensures the safety and efficiency of the air separation unit.
Yield and purity (out of bounds)
| Product Name | Yield | purity (V/V) | Outlet pressure | Remark |
| Nm³/h | MPa(G) | |||
| Liquid Oxygen | 1500 | ≥99.6% O₂ | Into the tank | continuous |
| Liquid Nitrogen | 300 | ≤3ppm O₂ | Into the tank | continuous |
| Liquid Argon | 40 | ≤1.5ppm O₂,≤4ppm N₂ | Into the tank | continuous |
Note: Liquid products are converted to gaseous data. Nm/h refers to 0℃, 760mmHg.
Operation cycle (interval between two major heatings) ≥2 years
Device heating and thawing time ~36 hours
Device startup time (from expansion machine startup to oxygen product reaching purity index) ~36 hours
Raw air impurity conditions：
CO₂ ≤400 ppm
CH4 ≤5 ppm
C₂H₂≤0.5 ppm
CnHm ≤8 ppm
Mechanical impurities≤ 30 mg/m3
Circulating water：
Inlet temperature 32 ℃
Return water temperature
Inlet pressure 0.4 Mpa(G)
Outlet pressure 0.25 Mpa(G)
pH value 7~8
The key role of purifier and fractionator systems in air separation units
In the air separation unit (ASU), the purifier and fractionator system are the core components to ensure efficient gas separation and high-purity output. The purifier ensures gas purity by removing impurities and pollutants from the raw air, protects the operation of subsequent equipment and improves the overall separation efficiency. The fractionator system uses the difference in boiling points of different gases to accurately separate oxygen, nitrogen, argon and other components in the air to ensure the production of high-purity gas that meets industrial standards. Jiangxi Oxygen Plant (JIANGXI OXYGEN PLANT CO., LTD) focuses on providing these two key equipment. With its advanced technology and reliability, it ensures the efficient operation and long-term stability of each air separation unit, which is widely used in chemical, medical, metallurgical and other industries.
With our rich experience and expertise in the field of air separation units, we have an important position in the international market. We provide comprehensive turnkey one-stop services to ensure that every link of the project from design to installation is seamless. Specific services include：
- Customized design and equipment manufacturing
- Installation, commissioning and programming
- After-sales support and technical services
Through this one-stop service, we help customers complete the project efficiently and safely, ensuring that every link meets the highest standards.
FAQ
What is a gas fractionation plant?
Glossary Terms » Fractionation Plant. A processing plant that separates hydrocarbon mixtures based on the vapor pressures of its component molecules, either by adding heat (distillation) or removing heat (condensation); products such as propane, butane, and ethane are produced in this process.
What is the fractionation of gases?
This is the process of separating the various natural gas liquids present in the remaining gas stream by using the varying boiling points of the individual hydrocarbons in the gas stream.
What is a gas processing plant?
Definition: A natural gas processing plant is a facility designed to "clean" raw natural gas by separating impurities and various non-methane hydrocarbons and fluids to produce what is known as 'pipeline quality' dry natural gas.
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