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The KDONAr-1500/300/40 liquid air separation unit is a high-performance cryogenic air separation unit widely used in the textile, metallurgy, chemical, and energy industries. Utilizing advanced molecular sieve purification and distillation processes, it consistently produces high-purity liquid oxygen, liquid nitrogen, and liquid argon, meeting the high standards of stability, reliability, and energy efficiency required by downstream industrial customers.
Technical Design Basis
Applicable Environmental Conditions:
32°C ambient temperature, 80% relative humidity, 100m altitude
Circulating Water:
Inlet Temperature 32°C, Pressure 0.4MPa(G)
Air Requirements:
CO₂ ≤ 400ppm, CH₄ ≤ 5ppm, C₂H₂ ≤ 0.5ppm
Power Supply:
High Voltage 10kV / Low Voltage 380V/220V, Three-Phase Four-Wire
| Indicator Category | Specific parameters: | unit | Numerical requirements |
| Product Yield | Liquid oxygen production | Nm³/h | 1500 |
| Liquid nitrogen production | Nm³/h | 300 | |
| Liquid argon production | Nm³/h | 40 | |
| Product Purity | Liquid oxygen purity | - | ≥ 99.6% |
| Liquid nitrogen oxygen content | ppm | ≤ 3 | |
| Liquid argon oxygen content | ppm | ≤ 1.5 | |
| Liquid argon nitrogen content | ppm | ≤ 4 | |
| Unit Operation | Operation cycle | Year | ≥ 2 |
| Device startup time | Hours | About 36 | |
| Average power consumption (energy consumption) | kW | 2273.3 |
Air separation unit process flow:
This equipment utilizes molecular sieve purification + liquid flow:
Air filtration and compression
Precooling and molecular sieve purification
Lower column distillation: Produces liquid oxygen and liquid nitrogen
Upper column distillation: Further purifies oxygen and nitrogen, separates liquid argon
Finished products are transported to storage tanks to ensure a continuous and stable supply
one-stop solution
professional team
High End
Core Equipment
Air Compressor
Precooling Unit
Molecular Sieve Purification System
Fraction Column System
Turbine Expander
Electronic Control and Instrumentation System
Applications:
Metallurgy: Providing high-purity oxygen for steel production, improving combustion efficiency
Chemicals: Supporting large-scale synthesis, oxidation, and nitrogen blanketing processes
Textiles: Ensuring continuous dyeing and finishing and production process stability
Energy: Assisting coal gasification, power generation, and environmental protection processes
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